SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

Current Report

Filed pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) August 11, 1998

BRANDYWINE REALTY TRUST
(Exact name of registrant as specified in its charter)

          MARYLAND                                     1-9106                           23-2413352
(State or Other Jurisdiction                         (Commission                     (I.R.S. Employer
      of Incorporation)                             file number)                  Identification Number)

16 Campus Boulevard, Newtown Square, Pennsylvania 19073
(Address of principal executive offices)

(610) 325-5600
(Registrant's telephone number, including area code)


Item 2. Acquisition or Disposition of Assets.

(i) Consummation of the Lazard Transaction. On September 28, 1998, Brandywine Realty Trust (the "Trust," and together with its subsidiaries, the "Company") and Brandywine Operating Partnership, L.P. (the "Operating Partnership") consummated the "Lazard Transaction." Reference is made to the previous description of the Lazard Transaction contained in Item 5 "Lazard Transaction" of the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1998 (the "Form 10-Q"). The information regarding the Lazard Transaction contained in this Current Report on Form 8-K amends and supplements the information regarding the Lazard Transaction previously provided by the Company in the Form 10-Q. Defined terms used in the following discussion of the Lazard Transaction but not defined below have the meanings given to them in the Form 10-Q.

At the September 28th closing, the Company acquired 67 of the Lazard Properties (containing approximately 5.5 million net rentable square feet) for an aggregate purchase price of approximately $591.6 million. The Company paid approximately (i) $37.5 million of the acquisition price through the issuance of $37.5 million in stated value of the Trust's Series A Preferred Shares (as defined below), (ii) $74.5 million of the acquisition price through the issuance of $74.5 million in stated value of the Operating Partnership's Series B Preferred Units (as defined below), (iii) $239.7 million of the acquisition price through the assumption of mortgage debt secured by 62 of the Lazard Properties and (iv) $239.9 million of the acquisition price in cash (which was funded through advances under the Company's $550 million revolving credit facility and the Company's $150 million credit facility).

The Operating Partnership's acquisition of four of the 67 Lazard Properties (known as Arboretum I, II, III and V) was structured so as to defer transfer of title until the earlier of (i) receipt of consent to the transfer from the lender that holds the mortgage on the properties and (ii) prepayment of the loan. The Operating Partnership has agreed to prepay the loan by January 31, 1999 if lender consent to the transfer has not then been received. Upon transfer of title to the properties, the Operating Partnership or the applicable seller will pay to the other, as applicable, an amount equal to the economic benefits or losses arising from the ownership of the properties from the September 28 closing date until the date of transfer of title. The Operating Partnership also agreed to acquire the additional Lazard Property (commonly known as 8260 Greensboro Drive) not acquired at the September 28 closing on January 31, 1999, subject to receipt of approval of a subdivision of such property from an adjacent property (which adjacent property is the subject of a purchase option held by the Operating Partnership). The acquisition price of 8260 Greensboro Drive is $20.0 million, which is payable at the time of acquisition of such property through the issuance of $20.0 million in stated value of the Operating Partnership's Series B Preferred Units. The Company expects the required subdivision to be approved prior to January 31, 1999.

In exchange for the $591.6 million purchase price, the Operating Partnership also acquired approximately 172 acres of undeveloped land and a 50% general partnership interest in each of IR Northlight II Associates, a Pennsylvania general partnership, and Interstate Center Associates, a Virginia general partnership. In connection with the closing of the Lazard Transaction, the Operating Partnership also (i) acquired the remaining 50% general partnership interest in IR Northlight II Associates from a third party unrelated to the Company or the Sellers in exchange


for $7.5 million in cash (which was funded through advances under the Company's $550 million revolving credit facility) and (ii) agreed to acquire (subject to execution of the definitive documents and satisfaction of customary closing conditions) the remaining 50% general partnership interest in Interstate Center Associates from a third party unrelated to the Company or the Sellers in exchange for approximately $2.1 million payable through the issuance of Class A Units valued at $24.00 per unit. IR Northlight II Associates owns the Lazard Property commonly known as 7350 Tilghman Street, Allentown, Pennsylvania, and Interstate Center Associates owns the Lazard Property commonly known as 2100-2108 West Laburnum (Interstate Center), Richmond, Virginia.

At the closing, the Operating Partnership also lent Commonwealth Atlantic Land Company, one of the Sellers ("CALC"), $3.0 million which CALC used to purchase $3.0 million in stated value of the Operating Partnership's Series B Preferred Units. Such loan is evidenced by a promissory note (the "CALC Note") in favor of the Operating Partnership which accrues interest at a rate of 7.25% per annum and matures on September 30, 1999. The Operating Partnership may, at its option, apply any outstanding principal amount of the CALC Note, together with any accrued and unpaid interest thereon, towards the payment of the $68.0 million purchase price for an certain office property currently under construction in Tyson's Corner, Virginia which is the subject of a purchase option granted to the Operating Partnership as part of the Lazard Transaction.

In connection with the Lazard Transaction, the Trust designated 750,000 of its authorized and unissued preferred shares of beneficial interest, par value $.01 per share, as 7.25% Series A Cumulative Convertible Preferred Shares (the "Series A Preferred Shares"). Each Series A Preferred Share has a stated value (the "Stated Value") of $50 and is convertible into Common Shares at the option of the holder at a conversion price (the "Conversion Price") of $28. The Conversion Price will be reduced to $26.50 if the average closing price of the Common Shares during the 60-trading day period ending on December 31, 2003 is $23 or lower. At any time that the average market price of the Common Shares is equal to or greater than 120% of the Conversion Price for 60 consecutive trading days, the Trust has the right to redeem all or any part of the outstanding Series A Preferred Shares for an amount in cash equal to the aggregate Stated Value of the Series A Preferred Shares to be redeemed (plus accrued and unpaid distributions) or for a number of Common Shares equal to the aggregate Stated Value of the Series A Preferred Shares to be redeemed divided by the Conversion Price (plus accrued and unpaid distributions). In addition, at any time on or after January 2, 2004, the Trust has the right to redeem all or any part of the outstanding Series A Preferred Shares for an amount in cash equal to the aggregate Stated Value of the Series A Preferred Shares to be redeemed (plus accrued and unpaid distributions) or, in the event that the average closing price of the Common Shares is equal to or greater than 110% of the Conversion Price for 60 consecutive trading days, for a number of Common Shares equal to the aggregate Stated Value of the Series A Preferred Shares to be redeemed divided by the Conversion Price (plus accrued and unpaid distributions). Each Series A Preferred Share accrues distributions, payable in cash, in an amount equal to the greater of (i) $0.9063 per quarter (equivalent to $3.625 per annum) or (ii) the cash distributions paid or payable for the most recent quarter on the number of Common Shares into which a Series A Preferred Share is convertible. The holders of Series A Preferred Shares will have no voting rights except (i) with respect to actions which would have a material and

-3-

adverse effect on the rights of such holders and (ii) in the event quarterly distributions on the Series A Preferred Shares are in arrears for six or more quarters. In the event the quarterly distributions are so in arrears, the holders of the Series A Preferred Shares will have the right, voting together as a single class with any other class of the Trust's preferred shares of beneficial interest ranking on a parity with the Series A Preferred Shares, to elect two additional members to the Board of Trustees of the Trust (the "Board").

In exchange for the Trust's contribution to the Operating Partnership of the properties acquired by the Trust in exchange for the issuance of the Series A Preferred Shares, the Operating Partnership issued to the Trust $37.5 million in liquidation value of a newly created class of limited partner interest (the "Series A Preferred Mirror Units"). The preferences of the Series A Preferred Mirror Units "mirror" those of the Series A Preferred Shares. Upon conversion of Series A Preferred Shares into Common Shares, an equal number of Series A Preferred Mirror Units will be converted into an equal number of Class A Units. Upon redemption of Series A Preferred Shares for cash, an equal number of Series A Preferred Mirror Units will be canceled. Upon redemption of Series A Preferred Shares for Common Shares, an equal number of Series A Preferred Mirror Units will be redeemed for an equal number of Class A Units. Each Class A Unit is redeemable, at the option of the holder, for either an amount of cash equal to the trading price of one Common Share at the time of the redemption or, at the option of the Trust, for one Common Share.

In connection with the Lazard Transaction, the Operating Partnership created Series B Preferred Units of limited partner interest (the "Series B Preferred Units"). Each Class B Preferred Unit has a Stated Value of $50 and is convertible into Class A Units at the option of the holder at the Conversion Price. The Conversion Price is subject to reduction from $28.00 to $26.50 under the circumstances identified above. At any time that the average market price of the Common Shares is equal to or greater than 120% of the Conversion Price for 60 consecutive trading days, the Operating Partnership has the right to redeem all or any part of the outstanding Series B Preferred Units for an amount in cash equal to the aggregate Stated Value of the Series B Preferred Shares to be redeemed (plus accrued and unpaid distributions), or for a number of Class A Units equal to the aggregate Stated Value the Series B Preferred Shares to be redeemed divided by the Conversion Price (plus accrued and unpaid distributions). In addition, at any time on or after January 2, 2004, the Operating Partnership has the right to redeem all or any part of the outstanding Series B Preferred Units for an amount in cash equal to the aggregate Stated Value the Series B Preferred Shares to be redeemed (plus accrued and unpaid distributions) or, in the event that the average closing price of the Common Shares is equal to or greater than 110% of the Conversion Price for 60 consecutive trading days, for a number of Class A Units equal to the aggregate Stated Value the Series B Preferred Shares to be redeemed divided by the Conversion Price (plus accrued and unpaid distributions). Each Class B Preferred Unit accrues distributions, payable in cash, in an amount equal to the greater of (i) $0.9063 per quarter (equivalent to $3.625 per annum) or (ii) the cash distributions paid or payable on the number of Class A Units, or portion thereof, into which a Class B Preferred Unit is convertible. The holders of Series B Preferred Units have no voting rights except (i) with respect to actions which would have a material and adverse effect on the rights of such holders and (ii) in the event quarterly distributions on the Series B Preferred Units are in arrears for six or

-4-

more quarters. In the event quarterly distributions are so in arrears, holders of Series B Preferred Units have the right, voting separately as a class, to nominate two individuals who will vote as a group with the Board in connection with any action to be taken by the Operating Partnership at the direction of the Trust, as general partner, and as to which the Trust may act only upon authorization by its Board. Except for transfers to affiliates of the Sellers or upon the prior written consent of the Company, none of the Series B Preferred Units, the Class A Units issuable upon redemption or conversion of the Series B Preferred Units (the "Underlying Class A Units") nor the Common Shares issuable upon redemption of the Underlying Class A Units may be transferred prior to January 2, 2004.

None of the securities issued in connection with the Lazard Transaction nor the securities issuable upon the redemption or conversion thereof have been registered under the Securities Act of 1933, as amended, or any state securities laws and none of such securities may be offered and sold in the United States absent registration or an applicable exemption from registration. The Company has agreed to file registration statements registering the resale of the Series A Preferred Shares, the Common Shares issuable upon the redemption or conversion of the Series A Preferred Shares and the Common Shares issuable upon redemption of the Underlying Class A Units.

The definitive forms of the Articles Supplementary with respect to the Preferred Shares, the Company's $550 million revolving credit facility and pledge agreement with NationsBank, N.A., the Company's new $150 million credit facility with NationsBanc Mortgage Capital Corp., the Fourth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership creating the Series A Preferred Mirror Units and the Fifth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership creating the Series B Preferred Units are attached hereto as Exhibits 3.1, 10.1, 10.2, 10.3, 10.4 and 10.5, respectively.

At closing, Murry N. Gunty, a principal of Lazard Freres Real Estate Investors, L.L.C., a manager of realty investment funds ("LFREI"), and a senior member of its investment team, became a member of the Board of Trustees of the Company.

(ii) Consummation of the Axinn Transaction. On October 6, 1998, the Company and the Operating Partnership consummated the "Axinn Transaction." Reference is made to the previous description of the Axinn Transaction contained in Item 5 "Other Events" of the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 30, 1998 (the "Prior 8-K"). The information regarding the Axinn Transaction contained in this Current Report on Form 8-K amends and supplements the information regarding the Axinn Transaction previously provided by the Company in the Prior 8-K. Defined terms used in the following discussion of the Axinn Transaction but not defined below have the meanings given to them in the Prior 8-K.

At the October 6th closing, the Company acquired 22 of the Axinn Properties (containing approximately 889,993 net rentable square feet) for an aggregate acquisition price of approximately $62.7 million. The Company paid approximately $36.5 million of the acquisition

-5-

price in cash and approximately $26.2 million of the acquisition price through the issuance of 1,127,895 Class A Units. The Company paid the cash portion of the acquisition price through advances under its $550 million revolving credit facility and its $150 million credit facility. The Company did not assume any of the mortgage debt securing the acquired properties, which was discharged at the closing. At the closing, the Company also paid an aggregate of approximately $1.1 million in connection with its agreement to acquire the properties known as 3 Paragon Drive and 101 Paragon Drive. As indicated in the Prior 8-K, the Company expects to acquire 3 Paragon Drive on or about December 28, 1998 and expects to acquire 101 Paragon Drive by September 2005.

As indicated in the Prior 8-K, the Company has agreed to acquire the property known as 31 Commercial Street only upon satisfaction of certain environmental conditions relating to this property. As part of the Axinn Transaction, the Company and the applicable Axinn Entities agreed to defer the closing of two office properties in Long Island, New York (125 and 131 Jericho Turnpike) until the closing of the 263 Old Country Road property closing. The Company expects this closing to occur by approximately March 31, 1999. The Company and the applicable Axinn Entities also agreed to remove from the transaction the Long Island office property known as 163-167 South Service Road, which the Company had previously agreed to acquire for approximately $2.8 million. In addition, the Company did not acquire the Long Island industrial property known as 885 Waverly Road which, as indicated in the Prior 8-K, was subject to a purchase right in favor of a tenant. The tenant exercised its purchase right for this property.

The definitive form of the Sixth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership executed in connection with the Axinn Transaction is attached hereto as Exhibit 10.6. The First Amendment to Contribution Agreement, which provided for the above-referenced changes and certain other matters, is attached hereto as Exhibit 10.7.

At closing, Donald E. Axinn, founder and chairman of the Donald E. Axinn Companies, developers of office and industrial parks throughout the New York metropolitan area since 1958, became a member of the Board of Trustees of the Company.

Item 5. Other Events

From August 11, 1998 to September 2, 1998, the Company repurchased 86,744 of its Common Shares from the public at share prices ranging from $17.75 per share to $20.125 per share for a total of approximately $1.7 million.

-6-

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

(a) Financial Statements of Businesses Acquired.

The required financial statements of the Lazard Properties and the Axinn Properties will be included in an amendment to this Current Report on Form 8-K to be filed no later than December 12, 1998.

(b) Pro Forma Financial Information.

The required pro forma financial information which gives effect to the Company's acquisition of the Lazard Properties and the Axinn Properties will be included in an amendment to this Current Report Form 8-K by no later than December 12, 1998.

(c) Exhibits.

3.1 Articles Supplementary
10.1 Second Amended and Restated Credit Agreement
10.2 Pledge Agreement
10.3 Credit Agreement
10.4 Fourth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership creating the Series A Preferred Mirror Units
10.5 Fifth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership creating the Series B Preferred Units
10.6 Sixth Amendment to the Amended and Restated Agreement of Limited Partnership of the Operating Partnership
10.7 First Amendment to Contribution Agreement

-7-

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

BRANDYWINE REALTY TRUST

Date:  October 13,1998                      By: /s/ Gerard H. Sweeney
                                            ------------------------------------
                                            Title:   President and Chief
                                                     Executive Officer

-8-

EXHIBIT 3.1

BRANDYWINE REALTY TRUST

ARTICLES SUPPLEMENTARY

CLASSIFYING AND DESIGNATING 750,000

PREFERRED SHARES AS SHARES OF

7.25% SERIES A CUMULATIVE CONVERTIBLE PREFERRED SHARES

Brandywine Realty Trust, a Maryland real estate investment trust (the "Trust"), hereby certifies to the State Department of Assessments and Taxation of Maryland that:

FIRST: Under a power contained in Article 6 of the Trust's Declaration of Trust (as amended and restated to date, the "Declaration of Trust") the Board of Trustees (the "Board"), by resolutions duly adopted on August 6, 1998, classified and designated 750,000 shares of the Trust's preferred shares of beneficial interest, $.01 par value per share, as the 7.25% Series A Cumulative Convertible Preferred Shares, with the preferences, conversion and other rights, voting powers, restrictions, limitations as to distributions, qualifications and terms and conditions of redemption of shares (which under any restatement of the Declaration of Trust will become a part of Article 6 thereof, with any necessary or appropriate changes to the numbering or lettering thereof) as follows:

7.25% SERIES A CUMULATIVE CONVERTIBLE PREFERRED SHARES

1. Designation and Number. A series of Preferred Shares, designated the "7.25% Series A Cumulative Convertible Preferred Shares" (the "Series A Preferred Shares"), is hereby established. The par value of the Series A Preferred Shares, as set forth in the Declaration of Trust, is $.01 per share. The authorized number of Series A Preferred Shares shall be 750,000. The stated value of each Series A Preferred Share shall be $50.00 (the "Stated Value").

2. Rank. The Series A Preferred Shares shall, with respect to distribution rights and rights upon voluntary or involuntary liquidation, dissolution or winding up of the Trust, rank (a) senior to all classes or series of Common Shares (as defined in the Declaration of Trust) and to all equity securities the terms of which provide that such equity securities shall rank junior to such Series A Preferred Shares; (b) on a parity with all equity securities issued by the Trust other than those referred to in clauses (a) and
(c); and (c) junior to all equity securities issued by the Trust which rank senior to the Series A Preferred Shares in accordance with Section 6(d). The term "equity securities" shall not include debt securities including convertible debt securities.


3. Distributions.

a. The holders of Series A Preferred Shares shall be entitled to receive, when, as and if authorized by the Board out of funds legally available for that purpose, cumulative distributions payable in cash in an amount per Series A Preferred Share equal to the greater of (i) $0.9063 per quarter (equivalent to $3.625 per annum) or (ii) the cash distributions paid or payable on the number of Common Shares, or portion thereof, into which a Series A Preferred Share is convertible, in each case with appropriate proration for partial quarters. The amount referred in clause (ii) of this paragraph (a) with respect to each Distribution Period (as defined in Section 9 below) shall be determined as of the applicable Distribution Payment Date (as defined in Section 9 below) by multiplying the number of Common Shares, or portion thereof calculated to the fourth decimal point, into which a share of Series A Preferred Share would be convertible at the opening of business on such Distribution Payment Date (based on the Conversion Price then in effect) by the quarterly cash distribution payable or paid for such Distribution Period in respect of a Common Share outstanding as of the record date for the payment of distributions on the Common Shares with respect to such Distribution Period or, if different, with respect to the most recent quarterly period for which distributions with respect to the Common Shares have been declared. Such distributions shall be cumulative from the Issue Date (as defined in Section 9 below), whether or not in any Distribution Period or Periods such distributions shall be declared or there shall be funds of the Trust legally available for the payment of such distributions, and shall be payable quarterly in arrears on the Distribution Payment Dates, commencing on the first Distribution Payment Date after the Issue Date. Each such distribution shall be payable in arrears to the holders of record of the Series A Preferred Shares, as they appear on the share records of the Trust at the close of business on a record date which shall be not less than 10 and not more than 60 days prior to the applicable Distribution Payment Date and shall be fixed by the Board to coincide with the record date for the regular quarterly distributions, if any, payable with respect to the Common Shares. Accumulated, accrued and unpaid distributions for any past Distribution Periods may be declared and paid at any time, without reference to any regular Distribution Payment Date, to holders of record on a given date, which date shall not precede by more than 45 days the payment date thereof, as may be fixed by the Board. The amount of accumulated, accrued and unpaid distributions on any Series A Preferred Share, or fraction thereof, at any date shall be the amount of any distributions thereon calculated at the applicable rate to and including such date, whether or not earned or declared, which have not been paid in cash. The amount of distributions payable per Series A Preferred Share for the initial Distribution Period, or any other period shorter or longer than a full Distribution Period, shall be computed ratably on the basis of four 90-day quarters and a 364-day year.

b. No distribution on the Series A Preferred Shares shall be authorized by the Board or paid or set apart for payment by the Trust at such time as the terms

-2-

and provisions of any agreement of the Trust, including any agreement relating to its indebtedness, prohibits such authorization, payment or setting apart for payment or provides that such authorization, payment or setting apart for payment would constitute a breach thereof, or a default thereunder, or if such authorization or payment shall be restricted or prohibited by law. No interest, or sum of money in lieu of interest, shall be payable in respect of any distribution payment or payments on the Series A Preferred Shares which may be in arrears.

Notwithstanding the foregoing, distributions on the Series A Preferred Shares shall accumulate whether or not any of the foregoing restrictions exist, whether or not there are funds legally available for the payment thereof and whether or not such distributions are authorized. Accumulated but unpaid distributions on the Series A Preferred Shares shall not bear interest and holders of the Series A Preferred Shares shall not be entitled to any distributions in excess of full cumulative distributions. Any distribution payment made on the Series A Preferred Shares shall first be credited against the earliest accumulated but unpaid distribution due with respect to such shares which remains payable.

c. Except as provided in subsection 3(d) herein, if any Series A Preferred Shares are outstanding, no distributions (other than in Common Shares or other equity securities of the Trust ranking junior to the Series A Preferred Shares as to distributions and upon liquidation, dissolution or winding up of the Trust) shall be declared or paid or set apart for payment nor shall any other distribution be declared or made on any equity securities of the Trust ranking, as to distributions or upon liquidation, dissolution or winding up of the Trust, on a parity with or junior to the Series A Preferred Shares for any period unless full cumulative distributions have been or contemporaneously are declared and paid or declared and a sum sufficient for the payment thereof set apart for such payment on the Series A Preferred Shares for all past distribution periods and the then current distribution period, nor shall any Common Shares, or any other equity securities of the Trust ranking junior to or on a parity with the Series A Preferred Shares as to distributions or upon liquidation, dissolution or winding up of the Trust, be redeemed, purchased or otherwise acquired for any consideration (or any monies be paid to or made available for a sinking fund for the redemption of any such equity securities) by the Trust or any other entity controlled directly or indirectly by the Trust (except (i) by conversion into or exchange for other equity securities of the Trust ranking junior to the Series A Preferred Shares as to distributions and upon liquidation, dissolution or winding up of the Trust, (ii) for the repurchase of Common Shares held by employees, officers, trustees, or consultants of the Trust (or their permitted transferees) that are subject to restrictive share purchase agreements under which the Trust has the option or obligation to repurchase such shares upon the occurrence of certain events, such as termination of employment or (iii) as necessary for the Trust to continue to qualify as a REIT).

d. When distributions are not paid in full (or a sum sufficient for such full payment is not so set apart) upon the Series A Preferred Shares and any other equity

-3-

securities ranking on a parity as to distributions with the Series A Preferred Shares, all distributions declared upon the Series A Preferred Shares and any other equity securities ranking on a parity as to distributions with the Series A Preferred Shares shall be declared pro rata so that the amount of distributions declared per share of Series A Preferred Shares and such other equity securities shall in all cases bear to each other the same ratio that accumulated distributions per share on the Series A Preferred Shares and such other equity securities (which shall not include any accumulation in respect of unpaid distributions for prior distribution periods if such equity securities do not have a cumulative distribution) bear to each other.

e. Holders of Series A Preferred Shares shall not be entitled to any distribution, whether payable in cash, property or shares, in excess of full cumulative distributions on the Series A Preferred Shares as described above. Accumulated but unpaid distributions on the Series A Preferred Shares will accumulate as of the Distribution Payment Date on which they first become payable.

4. Liquidation Preference.

a. In the event of any voluntary or involuntary liquidation, dissolution or winding up of the Trust, the holders of the Series A Preferred Shares shall be entitled to receive out of the assets of the Trust available for distribution to shareholders remaining after payment or provisions for payment of all debts and other liabilities of the Trust a liquidation preference equal to the Stated Value per share, plus an amount equal to any accumulated and unpaid distributions to the date of payment, before any distribution of assets is made to holders of Common Shares or any other equity securities that rank junior to the Series A Preferred Shares as to liquidation rights.

b. If upon any such voluntary or involuntary liquidation, dissolution or winding up of the Trust, the assets of the Trust are insufficient to make such full payment to holders of the Series A Preferred Shares and the corresponding amounts payable on all shares of other classes or series of equity securities of the Trust ranking on a parity with the Series A Preferred Shares as to liquidation rights, then the holders of the Series A Preferred Shares and all other such classes or series of equity securities shall share ratably in any such distribution of assets in proportion to the full liquidating distributions to which they would otherwise be respectively entitled.

c. Written notice of any such liquidation, dissolution or winding up of the Trust, stating the payment date or dates when, and the place or places where, the amounts distributable in such circumstances shall be payable, shall be given by first class mail, postage pre-paid, not less than 30 nor more than 60 days prior to the payment date stated therein, to each record holder of the Series A Preferred Shares at the respective addresses of such holders as the same shall appear on the share transfer records of the Trust.

-4-

d. After payment of the full amount of the liquidating distributions to which they are entitled, the holders of Series A Preferred Shares shall have no right or claim to any of the remaining assets of the Trust.

e. None of a consolidation or merger of the Trust with or into another entity, a merger of another entity with or into the Trust, a statutory share exchange by the Trust or a sale, lease or conveyance of all or substantially all of the Trust's property or business shall be considered a liquidation, dissolution or winding up of the Trust.

f. In determining whether a distribution (other than upon voluntary or involuntary liquidation) by dividend, redemption or other acquisition of shares or otherwise is permitted under Maryland Law, no effect shall be given to amounts that would be needed, if the Trust were to be dissolved at the time of the distribution, to satisfy the preferential rights upon dissolution of shareholders whose preferential rights on dissolution are superior to those receiving the distribution.

5. Redemption.

a. Cash Redemption Right. On and after January 2, 2004 and, in addition, at any time after the Issue Date that the Current Market Price (as defined in Section 9) of the Common Shares has equaled or exceeded 120% of the Conversion Price for any 60 consecutive Trading Days (as defined in Section 9), the Trust, upon giving notice as provided below, may redeem the Series A Preferred Shares, in whole or in part, for a redemption price per share payable in cash equal to the Stated Value (the "Cash Redemption Right").

b. Share Redemption Right. If (i) at any time during the period commencing on the Issue Date and ending on January 1, 2004, the Current Market Price of the Common Shares has equaled or exceeded 120% of the Conversion Price for any 60 consecutive Trading Days or (ii) at any time on or after January 2, 2004, the Current Market Price of the Common Shares has equaled or exceeded 110% of the Conversion Price for 60 consecutive Trading Days, the Trust, upon giving notice as provided below, may redeem the Series A Preferred Shares, in whole or in part, for such number of Common Shares as equals the Stated Value of the Series A Preferred Shares to be redeemed divided by the Conversion Price as of the opening of business on the date set for such redemption (the "Share Redemption Right").

c. Limitations on Redemption.

(i) The Trust may exercise the Cash Redemption Right provided that the redemption price (other than the portion thereof consisting of accumulated and unpaid distributions) is payable solely out of the sale proceeds of other equity securities of the

-5-

Trust, and from no other source. For purposes of the preceding sentence, "equity securities" means any equity securities (including Common Shares and Preferred Shares (as defined in the Declaration of Trust)), shares, interest, participation or other ownership interests (however designated) and any rights (other than debt securities convertible into or exchangeable for equity securities) or options to purchase any of the foregoing.

(ii) If fewer than all of the outstanding Series A Preferred Shares are to be redeemed, the shares to be redeemed shall be determined pro rata or by lot or in such other manner as prescribed by the Board.

(iii) Notwithstanding anything to the contrary contained herein, unless full cumulative distributions on all Series A Preferred Shares shall have been or contemporaneously are declared and paid or declared and a sum sufficient for the payment thereof set apart for payment for all past distribution periods and the current distribution period, no Series A Preferred Shares shall be redeemed unless all outstanding Series A Preferred Shares are simultaneously redeemed or exchanged; provided, however, that the foregoing shall not prevent the purchase or acquisition of Series A Preferred Shares pursuant to a purchase or exchange offer made on the same terms to holders of all outstanding Series A Preferred Shares. In addition, unless full cumulative distributions on all outstanding Series A Preferred Shares have been or contemporaneously are declared and paid or declared and a sum sufficient for the payment thereof set apart for payment for all past distributions periods and the then current distribution period, the Trust shall not purchase or otherwise acquire directly or indirectly any Series A Preferred Shares or any equity securities of the Trust ranking junior to or on a parity with the Series A Preferred Shares as to distributions or upon liquidation, dissolution or winding up of the Trust (except (i) by conversion into or exchange for other equity securities of the Trust ranking junior to the Series A Preferred Shares as to distributions and upon liquidation, dissolution or winding up of the Trust, (ii) for the repurchase of Common Shares held by employees, officers, trustees, or consultants of the Trust (or their permitted transferees) that are subject to restrictive share purchase agreements under which the Trust has the option or obligation to repurchase such shares upon the occurrence of certain events, such as termination of employment or (iii) as necessary for the Trust to continue to qualify as a REIT).

(iv) The foregoing provisions of subsections
5(c)(i)-(iii) shall not prevent the purchase by the Trust of Series A Preferred Shares pursuant to Article 6 of the Declaration of Trust or otherwise in order to ensure that the Trust remains qualified as a REIT for federal income tax purposes.

(v) Immediately prior to any redemption of Series A Preferred Shares, the Trust shall pay, in cash, any accumulated and unpaid distributions through the Redemption Date (as defined in subsection (d) below), unless a Redemption Date falls after a Distribution Record Date and on or prior to the corresponding Distribution Payment Date, in

-6-

which case each holder of Series A Preferred Shares at the close of business on such Distribution Record Date shall be entitled to the distribution payable on such shares on the corresponding Distribution Payment Date notwithstanding the redemption of such shares on or prior to such Distribution Payment Date. Except as provided above, the Trust will make no payment or allowance for unpaid distributions, whether or not in arrears, on Series A Preferred Shares for which a notice of redemption has been given.

d. Procedures for Redemption.

(i) Notice of redemption shall be mailed, not less than 30 nor more than 60 days, prior to the date fixed for redemption set forth in such notice (the "Redemption Date") to each holder of record of Series A Preferred Shares to be redeemed, notifying such holder of the Trust's election to redeem such shares. Such notice shall be mailed to such holder's address as the same appears on the share records of the Trust. No failure to give such notice or any defect therein or in the mailing thereof shall affect the validity of the proceedings for the redemption of any Series A Preferred Shares except as to the holder to whom notice was defective or not given.

(ii) In addition to any information required by law, such notice shall state: (i) the Redemption Date, (ii) with respect to the Cash Redemption Right, the cash redemption price per Series A Preferred Share and, with respect to the Share Redemption Right, the number of Common Shares to be issued with respect to each Series A Preferred Share, (iii) the number of shares to be redeemed (and, if fewer than all the Series A Preferred Shares are to be redeemed from such holder, the number of shares to be redeemed from such holder), (iv) the place or places where certificates for such Series A Preferred Shares are to be surrendered for payment of the redemption price in cash, with respect to the Cash Redemption Right, and in certificates representing Common Shares, with respect to the Share Redemption Right, (v) that distributions on the shares to be redeemed will cease to accumulate on such Redemption Date and (vi) the date upon which the holder's conversion rights, if any, as to such shares shall terminate.

(iii) On or after the Redemption Date, each holder of Series A Preferred Shares to be redeemed shall present and surrender the certificates evidencing its Series A Preferred Shares to the Trust at the place designated in the notice of redemption and thereupon the redemption price (in cash or Common Shares, as applicable) of such shares shall be paid to or on the order of the person whose name appears on such certificate evidencing Series A Preferred Shares as the owner thereof and each surrendered certificate shall be canceled. If fewer than all the shares evidenced by any such certificate evidencing Series A Preferred Shares are to be redeemed, a new certificate shall be issued evidencing the unredeemed shares.

-7-

(iv) From and after the Redemption Date (unless the Trust defaults in payment of the redemption price), all distributions on the Series A Preferred Shares designated for redemption in such notice shall cease to accumulate and all rights of the holders thereof, except the right to receive the redemption price thereof (including all accumulated and unpaid distributions up to the Redemption Date), shall cease and terminate and such shares shall not thereafter be transferred (except with the consent of the Trust) on the Trust's books, and such shares shall not be deemed to be outstanding for any purpose whatsoever. At its election, the Trust, prior to a Redemption Date, may irrevocably deposit the redemption price (including accumulated and unpaid distributions) of the Series A Preferred Shares so called for redemption in trust for the holders thereof with a bank or trust company, in which case the redemption notice to holders of the Series A Preferred Shares to be redeemed shall (i) state the date of such deposit, (ii) specify the office of such bank or trust company as the place of payment of the redemption price and (iii) require such holders to surrender the certificates evidencing such shares at such place on or about the date fixed in such redemption notice (which may not be later than the Redemption Date) against payment of the redemption price (including all accumulated and unpaid distributions to the Redemption Date). At the close of business on a Redemption Date relating to the Trust's Share Redemption Right, each holder of Series A Preferred Shares to be so redeemed (unless the Trust defaults in the delivery of the Common Shares payable on such Redemption Date) shall be deemed to be the record holder of the number of Common Shares into which such Series A Preferred Shares are to be so redeemed, regardless of whether such holder has surrendered the certificates evidencing the Series A Preferred Shares. Any monies or Common Shares so deposited which remain unclaimed by the holders of the Series A Preferred Shares at the end of two years after the Redemption Date shall be returned by such bank or trust company to the Trust.

e. Status of Redeemed Shares. Any Series A Preferred Shares that shall at any time have been redeemed shall, after such redemption, have the status of authorized but unissued Preferred Shares, without designation as to series until such shares are once more designated as part of a particular series by the Board.

f. No Fractional Shares. No fractional shares or scrip representing fractions of Common Shares shall be issued upon redemption of a Series A Preferred Share pursuant to the Trust's Share Redemption Right. Instead of any fractional interest in a Common Share that would otherwise be deliverable upon the redemption of a Series A Preferred Share, the Trust shall pay to the holder of such Series A Preferred Share an amount in cash in respect of such fractional interest (computed to the nearest cent) based upon the Current Market Price of Common Shares on the Trading Day immediately preceding the Redemption Date. If more than one Series A Preferred Share shall be surrendered for redemption at one time by the same holder, the number of full Common Shares issuable upon redemption thereof shall be computed on the basis of the aggregate number of Series A Preferred Shares so surrendered.

-8-

g. Common Shares Issuable Upon Redemption. The Trust covenants that any Common Shares issued upon redemption of the Series A Preferred Shares shall be validly issued, fully paid and non-assessable.

6. Voting Rights.

a. Holders of the Series A Preferred Shares shall not have any voting rights, except as provided by law and as described below.

b. Whenever distributions on any Series A Preferred Shares shall be in arrears for six or more quarterly periods (a "Preferred Distribution Default"), the number of trustees of the Trust shall be automatically increased by two and the holders of such Series A Preferred Shares (voting separately as a class with all other equity securities ranking on a parity with the Series A Preferred Shares as to distributions and upon voluntary or involuntary liquidation, dissolution or winding up of the Trust upon which like voting rights have been conferred and are exercisable ("Parity Preferred Shares")) shall be entitled to vote for the election of a total of two additional trustees of the Trust (the "Preferred Share Trustees") who shall each be elected for one-year terms. Such election shall be held at a special meeting called by the holders of record of at least 10% of the outstanding Series A Preferred Shares or the holders of shares of any other series of Parity Preferred Shares so in arrears (unless such request is received less than 90 days before the date fixed for the next annual or special meeting of shareholders) or, if the request for a special meeting is received by the Trust less than 90 days before the date fixed for the next annual or special meeting of the shareholders, at the next annual or special meeting of shareholders, and at each subsequent annual meeting until all distributions accumulated on the Series A Preferred Shares for the past distribution periods and the distribution for the then current distribution period shall have been fully paid or authorized and a sum sufficient for the payment thereof set aside for payment in full.

c. If and when all accumulated distributions on the Series A Preferred Shares shall have been paid in full or set aside for payment in full, the holders of Series A Preferred Shares shall be divested of the voting rights set forth in Section 6(b) herein (subject to revesting in the event of each and every Preferred Distribution Default) and, if all accumulated distributions have been paid in full or set aside for payment in full on all other series of Parity Preferred Shares upon which like voting rights have been conferred and are exercisable, the term of office of each Preferred Share Trustee so elected shall terminate and the number of trustees of the Trust shall be automatically decreased by two. So long as a Preferred Distribution Default shall continue, any vacancy in the office of a Preferred Share Trustee may be filled by written consent of the Preferred Share Trustee remaining in office, or if there is no such remaining trustee, by vote of holders of a majority of the outstanding Series A Preferred Shares and any other series of Parity Preferred Shares voting as a single class. Any Preferred Share Trustee may be removed at any time with or without cause by the vote of, and shall not be removed otherwise

-9-

than by the vote of, the holders of record of a majority of the outstanding Series A Preferred Shares when they have the voting rights set forth in
Section 6(b) (voting separately as a class with all other series of Parity Preferred Shares upon which like voting rights have been conferred and are exercisable). The Preferred Share Trustees shall each be entitled to one vote per trustee on any matter.

d. So long as any Series A Preferred Shares remain outstanding, the Trust shall not, without the affirmative vote or consent of the holders of at least two-thirds of Series A Preferred Shares outstanding at the time, given in person or by proxy, either in writing or at a meeting, (i) authorize or create, or increase the authorized or issued amount of, any class or series of shares of beneficial interest ranking prior to Series A Preferred Shares with respect to the payment of distributions or the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Trust or reclassify any authorized shares of beneficial interest of the Trust into such shares, or create, authorize or issue any obligation or security convertible or exchangeable into or evidencing the right to purchase any such shares; or (ii) amend, alter or repeal the provisions of the Declaration of Trust or these Articles Supplementary, whether by merger, consolidation or otherwise, or consummate a merger or consolidation involving the Trust (any such merger or consolidation, an "Event"), so as to materially and adversely affect any right, preference, privilege or voting power of such Series A Preferred Shares or the holders thereof; provided, however, with respect to the occurrence of any of the Events set forth in (ii) above, the occurrence of any such Event shall not be deemed to materially adversely affect such rights, preferences, privileges or voting powers of holders of Series A Preferred Shares if immediately after any such Event (i) in which the Trust is the surviving entity, there are outstanding no equity securities ranking as to distribution rights or liquidation preference senior to the Series A Preferred Shares other than the securities of the Trust outstanding prior to such Event, (ii) in which the Trust is not the surviving entity, as a result of the Event, the holders of the Series A Preferred Shares receive shares of stock or other equity securities with preferences, rights and privileges substantially similar to the preferences, rights and privileges of the Series A Preferred Shares and there are outstanding no shares of stock or other equity securities of the surviving entity ranking as to distribution rights or liquidation preference senior to the Series A Preferred Shares other than the securities issued in respect of securities of the Trust outstanding prior to such Event or (iii) whether or not the Trust is the surviving entity, there are no outstanding equity securities of the Trust or its successor (other than securities of the Trust outstanding prior to such Event, or securities issued in respect of securities of the Trust outstanding prior to such Event) ranking as to distribution rights or liquidation preference senior to the Senior A Preferred Shares; and provided further that any increase in the amount of the authorized Preferred Shares or the creation or issuance of any series of Preferred Shares (other than the Series A Preferred Shares), in each case ranking on a parity with or junior to the Series A Preferred Shares with respect to payment of distributions and the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Trust, shall not be deemed to materially and adversely affect such rights, preferences, privilege or voting powers.

-10-

Notwithstanding anything to the contrary contained herein, the creation or issuance of any series of Preferred Shares that is subject to mandatory redemption at a scheduled date or dates or that has the benefit of a sinking fund or that is subject to redemption at the option of the Trust or the holder but that otherwise ranks on a parity with or junior to the Series A Preferred Shares with respect to payment of distributions and the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Trust shall not require the affirmative vote or consent of all or any of the holders of Series A Preferred Shares.

e. So long as any of the Series A Preferred Shares remain outstanding, the Trust will not terminate the Trust's status as a REIT without the affirmative vote or consent of the holders of at least two-thirds of the outstanding Series A Preferred Shares, Common Shares and all other series or classes of shares of beneficial interest of the Trust outstanding at the time and having voting rights, voting together as a single class, given in person or by proxy, either in writing or at a meeting. For the purposes of the foregoing sentence, (i) each Series A Preferred Share shall entitle the holder thereof to such number of votes as is equal to the number of Common Shares into which such Series A Preferred Share is convertible and (ii) each other share of beneficial interest of the Trust outstanding at the time and having voting rights shall entitle the holder thereof to one vote per share or such number of votes per share as is set forth in the amendment to the Declaration of Trust designating such shares of beneficial interest.

f. The foregoing voting provisions shall not apply if, at or prior to the time when the act with respect to which such vote would otherwise be required shall be effected, all outstanding Series A Preferred Shares shall have been converted, redeemed or called for redemption upon proper notice and sufficient funds or Common Shares, as applicable, shall have been deposited in trust to effect such redemption.

7. Conversion.

a. Subject to the restrictions on transfer and ownership contained in Article 6 of the Declaration of Trust, each whole (but not fractional) Series A Preferred Share shall be convertible at any time, at the option of the holder thereof, into such number of fully paid and non-assessable Common Shares as is equal to the quotient that results from dividing (i) the sum of (X) the Stated Value plus (Y) accrued and unpaid distributions on such Series A Preferred Share (other than such accrued and unpaid distributions that the Trust elects to pay in cash at the time of conversion) by (ii) a conversion price (the "Conversion Price") of $28.00 per Series A Preferred Share; provided, however, that if the average Current Market Price of the Common Shares during the 60-Trading Day period ending on December 31, 2003 is $23.00 or lower then the Conversion Price shall automatically be reduced from $28.00 to $26.50, subject to adjustment as described in Section 7(f) herein; provided, further, that the right to convert Series A Preferred

-11-

Shares called for redemption pursuant to Section 5 shall terminate at the close of business on the Redemption Date, unless the Trust shall default in making payment of the redemption price.

b. To exercise the conversion right, the holder of each Series A Preferred Share to be converted shall surrender the certificate evidencing such share, duly endorsed or assigned to the Trust or in blank, at the principal office of the Transfer Agent accompanied by written notice to the Trust that the holder thereof elects to convert such Series A Preferred Share. Unless the shares issuable on conversion are to be issued in the same name as the name in which such Series A Preferred Share is registered, in which case the Trust shall bear the related taxes, each share surrendered for conversion shall be accompanied by instruments of transfer, in form satisfactory to the Trust, duly executed by the holder or such holder's duly authorized attorney and an amount sufficient to pay any transfer or similar tax (or evidence reasonably satisfactory to the Trust demonstrating that such taxes have been paid).

c. Each conversion shall be deemed to have been effected immediately prior to the close of business on the date on which the certificates for Series A Preferred Shares shall have been surrendered and such notice (and if applicable, payment of an amount equal to the distribution payable on such shares) received by the Trust as aforesaid, and the person or persons in whose name or names any certificate or certificates for Common Shares shall be issuable upon such conversion shall be deemed to have become the holder or holders of record of the shares evidenced thereby at such time on such date, and such conversion shall be at the Conversion Price in effect at such time and on such date unless the share transfer books of the Trust shall be closed on that date, in which event such person or persons shall be deemed to have become such holder or holders of record at the close of business on the next succeeding day on which such share transfer books are open, but such conversion shall be at the Conversion Price in effect on the date on which such shares have been surrendered and such notice received by the Trust.

d. Holders of Series A Preferred Shares at the close of business on a Distribution Record Date shall be entitled to receive the distribution payable on such shares on the corresponding Distribution Payment Date notwithstanding the conversion of such shares following such Distribution Record Date and prior to such Distribution Payment Date. However, certificates evidencing Series A Preferred Shares surrendered for conversion during the period between the close of business on any Distribution Record Date and ending with the opening of business on the corresponding Distribution Payment Date (except shares converted after the issuance of a notice of redemption with respect to a Redemption Date during such period or coinciding with such Distribution Payment Date) shall be accompanied by payment of an amount equal to the distribution payable on such shares on such Distribution Payment Date. A holder of Series A Preferred Shares on a Distribution Record Date who (or whose transferee) tenders any such shares for conversion into Common Shares on such Distribution Payment Date shall receive the distribution payable by the Trust on such Series A Preferred Shares on such date, and the

-12-

converting holder need not include payment of the amount of such distribution upon surrender of certificates representing such Series A Preferred Shares for conversion. Except as provided above, the Trust shall make no payment or allowance for unpaid distributions, whether or not in arrears, on converted shares or for distribution on the Common Shares that are issued upon such conversion.

As promptly as practicable after the surrender of certificates for Series A Preferred Shares as aforesaid, the Trust shall issue and shall deliver at such office to such holder, or on such holder's written order, a certificate or certificates for the number of full Common Shares issuable upon the conversion of such shares in accordance with the provisions of this Section 7, and any fractional interest in respect of a Common Share arising upon such conversion shall be settled as provided in subsection (e) of this Section 7.

e. No fractional shares or scrip representing fractions of Common Shares shall be issued upon conversion of the Series A Preferred Shares. Instead of any fractional interest in a Common Share that would otherwise be deliverable upon the conversion of a Series A Preferred Share, the Trust shall pay to the holder of such share an amount in cash in respect of such fractional interest based upon the Current Market Price of Common Shares on the Trading Day immediately preceding the date of conversion. If more than one Series A Preferred Share, as the case may be, shall be surrendered for conversion at one time by the same holder, the number of full Common Shares issuable upon conversion thereof shall be computed on the basis of the aggregate number of Series A Preferred Shares so surrendered.

f. Conversion Price Adjustments.

The Conversion Price shall be adjusted from time to time as follows:

(i) If the Trust shall after the Issue Date (A) pay or make a distribution to holders of its equity securities in Common Shares, (B) subdivide its outstanding Common Shares into a greater number of shares, (C) combine its outstanding Common Shares into a smaller number of shares or (D) issue any shares of beneficial interest by reclassification of its Common Shares, the Conversion Price in effect at the opening of business on the day following the date fixed for the determination of shareholders entitled to receive such distribution or at the opening of business on the day following the day on which such subdivision, combination or reclassification becomes effective, as the case may be, shall be adjusted so that the holder of any Series A Preferred Shares thereafter surrendered for conversion shall be entitled to receive the number of Common Shares that such holder would have owned or have been entitled to receive after the happening of any of the events described above had such Series A Preferred Shares been converted immediately prior to the record date in the case of a distribution or the effective date in the case of a subdivision, combination or reclassification. An adjustment made pursuant to this subsection (i) shall become effective immediately after the opening of

-13-

business on the day next following the record date (except as provided in subsection (j) below) in the case of a distribution and shall become effective immediately after the opening of business on the day next following the effective date in the case of a subdivision, combination or reclassification.

(ii) If the Trust shall issue after the Issue Date rights, options or warrants to all holders of Common Shares entitling them
(for a period expiring within 45 days after the record date mentioned below) to subscribe for or purchase Common Shares at a price per share less than the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such rights, options or warrants (any of the foregoing being hereinafter in this subsection (ii) sometimes called the "Securities"), then the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution by (II) a fraction, the numerator of which shall be the sum of (A) the number of Common Shares outstanding on the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution and (B) the number of shares that the aggregate proceeds to the Trust from the issuance and the exercise of such rights, options or warrants for Common Shares would purchase at such Fair Market Value, and the denominator of which shall be the sum of (A) the number of Common Shares outstanding on the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution and (B) the number of additional Common Shares offered for subscription or purchase pursuant to such rights, options or warrants. Such adjustment shall become effective immediately upon the opening of business on the business day next following the record date fixed for the determination of shareholders entitled to receive such distribution (subject to paragraph (j) below). In determining whether any rights, options or warrants entitle the holders of Common Shares to subscribe for or purchase Common Shares at less than such Fair Market Value, there shall be taken into account any consideration received by the Trust upon issuance and upon exercise of such rights, options or warrants, the value of such consideration, if other than cash, to be determined by the Chief Executive Officer or the Board, whose determination shall be conclusive. For the purposes of this subsection (ii), the distribution of a Security, which is distributed not only to the holders of the Common Shares on the date for the determination of shareholders entitled to such distribution of such Security, but also is distributed or distributable with each Common Share delivered or deliverable to a person converting a Series A Preferred Share after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection (ii); provided that on the date, if any, on which a person converting a Series A Preferred Share would no longer be entitled to receive such Security with a Common Share (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (ii) (and such day shall be deemed to be "the record date fixed for the determination of shareholders entitled to receive such distribution" within the meaning of this subsection (ii)).

-14-

In the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion Price (if previously adjusted on account of the issuance of such rights, options or warrants) shall be adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(iii) If the Trust shall distribute to all holders of its Common Shares any equity securities of the Trust (other than Common Shares) or evidence of its indebtedness or assets (excluding cash distributions paid out of current or accumulated funds from operations to the extent the same results in a payment of at least equal cash distributions to the holders of Series A Preferred Shares) or rights, options and warrants to subscribe for or purchase any of its securities (excluding those rights and warrants issued to all holders of Common Shares entitling them for a period expiring within 45 days after the record date referred to in subparagraph (ii) above to subscribe for or purchase Common Shares, which rights and warrants are referred to in and treated under subparagraph (ii) above) (any of the foregoing being hereinafter in this subsection (iii) sometimes called the "Securities"), then in each case the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution by (II) a fraction, the numerator of which shall be the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such distribution less the then fair market value (as determined by the Chief Executive Officer or the Board, whose determination shall be conclusive) of the portion of the shares of beneficial interest or assets or evidences of indebtedness so distributed or of such rights, options or warrants applicable to one Common Share, and the denominator of which shall be the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such distribution. Such adjustment shall become effective immediately at the opening of business on the business day next following the record date fixed for the determination of shareholders entitled to receive such distribution (except as provided in subsection (j) below). For the purposes of this subsection (iii), the distribution of a Security, which is distributed not only to the holders of the Common Shares on the record date fixed for the determination of shareholders entitled to such distribution of such Security, but also is distributed or distributable with each Common Share delivered or deliverable to a person converting a Series A Preferred Share after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection (iii); provided that on the date, if any, on which a person converting a Series A Preferred Share would no longer be entitled to receive such Security with a Common Share (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (iii) (and such day shall be deemed to be "the record date fixed for the determination of the shareholders entitled to receive such distribution" within the meaning of this subsection (iii)). In the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion Price (if previously adjusted on account of the issuance of such rights, options or warrants) shall be

-15-

adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(iv) No adjustment in the Conversion Price shall be required unless such adjustment would require a cumulative increase or decrease of at least 1% in such price; provided, however, that any adjustments that by reason of this subsection (iv) are not required to be made shall be carried forward and taken into account in any subsequent adjustment until made; and provided, further, that any adjustment shall be required and made in accordance with the provisions of this Section 7 (other than this subsection
(iv)) not later than such time as may be required in order to preserve the tax-free nature of a distribution to the holders of Common Shares. Notwithstanding any other provisions of this Section 7, the Trust shall not be required to make any adjustment of the Conversion Price for the issuance of any Common Shares pursuant to any plan providing for the reinvestment of distributions or interest payable on securities of the Trust and the investment of additional optional amounts in Common Shares under such plan. All calculations under this Section 7 shall be made to the nearest cent with ($.005 being rounded upward) or to the nearest one-tenth of a share (with .05 of a share being rounded upward), as the case may be. Anything in this subsection (f) to the contrary notwithstanding, the Trust shall be entitled, to the extent permitted by law, to make such reductions in the Conversion Price, in addition to those required by this subsection (f), as the Board of Trustees, the chief executive officer or the chief financial officer of the Trust in its, his or her discretion shall determine to be advisable in order that any share distributions, subdivision of shares, reclassification or combination of shares, distribution of rights, options or warrants to purchase shares or securities, or a distribution of other assets (other than cash distributions) hereafter made by the Trust to its shareholders shall not be taxable.

g. If the Trust shall be a party to any transaction (including, without limitation, a merger, consolidation, statutory share exchange, self tender offer for all or substantially all of the Common Shares, sale of all or substantially all of the Trust's assets or recapitalization of the Common Shares and excluding any transaction as to which subsection (f)(i) of this Section 7 applied) (each of the foregoing being referred to herein as a "Transaction"), in each case as a result of which Common Shares shall be converted into the right to receive shares, stock, securities or other property (including cash or any combination thereof), each Series A Preferred Share which is not converted into the right to receive shares, stock, securities or other property in connection with such Transaction shall thereafter be convertible into the kind and amount of shares, stock, securities and other property (including cash or any combination thereof) receivable upon the consummation of such Transaction by a holder of that number of Common Shares into which one Series A Preferred Share was convertible immediately prior to such Transaction, assuming such holder of Common Shares (i) is not a Person with which the Trust consolidated or into which the Trust merged or which merged into the Trust or to which such sale or transfer was made, as the case may be (a "Constituent Person"), or an affiliate of a Constituent Person and (ii) failed to exercise his

-16-

appraisal rights or rights of election, if any, as to the kind or amount of shares, stock, securities and other property (including cash) receivable upon such Transaction (each a "Non-Electing Share") (provided that if the kind and amount of shares, stock, securities and other property (including cash) receivable upon such Transaction is not the same for each Non-Electing Share, the kind and amount receivable by each Non-Electing Share shall be deemed to be the kind and amount receivable per share by a plurality of the Non-Electing Shares). The Trust shall not be a party to any Transaction unless the terms of such Transaction are consistent with the provisions of this subsection (g), and it shall not consent or agree to the occurrence of any Transaction until the Trust has entered into an agreement with the successor or purchasing entity, as the case may be, for the benefit of the holders of the Series A Preferred Shares that will contain provisions enabling the holders of the Series A Preferred Shares that remain outstanding after such Transaction to convert into the consideration received by holders of Common Shares at the Conversion Price in effect immediately prior to such Transaction. The provisions of this subsection (g) shall similarly apply to successive Transactions.

h. If:

(i) the Trust shall make a distribution on the Common Shares (excluding cash distributions paid out of current or accumulated funds from operations to the extent the same results in a payment of at least equal cash distribution to the holders of Series A Preferred Shares) or there shall be a reclassification, subdivision or combination of Common Shares; or

(ii) the Trust shall authorize the granting to the holders of the Common Shares of rights, options or warrants to subscribe for or purchase any shares of any class or any other rights, options or warrants; or

(iii) there shall be any reclassification of the Common Shares (other than an event to which subsection (f)(i) of this Section 7 applied) or any consolidation or merger to which the Trust is a party and for which approval of any shareholders of the Trust is required, or a statutory share exchange involving the conversion or exchange of Common Shares into securities or other property, or a self tender offer by the Trust for all or substantially all of its outstanding Common Shares, or the sale or transfer of all or substantially all of the assets of the Trust as an entity and for which approval of any shareholder of the Trust is required; or

(iv) there shall occur the voluntary or involuntary liquidation, dissolution or winding up of the Trust,

then the Trust shall cause to be filed with the Transfer Agent and shall cause to be mailed to the holders of the Series A Preferred Shares at their addresses as shown on the share records of the Trust, as promptly as possible, but at least 15 days prior to the applicable date hereinafter

-17-

specified, a notice stating (A) the date on which a record is to be taken for the purpose of such distribution or rights, options or warrants, or, if a record is not to be taken, the date as of which the holders of Common Shares of record to be entitled to such distribution or rights, options or warrants are to be determined or (B) the date on which such reclassification, subdivision, combination, consolidation, merger, statutory share exchange, sale, transfer, liquidation, dissolution or winding up is expected to become effective, and the date as of which it is expected that holders of Common Shares of record shall be entitled to exchange their Common Shares for securities or other property, if any, deliverable upon such reclassification, subdivision, combination, consolidation, merger, statutory share exchange, sale, transfer, liquidation, dissolution or winding up. Failure to give or receive such notice or any defect therein shall not affect the legality or validity of the proceedings described in this Section 7.

i. Whenever the Conversion Price is adjusted as herein provided, the Trust shall promptly file with the Transfer Agent an officer's certificate setting forth the Conversion Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment, which certificate shall be conclusive evidence of the correctness of such adjustment absent manifest error. Promptly after delivery of such certificate, the Trust shall prepare a notice of such adjustment of the Conversion Price setting forth the adjusted Conversion Price and the effective date such adjustment becomes effective and shall mail such notice of such adjustment of the Conversion Price to the holder of each Series A Preferred Share at such holder's last address as shown on the share records of the Trust.

j. In any case in which subsection (f) of this
Section 7 provides that an adjustment shall become effective on the date next following the record date for an event, the Trust may defer until the occurrence of such event (A) issuing to the holder of any Series A Preferred Shares converted after such record date and before the occurrence of such event the additional Common Shares issuable upon such conversion by reason of the adjustment required by such event over and above the Common Shares issuable upon such conversion before giving effect to such adjustment and (B) fractionalizing any Series A Preferred Share and/or paying to such holder any amount of cash in lieu of any fraction pursuant to subsection (e) of this
Section 7.

k. There shall be no adjustment of the Conversion Price in case of the issuance of any shares of beneficial interest of the Trust in a reorganization, acquisition or other similar transaction except as specifically set forth in this Section 7. If any action or transaction would require adjustment of the Conversion Price pursuant to more than one subsection of this Section 7, only one adjustment shall be made, and such adjustment shall be the amount of adjustment that has the highest absolute value.

l. If the Trust shall take any action affecting the Common Shares, other than action described in this Section 7, that in the opinion of the Board would materially

-18-

and adversely affect the conversion rights of the holders of the Series A Preferred Shares, the Conversion Price for the Series A Preferred Shares may be adjusted, to the extent permitted by law, in such manner, if any, and at such time, as the Board, in its sole discretion, may determine to be equitable in the circumstances.

m. The Trust will at all times reserve and keep available, free from preemptive rights, out of the aggregate of its authorized but unissued Common Shares, for the purpose of effecting conversion of the Series A Preferred Shares, the full number of Common Shares deliverable upon the conversion of all outstanding Series A Preferred Shares not theretofore converted. For purposes of this subsection (m), the number of Common Shares that shall be deliverable upon the conversion of all outstanding Series A Preferred Shares shall be computed as if at the time of computation all such outstanding shares were held by a single holder.

Any Common Shares issued upon conversion of the Series A Preferred Shares shall be validly issued, fully paid and non-assessable.

n. The Trust will pay any and all documentary stamp or similar issue or transfer taxes payable in respect of the issue or delivery of Common Shares or other securities or property on conversion or redemption of the Series A Preferred Shares pursuant hereto; provided, however, that the Trust shall not be required to pay any tax that may be payable in respect of any transfer involved in the issue or delivery of Common Shares or other securities or property in a name other than that of the record holder of the Series A Preferred Shares to be converted or redeemed, and no such issue or delivery shall be made unless and until the person requesting such issue or delivery has paid to the Trust the amount of any such tax or established, to the reasonable satisfaction of the Trust, that such tax has been paid.

8. Ownership Limitations. The Series A Preferred Shares are subject to the restrictions on transferability and ownership provisions set forth in Article 6 of the Declaration of Trust. For purposes of applying the ownership limitation and transfer restrictions contained in Section 6.6 of the Declaration of Trust, including the definition of the term "Ownership Limit," the term "Shares" is and shall hereinafter be understood to mean shares of beneficial interest of the Trust, whether such shares are Common Shares or Preferred Shares.

Pursuant to Section 6.6(k) of the Declaration of Trust, the initial holders (the "Initial Holders") of the Series A Preferred Shares and the Series B Preferred Units of Brandywine Operating Partnership, L.P. and the Initial Holders' permitted transferees who acquire such securities or any securities of the Trust or Brandywine Operating Partnership, L.P. issued upon redemption or conversion of such securities are hereby exempted from the Ownership Limit on the condition that, and for so long as, such holders comply with those

-19-

representations, warranties and agreements contained in Exhibit A attached hereto and made a part hereof.

9. Definitions.

"Current Market Price" of publicly traded Common Shares or any other class of shares of beneficial interest or other security of the Trust or any other issuer for any day shall mean the last reported sales price, regular way, on such day, or, if no sale takes place on such day, the average of the reported closing bid and asked prices on such day, regular way, in either case as reported on the New York Stock Exchange ("NYSE") or, if such security is not listed or admitted for trading on the NYSE, on the principal national securities exchange on which such security is listed or admitted for trading or, if not listed or admitted for trading on any national securities exchange, on the NASDAQ National Market or, if such security is not quoted on such NASDAQ National Market, the average of the closing bid and asked prices on such day in the over-the-counter market as reported by NASDAQ or, if bid and asked prices for such security on such day shall not have been reported through NASDAQ, the average of the bid and asked prices on such day as furnished by any NYSE member firm regularly making a market in such security selected for such purpose by the Chief Executive Officer of the Trust or the Board.

"Distribution Payment Date" shall mean, with respect to each Distribution Period, the fifteenth day of January, April, July and October in each year, commencing, on October 15, 1998; provided, however, that if any Distribution Payment Date falls on any day other than a business day, the distribution payment due on such Distribution Payment Date shall be paid on the business day immediately following such Distribution Payment Date.

"Distribution Periods" shall mean quarterly distribution periods commencing on January 1, April 1, July 1 and October 1 of each year and ending on and including the day preceding the first day of the next succeeding Distribution Period (other than the initial Distribution Period, which shall commence on the Issue Date and end on and include September 30, 1998).

"Fair Market Value" shall mean the average of the daily Current Market Prices per Common Share during the five consecutive Trading Days selected by the Trust commencing not more than 20 Trading Days before, and ending not later than, the earlier of the day in question and the day before the "ex" date with respect to the issuance or distribution requiring such computation. The term " 'ex' date," when used with respect to any issuance or distribution, means the first day on which the Common Shares trade regular way, without the right to receive such issuance or distribution, on the exchange or in the market, as the case may be, used to determine that day's Current Market Price.

-20-

"Issue Date" shall mean the date on which Series A Preferred Shares are first issued by the Trust.

"Trading Day" shall mean any day on which the securities in question are traded on the NYSE or, if such securities are not listed or admitted for trading on the NYSE, on the principal national securities exchange on which such securities are listed or admitted or, if not listed or admitted for trading on any national securities exchange, on the NASDAQ National Market or, if such securities are not quoted on such NASDAQ National Market, in the applicable securities market in which the securities are traded.

"Transfer Agent" means The Bank of New York, or such other agent or agents of the Trust as may be designated by the Board or its designee as the transfer agent for the Series A Preferred Shares.

SECOND: The Series A Preferred Shares have been classified and designated by the Board under the authority contained in the Declaration of Trust.

THIRD: These Articles Supplementary have been approved by the Board in the manner and by the vote required by law.

FOURTH: These Articles Supplementary shall be effective at the time the State Department of Assessments and Taxation of Maryland accepts these Articles Supplementary for record.

FIFTH: The undersigned President and Chief Executive Officer of the Trust acknowledges these Articles Supplementary to be the act of the Trust and, as to all matters or facts required to be verified under oath, the undersigned President and Chief Executive Officer acknowledges that to the best of his knowledge, information and belief, these matters and facts are true in all material respects and that this statement is made under the penalties for perjury.

-21-

IN WITNESS WHEREOF, the Trust has caused these Articles Supplementary to be executed under seal in its name and on its behalf by its President and Chief Executive Officer and attested to by its Secretary on this 28th day of September, 1998.

BRANDYWINE REALTY TRUST

                                By:  /s/ Gerard H. Sweeney
                                   -------------------------------------------
                                         Gerard H. Sweeney
                                         President and Chief Executive Officer

[SEAL]

ATTEST:


By:  /s/ Brad A. Molotsky
     -------------------------------
         Brad A. Molotsky, Secretary

-22-

EXHIBIT A to EXHIBIT D

REPRESENTATIONS OF
PROMETHEUS AAPT HOLDINGS, L.L.C.
and
COMMONWEALTH ATLANTIC PROPERTIES, INC.

I, the undersigned, certify that I am the _____________ of Prometheus AAPT Holdings, L.L.C., a Delaware limited liability company ("Prometheus"), and the ______________ of Commonwealth Atlantic Properties Inc., a Virginia corporation ("CAPI"), and on behalf of Prometheus and CAPI do further represent, warrant and agree that:

1. Prometheus is a limited liability company that is wholly-owned by LF Stragetic Realty Investors L.P., a Delaware limited partnership ("LFSRI").

2. CAPI is a corporation, over 99% of the outstanding stock of which is owned by LFSRI.

3. LFSRI is a limited partnership, the interests of which are held by various pension funds, partnerships, and other entities. No partner of LFSRI is a natural person or an organization described in Internal Revenue Code (the "Code") section 501(c)(17) or section 509(a), or a portion of a trust permanently set aside or to be used exclusively for the purposes described in section 642(c) or a corresponding provision of prior law (any such person, organization, or trust, an "Individual").

4. Applying the rules of Code section 544, as modified by Code section 856(h), no Individual would be treated as owning shares of beneficial interest of Brandywine Realty Trust (the "Company") held by Prometheus and CAPI that have a value in excess of 9.8% of the value of all outstanding shares of beneficial interest of the Company.

5. In connection with the delivery of these representations to the Company, the Board of Trustees of the Company is expected to grant LFSRI, Prometheus and CAPI permission to own shares of beneficial interest of the Company in excess of the "Ownership Limit" and related restrictions on ownership and transfer of shares of beneficial interest of the Company, as set forth in the Company's declaration of trust. LFSRI, Prometheus and CAPI acknowledge their understanding that if any of the above representations are violated such that the ownership by Prometheus or CAPI of shares of beneficial interest in the Company in excess of the Ownership Limit would cause an Individual to be treated as owning shares of beneficial interest of the Company held by Prometheus and CAPI that have a value in excess of 9.8% of the value of all outstanding shares of beneficial interest of the Company, or would cause the Company to cease to qualify as a REIT, the exemption granted by the Board of Trustees will be revoked, and a portion of the shares of beneficial interest owned by any of them will be automatically transferred to a trust, as more particularly set forth in the Company's declaration of trust.


IN WITNESS WHEREOF, I have hereunto subscribed by name as of this ____ day of ___________, 1998.

PROMETHEUS AAPT HOLDINGS, L.L.C.,
By: LF Strategic Realty Investors L.P.,
its sole member

By: ____________________________
Name:
Title:

COMMONWEALTH ATLANTIC PROPERTIES INC.

By: ____________________________
Name:
Title:

LF STRATEGIC REALTY INVESTORS L.P.
By: Lazard Freres Real Estate Investors L.L.C.,
its general partner

By: ____________________________
Name:
Title:


Exhibit 10.1

SECOND

AMENDED AND RESTATED

CREDIT AGREEMENT

among

BRANDYWINE REALTY TRUST

and

BRANDYWINE OPERATING PARTNERSHIP, L.P.

as Borrowers

and

THE SUBSIDIARIES OF THE BORROWERS

as Guarantors

and

THE LENDERS IDENTIFIED HEREIN

and

NATIONSBANC MONTGOMERY SECURITIES LLC

as Lead Arranger and Book Manager

and

NATIONSBANK, N.A.

as Administrative Agent

DATED AS OF SEPTEMBER 28, 1998


TABLE OF CONTENTS

                                                                                                                Page
SECTION 1  DEFINITIONS AND ACCOUNTING TERMS.......................................................................2
         1.1 Definitions..........................................................................................2
         1.2 Computation of Time Periods and Other Definition Provisions.........................................23
         1.3 Accounting Terms....................................................................................23
         1.4 Joint Venture Investments...........................................................................23

SECTION 2  CREDIT FACILITY.......................................................................................24
         2.1 Revolving Loans.....................................................................................24
         2.2 Letter of Credit Subfacility........................................................................26
         2.3 Joint and Several Liability of the Borrowers........................................................31
         2.4 Appointment of BOP..................................................................................33
         2.5 Non-Recourse........................................................................................33

SECTION 3  GENERAL PROVISIONS APPLICABLE TO LOANS AND LETTERS OF CREDIT..........................................34
         3.1 Interest............................................................................................34
         3.2 Place and Manner of Payments........................................................................34
         3.3 Prepayments.........................................................................................35
         3.4 Fees................................................................................................36
         3.5 Payment in full at Maturity; Extension of Maturity..................................................37
         3.6 Computations of Interest and Fees...................................................................37
         3.7 Pro Rata Treatment..................................................................................38
         3.8 Sharing of Payments.................................................................................39
         3.9 Capital Adequacy....................................................................................39
         3.10 Inability To Determine Interest Rate...............................................................40
         3.11 Illegality.........................................................................................40
         3.12 Requirements of Law................................................................................41
         3.13 Taxes..............................................................................................42
         3.14 Compensation.......................................................................................44
         3.15 Mitigation; Mandatory Assignment...................................................................44

SECTION 4  GUARANTY..............................................................................................45
         4.1 Guaranty of Payment.................................................................................45
         4.2 Obligations Unconditional...........................................................................45
         4.3 Modifications.......................................................................................46
         4.4 Waiver of Rights....................................................................................46
         4.5 Reinstatement.......................................................................................46
         4.6 Remedies............................................................................................47
         4.7 Limitation of Guaranty..............................................................................47
         4.8 Rights of Contribution..............................................................................47

SECTION 5  CONDITIONS PRECEDENT..................................................................................48
         5.1 Closing Conditions..................................................................................48
         5.2 Conditions to All Extensions of Credit..............................................................52

SECTION 6  REPRESENTATIONS AND WARRANTIES........................................................................53

                                      i

         6.1 Financial Condition.................................................................................53
         6.2 No Material Change..................................................................................53
         6.3 Organization and Good Standing......................................................................53
         6.4 Due Authorization...................................................................................53
         6.5 No Conflicts........................................................................................54
         6.6 Consents............................................................................................54
         6.7 Enforceable Obligations.............................................................................54
         6.8 No Default..........................................................................................54
         6.9 Ownership...........................................................................................54
         6.10 Indebtedness.......................................................................................54
         6.11 Litigation.........................................................................................55
         6.12 Taxes..............................................................................................55
         6.13 Compliance with Law................................................................................55
         6.14 Compliance with ERISA..............................................................................55
         6.15 Organization Structure/Subsidiaries................................................................56
         6.16 Use of Proceeds; Margin Stock......................................................................57
         6.17 Government Regulation..............................................................................57
         6.18 Environmental Matters..............................................................................57
         6.19 Solvency...........................................................................................58
         6.20 Investments........................................................................................58
         6.21 Location of Properties.............................................................................59
         6.22 Disclosure.........................................................................................59
         6.23 Licenses, etc......................................................................................59
         6.24 No Burdensome Restrictions.........................................................................59
         6.25 Year 2000 Compliance...............................................................................59
         6.26 Excluded Material Subsidiaries.....................................................................59

SECTION 7  AFFIRMATIVE COVENANTS.................................................................................60
         7.1 Information Covenants...............................................................................60
         7.2 Financial Covenants.................................................................................64
         7.3 Preservation of Existence...........................................................................65
         7.4 Books and Records...................................................................................65
         7.5 Compliance with Law.................................................................................65
         7.6 Payment of Taxes and Other Indebtedness.............................................................65
         7.7 Insurance...........................................................................................66
         7.8 Maintenance of Assets...............................................................................66
         7.9 Performance of Obligations..........................................................................66
         7.10 Use of Proceeds....................................................................................66
         7.11 Audits/Inspections.................................................................................66
         7.12 Additional Credit Parties..........................................................................67
         7.13 Interest Rate Protection Agreements................................................................67
         7.14 Collateral Effective Date..........................................................................68
         7.15 Construction.......................................................................................70
         7.16 Acquisitions.......................................................................................70
         7.17 Mortgage Documents.................................................................................70



SECTION 8  NEGATIVE COVENANTS....................................................................................71

                                      ii

         8.1 Indebtedness........................................................................................71
         8.2 Liens...............................................................................................71
         8.3 Nature of Business..................................................................................71
         8.4 Consolidation and Merger............................................................................71
         8.5 Sale or Lease of Assets.............................................................................72
         8.6 Advances, Investments and Loans.....................................................................72
         8.7 Restricted Payments.................................................................................72
         8.8 Transactions with Affiliates........................................................................73
         8.9 Fiscal Year; Organizational Documents...............................................................73
         8.10 Limitations........................................................................................73
         8.11 Other Negative Pledges.............................................................................73
         8.12 Construction and Development.......................................................................73

SECTION 9  EVENTS OF DEFAULT.....................................................................................74
         9.1 Events of Default...................................................................................74
         9.2 Acceleration; Remedies..............................................................................76
         9.3 Allocation of Payments After Event of Default.......................................................77

SECTION 10  AGENCY PROVISIONS....................................................................................78
         10.1 Appointment........................................................................................78
         10.2 Delegation of Duties...............................................................................79
         10.3 Exculpatory Provisions.............................................................................79
         10.4 Reliance on Communications.........................................................................80
         10.5 Notice of Default..................................................................................80
         10.6 Non-Reliance on Administrative Agent and Other Lenders.............................................80
         10.7 Indemnification....................................................................................81
         10.8 Administrative Agent in Its Individual Capacity....................................................81
         10.9 Successor Agent....................................................................................82

SECTION 11  MISCELLANEOUS........................................................................................82
         11.1 Notices............................................................................................82
         11.2 Right of Set-Off...................................................................................82
         11.3 Benefit of Agreement...............................................................................83
         11.4 No Waiver; Remedies Cumulative.....................................................................85
         11.5 Payment of Expenses; Indemnification...............................................................85
         11.6 Amendments, Waivers and Consents...................................................................86
         11.7 Counterparts/Telecopy..............................................................................87
         11.8 Headings...........................................................................................87
         11.9 Defaulting Lender..................................................................................87
         11.10 Survival of Indemnification and Representations and Warranties....................................87
         11.11 Governing Law; Jurisdiction.......................................................................87
         11.12 Waiver of Jury Trial..............................................................................88
         11.13 Time..............................................................................................88
         11.14 Severability......................................................................................88
         11.15 Entirety..........................................................................................88
         11.16 Binding Effect....................................................................................89
         11.17 Confidentiality...................................................................................89
         11.18 Collateral Termination Date.......................................................................90
         11.19 Further Assurances................................................................................90

                                     iii

         11.20 Release of Guarantors.............................................................................91

SCHEDULES

Schedule 1.1(a)       Revolving Loan Commitment Percentages
Schedule 1.1(b)       Project Bell Properties
Schedule 1.1(c)       Excluded Material Subsidiaries
Schedule 2.2(c)       Existing Letters of Credit
Schedule 6.15         Organization Structure/Subsidiaries
Schedule 6.21         Properties
Schedule 7.14         Collateral Representation and Warranty
Schedule 8.2          Existing Liens
Schedule 8.5          Preapproved Transactions
Schedule 11.1         Notices

EXHIBITS

Exhibit 2.1(b)        Form of Notice of Borrowing
Exhibit 2.1(e)        Form of Notice of Continuation/Conversion
Exhibit 2.1(g)        Form of Revolving Loan Note
Exhibit 7.1(c)        Form of Officer's Certificate
Exhibit 7.12          Form of Joinder Agreement
Exhibit 7.17          Form of Mortgage
Exhibit 11.3          Form of Assignment Agreement

iv

SECOND
AMENDED AND RESTATED
CREDIT AGREEMENT

THIS SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this "Credit Agreement") is entered into as of September 28, 1998 among BRANDYWINE REALTY TRUST ("BRT"), a Maryland real estate investment trust and BRANDYWINE OPERATING PARTNERSHIP, L.P. ("BOP"), a Delaware limited partnership (collectively the "Borrowers"), certain Subsidiaries of the Borrowers as Guarantors, the Lenders (as defined herein), NATIONSBANC MONTGOMERY SECURITIES LLC as Lead Arranger and Book Manager and NATIONSBANK, N.A., as Administrative Agent for the Lenders (the "Administrative Agent").

RECITALS

WHEREAS, the Borrowers, certain Subsidiaries of the Borrowers, the Lenders and the Administrative Agent entered into that certain Amended and Restated Credit Agreement, dated as of January 5, 1998, (as previously amended from time to time, and together with all other documents and instruments executed and delivered in connection therewith, the "Existing Credit Agreement");

WHEREAS, the Borrowers desire to amend and restate the Existing Credit Agreement to provide a revolving credit facility in an aggregate amount of up to $550 million;

WHEREAS, the Guarantors have agreed to unconditionally guarantee all the obligations of the Borrowers hereunder; and

WHEREAS, the Lenders party hereto have agreed to make the requested amended and restated revolving credit facility available to the Borrowers on the terms and conditions hereinafter set forth.

NOW, THEREFORE, IN CONSIDERATION of the premises and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:


SECTION 1

DEFINITIONS AND ACCOUNTING TERMS

1.1 Definitions.

As used herein, the following terms shall have the meanings herein specified unless the context otherwise requires. Defined terms herein shall include in the singular number the plural and in the plural the singular:

"Adjusted Base Rate" means the Base Rate plus .25% per annum.

"Adjusted Eurodollar Rate" means the Eurodollar Rate plus the Applicable Percentage.

"Adjusted NOI" means NOI less (a) an annual sum of $.50 per square foot for all Properties and (b) all interest income of the Combined Parties for the applicable period.

"Adjusted Total Assets" means Total Assets less the Project Bell Properties held by Excluded Material Subsidiaries.

"Administrative Agent" means NationsBank, N.A. (or any successor thereto) or any successor administrative agent appointed pursuant to Section 10.9.

"Affiliate" means, with respect to any Person, any other Person directly or indirectly controlling (including but not limited to all directors and officers of such Person), controlled by or under direct or indirect common control with such Person. A Person shall be deemed to control a corporation, partnership, limited liability company or real estate investment trust if such Person possesses, directly or indirectly, the power (i) to vote 10% or more of the securities having ordinary voting power for the election of directors of such corporation, limited liability company or real estate investment trust or to vote 10% or more of the partnership interests of such partnership or (ii) to direct or cause direction of the management and policies of such corporation or partnership, whether through the ownership of voting securities, as managing or general partner, by contract or otherwise.

"Agency Services Address" means NationsBank, N.A., 6610 Rockledge Drive, 6th Floor, Bethesda, Maryland 20817, Attn.: Eleanor Mitchell-Wharton, or such other address as may be identified by written notice from the Administrative Agent to the Borrowers.

"Annualized Adjusted NOI" means Adjusted NOI for the most recent fiscal quarter multiplied times four.

"Annualized Capitalized Adjusted NOI" means Annualized Adjusted NOI divided by the Capitalization Rate.

"Annualized Capitalized Modified Adjusted NOI" means Annualized Modified Adjusted NOI divided by the Capitalization Rate.

2

"Annualized Modified Adjusted NOI" means an amount equal to
(a) Adjusted NOI for the prior fiscal quarter for all Properties owned during such entire fiscal quarter multiplied times four plus
(b) NOI for all Properties acquired during such fiscal quarter multiplied by a fraction equal to 365/the number of days such Property was owned by a Combined Party.

"Applicable Percentage" means:

(a) from the Effective Date until the earlier of
(i) March 31, 1999 or (ii) the date the Leverage Ratio, as of the end of any fiscal quarter of the Credit Parties subsequent to September 30, 1998, is less than or equal to .55 to 1.0, 1.50%.

(b) Commencing on the date of the earlier of (i) March 31, 1999 or (ii) the date the Leverage Ratio, as of the end of any fiscal quarter of the Credit Parties subsequent to September 30, 1998, is less than or equal to .55 to 1.0:

(i) if (A) BRT or BOP does not have an Unsecured Senior Debt Rating, or (B) BRT or BOP has an Unsecured Debt Rating from S&P that is worse than BBB-, or (C) BRT or BOP has an Unsecured Debt Rating from Moody's that is worse than Baa3, the appropriate applicable percentages corresponding to the Leverage Ratio in effect as of the most recent Calculation Date as shown below:

------------------- ------------------ -----------------------------
  Pricing Level          Leverage       Applicable Percentage for
                          Ratio              Eurodollar Loans
------------------- ------------------ -----------------------------
        I              < .20 to 1.0               1.15%
------------------- ------------------ -----------------------------
        II           > .20 to 1.0 but             1.25%
                       < .30 to 1.0
------------------- ------------------ -----------------------------
       III           > .30 to 1.0 but             1.375%
                       < .55 to 1.0
------------------- ------------------ -----------------------------
        IV             > .55 to 1.0               1.75%
------------------- ------------------ -----------------------------

(ii) if (A) BRT or BOP has an Unsecured Senior Debt Rating from either S&P or Moody's (or both), (B) neither
(b)(i)(B) nor (b)(i)(C) above is applicable and (C) the Leverage Ratio is < .55 to 1.0, the appropriate applicable percentages corresponding to the Unsecured Senior Debt Ratings in effect as of the most recent Calculation Date as shown below:

3

----------------- ----------------------- --------------------------
  Pricing Level   Unsecured Senior Debt    Applicable Percentage for
                          Rating                Eurodollar Loans
----------------- ----------------------- --------------------------
        I         BBB or better from                 1.00%
                  S&P, or Baa2 or
                  better from Moody's
                  or both if rated by
                  both Moody's and S&P
----------------- ----------------------- --------------------------
        II        BBB- from S&P or Baa3              1.15%
                  from Moody's or both
                  if rated by both
                  Moody's and S&P
----------------- ----------------------- --------------------------

The Applicable Percentage for Revolving Loans shall be determined and adjusted on the date (each a "Calculation Date") (i) if the Applicable Percentage is determined pursuant to clause (b)(i) above, five Business Days after the date on which the Borrowers provide the officer's certificate in accordance with the provisions of Section 7.1(c); provided that if the Borrowers fail to provide the officer's certificate required by Section 7.1(c) on or before the date required by Section 7.1(c), the Applicable Percentage for Revolving Loans from such date shall be based on Pricing Level III in clause (b)(i) above until such time that an appropriate officer's certificate is provided whereupon the Pricing Level shall be determined by the then current Leverage Ratio or (ii) if the Applicable Percentage is determined pursuant to clause (b)(ii) above, the date BRT or BOP obtains an Unsecured Senior Debt Rating from S&P or Moody's or the date there is a change in the Unsecured Senior Debt Rating of BRT or BOP, in each case after the Borrowers provide written notice and evidence to the Administrative Agent regarding such Unsecured Debt Rating. Each Applicable Percentage shall be effective from one Calculation Date until the next Calculation Date. Any adjustment in the Applicable Percentage shall be applicable only to new Revolving Loans made (and to continuations and conversions of existing Revolving Loans).

The Borrowers shall promptly deliver to the Administrative Agent, at the address set forth on Schedule 11.1 and at the Agency Services Address, information regarding any change in the Unsecured Senior Debt Rating or Leverage Ratio that would change the existing Pricing Level as set forth above.

"Bankruptcy Code" means the Bankruptcy Code in Title 11 of the United States Code, as amended, modified, succeeded or replaced from time to time.

"Base Rate" means, for any day, the rate per annum equal to the greater of (a) the Federal Funds Rate in effect on such day plus 1/2 of 1% or (b) the Prime Rate in effect on such day. Any change in the Base Rate due to a change in the Prime Rate or the Federal Funds Rate shall be effective on the effective date of such change in the Prime Rate or the Federal Funds Rate, respectively.

"Base Rate Loan" means a Loan bearing interest based at a rate determined by reference to the Base Rate.

4

"BOP" means Brandywine Operating Partnership, L.P., a Delaware limited partnership, together with any successors and permitted assigns.

"Borrowers" means BRT and BOP and "Borrower" means either one of them.

"Bridge Facility" means that certain $150 million credit facility, entered into as of the Closing Date, provided by NationsBanc Mortgage Capital Corp. for the benefit of the Borrowers.

"BRT" means Brandywine Realty Trust, a Maryland real estate investment trust, together with any successors and permitted assigns.

"Business Day" means any day other than a Saturday, a Sunday, a legal holiday or a day on which banking institutions are authorized or required by law or other governmental action to close in Bethesda, Maryland, Charlotte, North Carolina or New York, New York; provided that in the case of Eurodollar Loans, such day is also a day on which dealings between banks are carried on in U.S. dollar deposits in the London interbank market.

"Calculation Date" has the meaning set forth in the definition of Applicable Percentage.

"Capital Expenditures" means all expenditures of the Borrowers and their Subsidiaries which, in accordance with GAAP, would be classified as Capital Expenditures, including, without limitation, Capital Leases.

"Capital Lease" means, as applied to any Person, any lease of any property (whether real, personal or mixed) by that Person as lessee which, in accordance with GAAP, is or should be accounted for as a capital lease on the balance sheet of that Person.

"Capitalization Rate" means, as of the Closing Date, 9.5%; however, the Capitalization Rate shall be reviewed annually (but not more often than annually) by the Lenders (beginning with the date one year after the Closing Date) and shall be subject to adjustment by the Required Lenders, in their sole discretion, based upon market conditions for comparable property types; provided that the Capitalization Rate cannot be adjusted by more than 1.25% annually.

"Cash Equivalents" means (a) securities issued or directly and fully guaranteed or insured by the United States of America or any agency or instrumentality thereof (provided that the full faith and credit of the United States of America is pledged in support thereof) having maturities of not more than twelve months from the date of acquisition, (b) U.S. dollar denominated time and demand deposits and certificates of deposit of (i) any Lender or any of its Affiliates, (ii) any domestic commercial bank having capital and surplus in excess of $500,000,000 or (iii) any bank whose short-term commercial paper rating from S&P is at least A-1 or the equivalent thereof or from Moody's is at least P-1 or the equivalent thereof (any such bank being an "Approved Bank"), in each case with maturities of not more than 270 days from the date of acquisition,
(c) commercial paper and variable

5

or fixed rate notes issued by any Approved Bank (or by the parent company thereof) or any variable rate notes issued by, or guaranteed by, any domestic corporation rated A-1 (or the equivalent thereof) or better by S&P or P-1 (or the equivalent thereof) or better by Moody's and maturing within six months of the date of acquisition, (d) repurchase agreements with a bank or trust company (including any of the Lenders) or securities dealer having capital and surplus in excess of $500,000,000 for direct obligations issued by or fully guaranteed by the United States of America in which a Credit Party shall have a perfected first priority security interest (subject to no other Liens) and having, on the date of purchase thereof, a fair market value of at least 100% of the amount of the repurchase obligations and (e) Investments, classified in accordance with GAAP as current assets, in money market investment programs registered under the Investment Company Act of 1940, as amended, which are administered by financial institutions having capital of at least $500,000,000 and the portfolios of which are limited to Investments of the character described in the foregoing subdivisions (a) through (d).

"Change of Control" means any of the following events:

(a) any "person" or "group" (within the meaning of Section 13(d) or 14(d) of the Exchange Act) has become, directly or indirectly, the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the Exchange Act, except that a Person shall be deemed to have "beneficial ownership" of all shares that any such Person has the right to acquire, whether such right is exercisable immediately or only after the passage of time), by way of merger, consolidation or otherwise, of 20% or more of the voting power of BRT on a fully-diluted basis, after giving effect to the conversion and exercise of all outstanding warrants, options and other securities of BRT convertible into or exercisable for voting power of BRT (whether or not such securities are then currently convertible or exercisable); or

(b) BRT fails to directly own at least 75% of the aggregate ownership interests in BOP.

"Closing Date" means the date hereof.

"Code" means the Internal Revenue Code of 1986, as amended, and any successor statute thereto, as interpreted by the rules and regulations issued thereunder, in each case as in effect from time to time. References to sections of the Code shall be construed also to refer to any successor sections.

"Collateral" has the meaning set forth in the Collateral Documents.

"Collateral Documents" means the Pledge Agreements, the Mortgage Documents and such other documents executed and delivered in connection with the attachment and perfection of the Lenders' security interest in the Collateral, including, without limitation UCC financing statements and real estate title insurance policies as necessary; provided that it is understood that such Collateral Documents will be effective only during an appropriate Collateral Period.

6

"Collateral Effective Date" means (a) a Real Estate Collateral Effective Date or (b) a Stock Collateral Effective Date.

"Collateral Period" means the period in time from a Collateral Effective Date until a subsequent Collateral Termination Date.

"Collateral Termination Date" means (a) with respect to the Mortgages, any date after a Real Estate Collateral Effective Date in which (i) the Leverage Ratio has been less than or equal to .55 to 1.0, as of the last day of a fiscal quarter of the Credit Parties, for two consecutive fiscal quarters and (ii) no Default or Event of Default exists, and (b) with respect to the Stock Collateral, any date after a Stock Collateral Effective Date that (i) the Leverage Ratio is less than or equal to .55 to 1.0 as of the last day of a fiscal quarter of the Credit Parties and (ii) no Default or Event of Default exists.

"Commitments" means the commitment of each Lender with respect to the Revolving Committed Amount.

"Combined Parties" means the Credit Parties and their Subsidiaries and all joint ventures or partnerships to which a Credit Party or one of its Subsidiaries is a party.

"Credit Documents" means this Credit Agreement, the Notes, the Collateral Documents and all other related agreements and documents issued or delivered hereunder or thereunder or pursuant hereto or thereto.

"Credit Exposure" has the meaning set forth in the definition of Required Lenders in this Section 1.1.

"Credit Parties" means the Borrowers and the Guarantors and "Credit Party" means any one of them.

"Debt Payments" means, as of the date of determination, for the Combined Parties, the sum of (a) Interest Expense plus (b) all payments of principal and any required prepayments on Funded Debt of the Combined Parties (other than balloon payments), for the applicable period, ending on the date of determination (including the principal component of payments due on Capital Leases during the applicable period ending on the date of determination) plus (c) any letter of credit fees.

"Debt Service Coverage Ratio" means the ratio of (a) Annualized Modified Adjusted NOI to (b) the Market Funded Debt Payments.

"Default" means any event, act or condition which with notice or lapse of time, or both, would constitute an Event of Default.

"Defaulting Lender" means, at any time, any Lender that, (a) has failed to make a Loan or purchase a Participation Interest required pursuant to the terms of this Credit Agreement (but only for so long as such Loan is not made or such Participation Interest is not purchased), (b) has failed to pay to the Administrative Agent or any Lender an amount

7

owed by such Lender pursuant to the terms of this Credit Agreement (but only for so long as such amount has not been repaid) or (c) has been deemed insolvent or has become subject to a bankruptcy or insolvency proceeding or to a receiver, trustee or similar official.

"Dollars" and "$" means dollars in lawful currency of the United States of America.

"Effective Date" means the date, as specified by the Administrative Agent, on which the conditions set forth in Section 5.1 shall have been fulfilled (or waived in the sole discretion of the Lenders) and on which the initial Loans shall have been made and/or the initial Letters of Credit shall have been issued.

"Eligible Assignee" means (a) any Lender or any Affiliate or subsidiary of a Lender and (b) any other commercial bank, financial institution, institutional lender or "accredited investor" (as defined in Regulation D of the Securities and Exchange Commission) with (i) total assets of at least $25 billion, (ii) a long term unsecured debt rating of BBB+ or better from S&P or its equivalent and (iii) an office in the United States. Neither the Borrower nor an Affiliate of the Borrower shall qualify as an Eligible Assignee.

"Environmental Claim" means any investigation, written notice, violation, written demand, written allegation, action, suit, injunction, judgment, order, consent decree, penalty, fine, lien, proceeding, or written claim whether administrative, judicial or private in nature arising (a) pursuant to, or in connection with, an actual or alleged violation of, any Environmental Law, (b) in connection with any Hazardous Material, (c) from any assessment, abatement, removal, remedial, corrective, or other response action in connection with an Environmental Law or other order of a Governmental Authority or (d) from any actual or alleged damage, injury, threat, or harm to health, safety, natural resources, or the environment.

"Environmental Laws" means any current or future legal requirement of any Governmental Authority pertaining to (a) the protection of health, safety, and the indoor or outdoor environment,
(b) the conservation, management, or use of natural resources and wildlife, (c) the protection or use of surface water and groundwater or (d) the management, manufacture, possession, presence, use, generation, transportation, treatment, storage, disposal, release, threatened release, abatement, removal, remediation or handling of, or exposure to, any hazardous or toxic substance or material or (e) pollution (including any release to land surface water and groundwater) and includes, without limitation, the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended by the Superfund Amendments and Reauthorization Act of 1986, 42 USC 9601 et seq., Solid Waste Disposal Act, as amended by the Resource Conservation and Recovery Act of 1976 and Hazardous and Solid Waste Amendment of 1984, 42 USC 6901 et seq., Federal Water Pollution Control Act, as amended by the Clean Water Act of 1977, 33 USC 1251 et seq., Clean Air Act of 1966, as amended, 42 USC 7401 et seq., Toxic Substances Control Act of 1976, 15 USC 2601 et seq., Hazardous Materials Transportation Act, 49 USC App. 1801 et seq., Occupational Safety and Health Act of 1970, as amended, 29 USC 651 et seq., Oil Pollution Act of 1990, 33 USC 2701 et seq., Emergency Planning and Community Right-to-Know Act of 1986, 42 USC 11001 et seq., National Environmental Policy Act of 1969, 42 USC 4321 et seq., Safe Drinking Water Act of 1974, as amended, 42 USC 300(f) et seq., any analogous implementing or successor law, and any amendment, rule, regulation, order, or directive issued thereunder.

8

"Equity Issuance" means any issuance by a Credit Party to any Person (other than another Credit Party) of shares of its capital stock, common shares of beneficial interest or other equity interests, including pursuant to the exercise of options or warrants or pursuant to the conversion of any debt securities to equity; provided that the definition of Equity Issuance as used herein shall not include (a) issuances of equity to employees of a Credit Party to the extent such issuances do not exceed $1,000,000 in any one instance or $5,000,000, in the aggregate, during the term of this Credit Agreement or (b) issuances of common stock for the sole purpose of conversion or redemption of convertible preferred stock or perpetual preferred stock.

"ERISA" means the Employee Retirement Income Security Act of 1974, as amended, and any successor statute thereto, as interpreted by the rules and regulations thereunder, all as the same may be in effect from time to time. References to sections of ERISA shall be construed also to refer to any successor sections.

"ERISA Affiliate" means an entity, whether or not incorporated, which is under common control with a Borrower or any of its Subsidiaries within the meaning of Section 4001(a)(14) of ERISA, or is a member of a group which includes a Borrower and which is treated as a single employer under Sections 414(b) or (c) of the Code.

"ERISA Event" means (i) with respect to any Plan, the occurrence of a Reportable Event or the substantial cessation of operations (within the meaning of Section 4062(e) of ERISA); (ii) the withdrawal of a Borrower, any Subsidiary of a Borrower or any ERISA Affiliate from a Multiple Employer Plan during a plan year in which it was a substantial employer (as such term is defined in Section 4001(a)(2) of ERISA), or the termination of a Multiple Employer Plan;
(iii) the distribution of a notice of intent to terminate or the actual termination of a Plan pursuant to Section 4041(a)(2) or 4041A of ERISA; (iv) the institution of proceedings to terminate or the actual termination of a Plan by the PBGC under Section 4042 of ERISA;
(v) any event or condition which might constitute grounds under
Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan; (vi) the complete or partial withdrawal of a Borrower, any Subsidiary of a Borrower or any ERISA Affiliate from a Multiemployer Plan; (vii) the conditions for imposition of a lien under Section 302(f) of ERISA exist with respect to any Plan; or (viii) the adoption of an amendment to any Plan requiring the provision of security to such Plan pursuant to Section 307 of ERISA.

"Eurodollar Loan" means a Loan bearing interest based at a rate determined by reference to the Adjusted Eurodollar Rate.

"Eurodollar Rate" means, for the Interest Period for each Eurodollar Loan comprising part of the same borrowing (including conversions, extensions and renewals), a per annum interest rate determined pursuant to the following formula:

9

Eurodollar Rate = London Interbank Offered Rate


1 - Eurodollar Reserve Percentage

"Eurodollar Reserve Percentage" means, for any day, that percentage (expressed as a decimal) which is in effect from time to time under Regulation D of the Board of Governors of the Federal Reserve System (or any successor), as such regulation may be amended from time to time, or any successor regulation, as the maximum reserve requirement (including, without limitation, any basic, supplemental, emergency, special, or marginal reserves) applicable with respect to Eurodollar liabilities as that term is defined in Regulation D (or against any other category of liabilities that includes deposits by reference to which the interest rate of Eurodollar Loans is determined) with respect to member banks of the Federal Reserve System, whether or not any Lender has any Eurodollar liabilities subject to such reserve requirement at that time. Eurodollar Loans shall be deemed to constitute Eurodollar liabilities and as such shall be deemed subject to reserve requirements without benefits of credits for proration, exceptions or offsets that may be available from time to time to a Lender. The Adjusted Eurodollar Rate shall be adjusted automatically on and as of the effective date of any change in the Eurodollar Reserve Percentage.

"Event of Default" means any of the events or circumstances described in Section 9.1.

"Exchange Act" means the Securities Exchange Act of 1934, as amended, modified, succeeded or replaced from time to time, and the rules and regulations promulgated thereunder.

"Excluded Material Subsidiaries" means the Material Subsidiaries set forth on Schedule 1.1(c).

"Existing Bridge Facility" means that certain Promissory Note, dated May 7, 1998, executed by the Borrowers in favor of NationsBank, N.A., in the face amount of $150 million, and all documents and instruments executed and delivered in connection therewith.

"Existing Credit Agreement" has the meaning set forth in the Recitals hereto.

"Existing Letters of Credit" means the letters of credit described on Schedule 2.2(c).

"Extension of Credit" means, as to any Lender, the making of a Loan by such Lender (or a participation therein by a Lender) or the issuance of, or participation in, a Letter of Credit by such Lender.

"Federal Funds Rate" means, for any day, the rate per annum (rounded upward, if necessary, to the nearest 1/100th of 1%) equal to the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the Business Day next succeeding such day; provided that (a) if such day is not a Business Day, the Federal Funds Rate for such day shall be such rate on such transactions on the next preceding Business Day and (b) if no such rate is so published on such next preceding Business Day, the Federal Funds Rate for such day shall be the average rate quoted to the Administrative Agent on such day on such transactions as determined by the Administrative Agent.

10

"Fee Letter" means that certain letter agreement, dated as of July 30, 1998, between the Administrative Agent and BRT, as amended, modified, supplemented or replaced from time to time.

"Fixed Charge Coverage Ratio" means, for any period, the ratio of (a) Adjusted NOI for such period to (b) the sum of Debt Payments for such period plus all dividends on preferred stock for such period plus Letter of Credit Fees payable pursuant to Section 3.4(b)(i) for such period.

"Funded Debt" means, without duplication, the sum of (a) all Indebtedness of the Combined Parties for borrowed money, (b) all purchase money Indebtedness of the Combined Parties, (c) the principal portion of all obligations of the Combined Parties under Capital Leases, (d) all obligations, contingent or otherwise, relative to the face amount of all letters of credit (other than letters of credit supporting trade payables in the ordinary course of business), whether or not drawn, and banker's acceptances issued for the account of a Combined Party (it being understood that, to the extent an undrawn letter of credit supports another obligation consisting of Indebtedness, in calculating aggregated Funded Debt only such other obligation shall be included), (e) all Guaranty Obligations of the Combined Parties with respect to Funded Debt of another Person, (f) all Funded Debt of another entity secured by a Lien on any property of the Combined Parties whether or not such Funded Debt has been assumed by a Combined Party, (g) all Funded Debt of any partnership or unincorporated joint venture to the extent a Combined Party is legally obligated or has a reasonable expectation of being liable with respect thereto, net of any assets of such partnership or joint venture, (h) the principal balance outstanding under any synthetic lease, tax retention operating lease, off-balance sheet loan or similar off-balance sheet financing product of a Combined Party where such transaction is considered borrowed money indebtedness for tax purposes but is classified as an operating lease in accordance with GAAP, (i) all obligations of the Combined Parties in respect of interest rate protection agreements, foreign currency exchange agreements or other interest or exchange rate or commodity price hedging agreements and (j) all take out loan commitments to the extent such take out commitment is not supported by a financial commitment from a third party containing standard terms and conditions. The calculation of Funded Debt of the Combined Parties shall be subject to Section 1.4.

"Funds From Operations", when used with respect to any Person, shall have the meaning given to such term in, and shall be calculated in accordance with, standards promulgated by the National Association of Real Estate Investment Trusts in effect from time to time.

"GAAP" means generally accepted accounting principles in the United States applied on a consistent basis and subject to Section 1.3.

11

"Governmental Authority" means any Federal, state, local or provincial court or governmental agency, authority, instrumentality or regulatory body.

"Guarantors" means (a) the Material Subsidiaries of the Borrowers, as of the Closing Date, other than the Excluded Material Subsidiaries and (b) such other Persons who may from time to time execute a Joinder Agreement (or otherwise consent in writing to becoming a Guarantor hereunder), as required by Section 7.12 or otherwise, in each case together with their successors and assigns.

"Guaranty Obligations" means, with respect to any Person, without duplication, any obligations (other than endorsements in the ordinary course of business of negotiable instruments for deposit or collection) guaranteeing or intended to guarantee any Indebtedness of any other Person in any manner, whether direct or indirect, and including without limitation any obligation, whether or not contingent, (a) to purchase any such Indebtedness or other obligation or any property constituting security therefor, (b) to advance or provide funds or other support for the payment or purchase of such indebtedness or obligation or to maintain working capital, solvency or other balance sheet condition of such other Person (including, without limitation, maintenance agreements, comfort letters, take or pay arrangements, put agreements or similar agreements or arrangements) for the benefit of the holder of Indebtedness of such other Person, (c) to lease or purchase property, securities or services primarily for the purpose of assuring the owner of such Indebtedness or (d) to otherwise assure or hold harmless the owner of such Indebtedness or obligation against loss in respect thereof. The amount of any Guaranty Obligation hereunder shall (subject to any limitations set forth therein) be deemed to be an amount equal to the outstanding principal amount (or maximum principal amount, if larger) of the Indebtedness in respect of which such Guaranty Obligation is made.

"Hazardous Materials" means any substance, material or waste defined or regulated in or under any Environmental Laws.

"Incentive Stock Plan" means the BRT 1997 Long-Term Incentive Plan, as amended from time to time, and any other equity incentive plan hereafter established by BRT pursuant to which awards of equity interests in BRT may be made to employees of BRT or a Subsidiary.

"Indebtedness" of any Person means, without duplication, (a) all obligations of such Person for borrowed money, (b) all obligations of such Person evidenced by bonds, debentures, notes or similar instruments, or upon which interest payments are customarily made (c) all obligations of such Person under conditional sale or other title retention agreements relating to property purchased by such Person to the extent of the value of such property (other than customary reservations or retentions of title under agreements with suppliers entered into in the ordinary course of business), (d) all obligations, other than intercompany items, of such Person issued or assumed as the deferred purchase price of property or services purchased by such Person which would appear as liabilities on a balance sheet of such Person, (e) all Indebtedness of others secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on, or payable out of the proceeds of production from, property owned or acquired

12

by such Person, whether or not the obligations secured thereby have been assumed, (f) all Guaranty Obligations of such Person, (g) the principal portion of all obligations of such Person under (i) Capital Leases and (ii) any synthetic lease, tax retention operating lease, off-balance sheet loan or similar off-balance sheet financing product of such Person where such transaction is considered borrowed money indebtedness for tax purposes but is classified as an operating lease in accordance with GAAP, (h) all obligations of such Person in respect of interest rate protection agreements, foreign currency exchange agreements, or other interest or exchange rate or commodity price hedging agreements, (i) the maximum amount of all performance and standby letters of credit issued or bankers' acceptances facilities created for the account of such Person and, without duplication, all drafts drawn thereunder (to the extent unreimbursed), (j) all preferred stock issued by such Person and required by the terms thereof to be redeemed, or for which mandatory sinking fund payments are due, by a fixed date; provided that Indebtedness shall not include outstanding convertible preferred stock which carries a defined term if its conversion or redemption occurs solely through the issuance of additional equity or from the proceeds of an equity offering, (k) all obligations evidenced by take out commitments, (l) the aggregate amount of uncollected accounts receivables of such Person subject at such time to a sale of receivables (or similar transaction) regardless of whether such transaction is effected without recourse to such Person or in a manner that would not be reflected on the balance sheet of such Person in accordance with GAAP and (m) all obligations of such Person to repurchase any securities which repurchase obligation is related to the issuance thereof, including, without limitation, obligations commonly known as residual equity appreciation potential shares. Subject to the terms of Section 1.4, the Indebtedness of any Person shall include the Indebtedness of any partnership or unincorporated joint venture in which such Person is legally obligated or has a reasonable expectation of being liable with respect thereto.

"Initial Revolving Loan Maturity Date" means September 30, 2001.

"Interest Coverage Ratio" means, for any period, the ratio of (a) Adjusted NOI for such period to (b) Interest Expense for such period.

"Interest Expense" means, for any period, with respect to the Credit Parties and their Subsidiaries on a consolidated basis, all net interest expense, whether paid or accrued (including that portion applicable to Capital Leases in accordance with GAAP) plus capitalized interest.

"Interest Payment Date" means (a) as to Base Rate Loans, the last Business Day of each month and the Revolving Loan Maturity Date,
(b) as to Eurodollar Loans, the last day of the applicable Interest Period and the Revolving Loan Maturity Date.

"Interest Period" means, as to Eurodollar Loans, a period of one, two, three or six months' duration as the Borrowers may elect, commencing, in each case, on the date of the borrowing (including continuations and conversions thereof); provided, however, (a) if any Interest Period would end on a day which is not a Business Day, such Interest Period shall be extended to the next succeeding Business Day (except that where the next succeeding Business Day falls in the next succeeding calendar month, then on the next preceding Business Day),
(b) no Interest Period shall extend beyond the Revolving Loan Maturity Date, (c) where an Interest Period begins on a day for which there is no numerically corresponding day in the calendar month in which the Interest Period is to end, such Interest Period shall end on the last Business Day of such calendar month, and (d) no Interest Period shall extend beyond the Initial Revolving Loan Maturity Date unless the Revolving Loan Maturity Date has been extended pursuant to
Section 3.5(b).

13

"Investment" in any Person means (a) the acquisition (whether for cash, property, services, assumption of Indebtedness, securities or otherwise) of assets, shares of capital stock, bonds, notes, debentures, partnership, joint ventures or other ownership interests or other securities of such other Person or (b) any deposit with, or advance, loan or other extension of credit to, such Person (other than deposits made in connection with the purchase of equipment or other assets in the ordinary course of business) or (c) any other capital contribution to or investment in such Person, including, without limitation, any Guaranty Obligation (including any support for a letter of credit issued on behalf of such Person) incurred for the benefit of such Person.

"Issuing Lender" means NationsBank, N.A., any successor Administrative Agent or any other Lender designated by the Administrative Agent.

"Issuing Lender Fees" has the meaning set forth in Section 3.4(b)(ii).

"Joinder Agreement" means a Joinder Agreement substantially in the form of Exhibit 7.12.

"Lender" means any of the Persons identified as a "Lender" on the signature pages hereto, and any Person which may become a Lender by way of assignment in accordance with the terms hereof, together with their successors and permitted assigns.

"Letter of Credit" means a letter of credit issued for the account of a Borrower by the Issuing Lender pursuant to Section 2.2 or any Existing Letter of Credit, as such letter of credit may be amended, modified, extended, renewed or replaced.

"Letter of Credit Fees" has the meaning set forth in Section 3.4(b)(i).

"Leverage Ratio" means the ratio of (a) Funded Debt to (b) the sum of Annualized Capitalized Modified Adjusted NOI plus all unrestricted cash of the Combined Parties plus all Cash Equivalents of the Combined Parties plus all tenant security deposits held by the Combined Parties plus all amounts invested by the Combined Parties in construction-in-process plus all mortgage note receivables of the Combined Parties plus all net cash investments in opportunity funds of the Combined Parties.

"Lien" means any mortgage, pledge, hypothecation, assignment, deposit arrangement, security interest, encumbrance, lien (statutory or otherwise), preference, priority or charge of any kind, including, without limitation, any agreement to give any of the foregoing, any conditional sale or other title retention agreement, and any lease in the nature thereof.

14

"Loan" or "Loans" means the Revolving Loans (or a portion of any Revolving Loan), individually or collectively, as appropriate.

"LOC Documents" means, with respect to any Letter of Credit, such Letter of Credit, any amendments thereto, any documents delivered in connection therewith, any application therefor, and any agreements, instruments, guarantees or other documents (whether general in application or applicable only to such Letter of Credit) governing or providing for (a) the rights and obligations of the parties concerned or at risk or (b) any collateral security for such obligations.

"LOC Obligations" means, at any time, the sum of (a) the maximum amount which is, or at any time thereafter may become, available to be drawn under Letters of Credit then outstanding, assuming compliance with all requirements for drawings referred to in such Letters of Credit plus (b) the aggregate amount of all drawings under Letters of Credit honored by an Issuing Lender but not theretofore reimbursed.

"LOC Participants" means the Lenders.

"London Interbank Offered Rate" means, for any Eurodollar Loan for any Interest Period therefor, the rate per annum (rounded upwards, if necessary, to the nearest 1/16 of 1%) appearing on Telerate Page 3750 (or any successor page) as the London interbank offered rate for deposits in Dollars at approximately 11:00 a.m. (London time) two Business Days prior to the first day of such Interest Period for a term comparable to such Interest Period; provided, however, if more than one rate is specified on Telerate Page 3750, the applicable rate shall be the arithmetic mean of all such rates. If for any reason such rate is not available, the term "London Interbank Offered Rate" shall mean, for any Eurodollar Loan for any Interest Period therefor, the rate per annum (rounded upwards, if necessary, to the nearest 1/16 of 1%) appearing on Reuters Screen LIBO Page as the London interbank offered rate for deposits in Dollars at approximately 11:00 a.m. (London time) two Business Days prior to the first day of such Interest Period for a term comparable to such Interest Period; provided, however, if more than one rate is specified on Reuters Screen LIBO Page, the applicable rate shall be the arithmetic mean of all such rates.

"Mandatory Borrowing" has the meaning set forth in Section 2.2(e).

"Market Funded Debt Payments" means the scheduled debt payments that would have been due during a twelve month period with respect to the Funded Debt of the Combined Parties as of the last day of the prior fiscal quarter assuming a principal mortgage amortization of 25 years and assuming the Market Interest Rate as in effect on the date that the Market Funded Debt Payments are calculated.

"Market Interest Rate" means an interest rate equal to the greater of (a) the prior 30 day average of the most recent seven year U.S. Treasury Note plus 2.00% per annum or (b) 8.50% per annum.

"Material Adverse Effect" means a material adverse effect on
(a) the business, assets, operations, condition (financial or otherwise) or prospects of a Combined Party, (b) the ability of a Credit Party to perform its respective obligations under this Credit Agreement or any of the other Credit Documents, or (c) the validity or enforceability of this Credit Agreement, any of the other Credit Documents, or the rights and remedies of the Lenders hereunder or thereunder taken as a whole.

15

"Material Subsidiary" means a Subsidiary of a Credit Party in which such Credit Party owns, directly or indirectly, more than 65% of the capital stock, partnership interests or other equity interests.

"Moody's" means Moody's Investors Service, Inc., or any successor or assignee of the business of such company in the business of rating securities.

"Mortgages" has the meaning set forth in Section 7.17.

"Multiemployer Plan" means a Plan which is a multiemployer plan as defined in Sections 3(37) or 4001(a)(3) of ERISA.

"Multiple Employer Plan" means a Plan (other than a Multiemployer Plan) in which a Credit Party or any ERISA Affiliate and at least one employer other than a Credit Party or any ERISA Affiliate are contributing sponsors.

"Net Cash Proceeds" means the gross cash proceeds received from an Equity Issuance net of actual transaction costs payable to third parties.

"Net Income" means, for any period, the net income for such period of the Combined Parties, as determined in accordance with GAAP.

"Net Worth" means, as of any date, the net worth of Credit Parties and their Subsidiaries on a consolidated basis, as determined in accordance with GAAP.

"NMS" means NationsBanc Montgomery Securities LLC or any successor thereto.

"NOI" means an amount equal to (a) Net Income for such period (excluding the effect of any extraordinary or other non recurring gains or losses or other non cash losses outside the ordinary course of business) plus (b) an amount which in the determination of Net Income for such period has been deducted for (i) proceeds to minority interests, (ii) income taxes, (iii) depreciation and amortization and (iv) Interest Expense, less (c) to the extent not previously deducted in calculating Net Income for such period, the greater of (i) actual management fee expenditures of the Combined Parties or (ii) 3% of the total real estate revenue of the Combined Parties.

"Non-Excluded Taxes" has the meaning set forth in Section 3.13.

"Note" or "Notes" means the Revolving Loan Notes, individually or collectively, as appropriate.

16

"Notice of Borrowing" means a request by the Borrowers for a Revolving Loan, in the form of Exhibit 2.1(b).

"Notice of Continuation/Conversion" means a request by the Borrowers to continue an existing Eurodollar Loan to a new Interest Period or to convert a Eurodollar Loan to a Base Rate Loan or to convert a Base Rate Loan to a Eurodollar Loan, in the form of Exhibit 2.1(e).

"Obligations" means, without duplication, all of the obligations of the Credit Parties to the Lenders and the Administrative Agent, whenever arising, under this Credit Agreement, the Notes, the Collateral Documents, or any of the other Credit Documents to which a Credit Party is a party.

"Participation Interest" means the Extension of Credit by a Lender by way of a purchase of a participation in any Loans as provided in Section 3.8 or in any Letters of Credit or LOC Obligations as provided in Section 2.2.

"PBGC" means the Pension Benefit Guaranty Corporation established pursuant to Subtitle A of Title IV of ERISA and any successor thereof.

"Permitted Investments" means Investments which are (a) cash or Cash Equivalents, (b) accounts receivable created, acquired or made in the ordinary course of business and payable or dischargeable in accordance with customary trade terms, (c) Investments by one Credit Party in another Credit Party, (d) the acquisition of new Properties; provided that the Credit Parties may not invest in undeveloped land in excess of 5% of Total Assets, in the aggregate, except for such undeveloped land that is adjacent to or contiguous with other assets being acquired or assets already owned or such land is part of a construction project approved by the Required Lenders, has all necessary local permits and approvals and construction will commence within six months of acquisition, (e) earnest money and similar deposits in respect of Properties made in the ordinary course of business, (f) Investments, as of the Effective Date, in the Subsidiaries of the Credit Parties that own the Project Bell Properties; provided that no additional Investments in such Subsidiaries may occur after the Effective Date except as permitted by clauses (g) and (h) below, (g) in addition to the Investments in clause (f) above, Investments in Subsidiaries which are not Credit Parties and Investments in joint ventures (whether or not Subsidiaries) not to exceed, in the aggregate at any one time, 15% of Adjusted Total Assets, (h) Investments not otherwise described in or covered by the other subclauses of this definition (including, without limitation, Investments in Persons that are not Subsidiaries or joint ventures (whether or not Subsidiaries)), loans to officers, directors and employees and repurchases of its capital stock (including the repurchase of stock that is retired, cancelled or terminated) or other ownership interests (including options, warrants and stock appreciation rights) by a Borrower or any Subsidiary); provided that (i) such Investments do not exceed, in the aggregate at any one time, 10% of Adjusted Total Assets and (ii) such Investments, together with the Investments referred to in the previous subclause
(g), do not exceed (in the aggregate at any one time) 20% of Adjusted Total Assets.

17

"Permitted Liens" means (a) Liens securing Obligations, (b) Liens for taxes not yet due or Liens for taxes being contested in good faith by appropriate proceedings for which adequate reserves determined in accordance with GAAP have been established (and as to which the property subject to any such Lien is not yet subject to foreclosure, sale or loss on account thereof), (c) Liens in respect of property imposed by law arising in the ordinary course of business such as materialmens', mechanics', warehousemens', carriers', landlords' and other nonconsensual statutory Liens which are not yet due and payable or which are being contested in good faith by appropriate proceedings for which adequate reserves determined in accordance with GAAP have been established (and as to which the property subject to any such Lien is not yet subject to foreclosure, sale or loss on account thereof); (d) Liens arising from good faith deposits in connection with or to secure performance of tenders, bids, leases, government contracts, performance and return-of-money bonds and other similar obligations incurred in the ordinary course of business (other than obligations in respect of the payment of borrowed money), (e) Liens arising from good faith deposits in connection with or to secure performance of statutory obligations and surety and appeal bonds, (f) easements, rights-of-way, restrictions (including zoning restrictions), matters of plat, minor defects or irregularities in title and other similar charges or encumbrances not, in any material respect, impairing the use of the encumbered property for its intended purposes, (g) judgment Liens that would not constitute an Event of Default, (h) Liens arising by virtue of any statutory or common law provision relating to bankers' liens, rights of setoff or similar rights as to deposit accounts or other funds maintained with a creditor depository institution, (i) Liens on Properties as indicated on Schedule 8.5 if such Lien is incurred on or before March 31, 1999, (j) Liens in connection with Indebtedness permitted by Section 8.1(d); provided that if such Lien is created with respect to a Property that was previously unencumbered (other than such Liens permitted pursuant to clause (i) above), (A) the Borrowers shall give the Administrative Agent prior written notice of the creation of such Lien and (B) after giving effect to such Lien,
(x) the Credit Parties shall be in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (y) no Default or Event of Default shall exist (and the Borrowers shall deliver a certificate to that effect) and (k) Liens existing on the date hereof and identified on Schedule 8.2; provided that no such Lien shall extend to any property other than the property subject thereto on the Closing Date.

"Person" means any individual, partnership, joint venture, firm, corporation, limited liability company, association, trust or other enterprise (whether or not incorporated), or any Governmental Authority.

"Plan" means any employee benefit plan (as defined in
Section 3(3) of ERISA) which is covered by ERISA and with respect to which a Borrower or any ERISA Affiliate is (or, if such plan were terminated at such time, would under Section 4069 of ERISA be deemed to be) an "employer" within the meaning of Section 3(5) of ERISA.

"Pledge Agreements" means any Pledge Agreement executed and delivered by a Credit Party in favor of the Administrative Agent, for the benefit of the Lenders, to secure its obligations under the Credit Documents, as amended, modified, extended, renewed or replaced from time to time; provided that it is understood that the Pledge Agreements will be effective only during a Collateral Period.

18

"Prime Rate" means the per annum rate of interest established from time to time by the Administrative Agent at its principal office in Charlotte, North Carolina (or such other principal office of the Administrative Agent as communicated in writing to the Borrowers and the Lenders) as its Prime Rate. Any change in the interest rate resulting from a change in the Prime Rate shall become effective as of 12:01 a.m. of the Business Day on which each change in the Prime Rate is announced by the Administrative Agent. The Prime Rate is a reference rate used by the Administrative Agent in determining interest rates on certain loans and is not intended to be the lowest rate of interest charged on any extension of credit to any debtor.

"Pro Forma Basis" means with respect to (a) the sale of a Property or the sale of an equity interest in a Credit Party or (b) the creation of a Lien on a Property, that such sale or creation of Lien shall be deemed to have occurred as of the first day of the four fiscal quarter period ending as of the last day of the most recent fiscal quarter for which the Lenders have received the financial information required by Section 7.1(b).

"Project Bell Properties" means the Properties set forth on Schedule 1.1(b).

"Properties" means all real properties owned by the Credit Parties and their Subsidiaries whether directly or through a joint venture investment.

"Real Estate Collateral Effective Date" means the date the financial information required by Section 7.1(c), for the quarterly period ending March 31, 1999, is delivered by the Borrowers to the Administrative Agent, if the Leverage Ratio, as of March 31, 1999, is greater than .55 to 1.0, unless all of the Lenders agree in writing that a Real Estate Collateral Effective Date shall not occur; provided that the Real Estate Collateral Effective Date shall occur automatically on May 15, 1999 if the Borrowers do not deliver such financial information regarding the Leverage Ratio, as of March 31, 1999, on or before May 15, 1999.

"Regulation D, U, or X" means Regulation D, U or X, respectively, of the Board of Governors of the Federal Reserve System as from time to time in effect and any successor to all or a portion thereof.

"REIT" means a real estate investment trust as defined in Sections 856-860 of the Code.

"Reportable Event" means any of the events set forth in
Section 4043(c) of ERISA, other than those events as to which the notice requirement has been waived by regulation.

"Required Lenders" means the Administrative Agent together with the Lenders whose aggregate Credit Exposure (as hereinafter defined) constitutes at least 66 2/3% of the Credit Exposure of all Lenders at such time; provided, however, that if any Lender shall be a Defaulting Lender at such time then there shall be excluded from the determination of Required Lenders the aggregate principal amount of Credit Exposure of such Lender at such time. For purposes of the preceding sentence, the term "Credit Exposure" as applied to each Lender shall mean (a) at any time prior to the termination of the Commitments, the sum of the Revolving Loan Commitment Percentage of such Lender multiplied by the Revolving Committed Amount and (b) at any time after the termination of the Commitments, the sum of (i) the principal balance of the outstanding Loans of such Lender plus (ii) such Lender's Participation Interests in the face amount of the outstanding Letters of Credit.

19

"Requirement of Law" means, as to any Person, the articles or certificate of incorporation and by-laws or other organizational or governing documents of such Person, and any law, treaty, rule or regulation or final, non-appealable determination of an arbitrator or a court or other Governmental Authority, in each case applicable to or binding upon such Person or to which any of its material property is subject.

"Revolving Committed Amount" means FIVE HUNDRED FIFTY
MILLION DOLLARS ($550,000,000).

"Revolving Loan Commitment Percentage" means, for each Lender, the percentage identified as its Revolving Loan Commitment Percentage on Schedule 1.1(a), as such percentage may be modified in connection with any assignment made in accordance with the provisions of Section 11.3.

"Revolving Loan Maturity Date" means the Initial Revolving Loan Maturity Date or, if extended by the Borrowers pursuant to
Section 3.5(b), September 30, 2002.

"Revolving Loans" means the Revolving Loans made to the Borrowers pursuant to Section 2.1.

"Revolving Note" or "Revolving Notes" means the promissory notes of the Borrowers in favor of each of the Lenders evidencing the Revolving Loans provided pursuant to Section 2.1, individually or collectively, as appropriate, as such promissory notes may be amended, modified, supplemented, extended, renewed or replaced from time to time and as evidenced in the form of Exhibit 2.1(g).

"S&P" means Standard & Poor's Ratings Group, a division of McGraw Hill, Inc., or any successor or assignee of the business of such division in the business of rating securities.

"Secured Debt" means all Funded Debt of the Combined Parties that is subject to a Lien in favor of the creditor holding such Funded Debt; provided that any Funded Debt owed to the Lenders hereunder shall be considered to be Unsecured Debt even if a Lien has been granted in favor of the Lenders.

"Secured Debt Ratio" means the ratio of (a) Secured Debt to
(b) Annualized Capitalized Modified Adjusted NOI plus, to the extent Secured Debt includes Funded Debt on construction-in-process, total construction costs with respect to such construction-in-process.

20

"Securities Act" means the Securities Act of 1933, as amended, modified, succeeded or replaced from time to time, and the rules and regulations promulgated thereunder.

"Single Employer Plan" means any Plan which is covered by Title IV of ERISA, but which is not a Multiemployer Plan or a Multiple Employer Plan.

"Solvent" means, with respect to any Person as of a particular date, that on such date (a) such Person is able to pay its debts and other liabilities, contingent obligations and other commitments as they mature in the normal course of business, (b) such Person does not intend to, and does not believe that it will, incur debts or liabilities beyond such Person's ability to pay as such debts and liabilities mature in their ordinary course, (c) such Person is not engaged in a business or a transaction, and is not about to engage in a business or a transaction, for which such Person's assets would constitute unreasonably small capital after giving due consideration to the prevailing practice in the industry in which such Person is engaged or is to engage, (d) the fair value of the assets of such Person is greater than the total amount of liabilities, including, without limitation, contingent liabilities, of such Person and (e) the present fair saleable value of the assets of such Person is not less than the amount that will be required to pay the probable liability of such Person on its debts as they become absolute and matured. In computing the amount of contingent liabilities at any time, it is intended that such liabilities will be computed at the amount which, in light of all the facts and circumstances existing at such time, represents the amount that can reasonably be expected to become an actual or matured liability.

"Stock Collateral" means the Collateral set forth in the Pledge Agreements.

"Stock Collateral Effective Date" means, if the Obligations are not secured at that time by the Mortgages, (a) any date subsequent to March 30, 1999 that the Leverage Ratio is greater than .55 to 1.0 or (b) any date that there is a breach of any of the covenants set forth in Section 7.2; provided that, in each case, a Stock Collateral Effective Date shall not have been deemed to occur unless (x) the Required Lenders agree that a Stock Collateral Effective Date shall occur and (y) the Agent provides written notification to the Borrowers in accordance with Section 11.1 that a Stock Collateral Effective Date has occurred.

"Subsidiary" means, as to any Person, (a) any corporation more than 50% of whose stock of any class or classes having by the terms thereof ordinary voting power to elect a majority of the directors of such corporation (irrespective of whether or not at the time, any class or classes of such corporation shall have or might have voting power by reason of the happening of any contingency) is at the time owned by such Person directly or indirectly through Subsidiaries, and (b) any partnership, association, joint venture, limited liability company, trust or other entity in which such Person directly or indirectly through Subsidiaries has more than a 50% equity interest at any time.

"Termination Event" means (a) with respect to any Single Employer Plan, the occurrence of a Reportable Event or the substantial cessation of operations (within the meaning of Section 4062(e) of ERISA); (b) the withdrawal of any Credit Party or any of its Subsidiaries or any ERISA Affiliate from a Multiple Employer Plan during a plan year in which it was a substantial employer (as such term is defined in Section 4001(a)(2) of ERISA), or the termination of a Multiple Employer Plan; (c) the distribution of a notice of intent to terminate or the actual termination of a Plan pursuant to
Section 4041(a)(2) or 4041A of ERISA; (d) the institution of proceedings to terminate or the actual termination of a Plan by the PBGC under Section 4042 of ERISA; (e) any event or condition which might reasonably constitute grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan; or (f) the complete or partial withdrawal of any Credit Party or any of its Subsidiaries or any ERISA Affiliate from a Multiemployer Plan.

21

"Total Assets" means all assets of the Credit Parties and their Subsidiaries on a consolidated basis, as determined in accordance with GAAP.

"Unencumbered Cash Flow Ratio" means the ratio of (a) Annualized Modified Adjusted NOI with respect to Unsecured Properties to (b) Market Funded Debt Payments on Unsecured Debt.

"Unsecured Debt" means the sum of all Funded Debt of the Combined Parties that was incurred, and continues to be outstanding, without granting a Lien to the creditor holding such Funded Debt; provided that all Funded Debt of the Combined Parties owing to the Lenders under this Credit Agreement shall be considered to be Unsecured Debt even if a Lien has been granted in favor of the Lenders.

"Unsecured Debt Ratio" means the ratio of (a) Annualized Capitalized Modified Adjusted NOI with respect to all Unsecured Properties to (b) Unsecured Debt.

"Unsecured Properties" means all Properties that are not subject to a Lien other than (a) nonconsensual Permitted Liens and
(b) Liens in favor of the Lenders.

"Unsecured Senior Debt Rating" means a debt rating provided by S&P or Moody's with respect to the unsecured senior long term debt of BRT or BOP.

"Unused Commitment" means, for any period, the amount by which (a) the then applicable aggregate Revolving Committed Amount exceeds (b) the daily average sum for such period of the outstanding aggregate principal amount of all Revolving Loans plus the aggregate amount of LOC Obligations outstanding.

"Unused Fees" means the fees payable to the Lenders pursuant to Section 3.4(a).

"Year 2000 Problem" means any risk that any computer hardware, software or other equipment used by a Credit Party or any of its Subsidiaries (or by any of its suppliers or vendors that is material to its business) will not function as effectively and reliably on and after January 1, 2000 as it does prior to January 1, 2000, to the extent such risk would cause or be reasonably expected to cause a Material Adverse Effect.

22

1.2 Computation of Time Periods and Other Definition Provisions.

For purposes of computation of periods of time hereunder, the word "from" means "from and including" and the words "to" and "until" each mean "to but excluding." References in this Credit Agreement to "Articles", "Sections", "Schedules" or "Exhibits" shall be to Articles, Sections, Schedules or Exhibits of or to this Credit Agreement unless otherwise specifically provided.

1.3 Accounting Terms.

Except as otherwise expressly provided herein, all accounting terms used herein shall be interpreted, and all financial statements and certificates and reports as to financial matters required to be delivered to the Lenders hereunder shall be prepared, in accordance with GAAP applied on a consistent basis. All financial statements delivered to the Lenders hereunder shall be accompanied by a statement from the Borrowers that GAAP has not changed since the most recent financial statements delivered by the Borrowers to the Lenders or if GAAP has changed describing such changes in detail and explaining how such changes affect the financial statements. All calculations made for the purposes of determining compliance with this Credit Agreement shall (except as otherwise expressly provided herein) be made by application of GAAP applied on a basis consistent with the most recent annual or quarterly financial statements delivered pursuant to Section 7.1 (or, prior to the delivery of the first financial statements pursuant to Section 7.1, consistent with the financial statements described in Section 5.1(f)); provided, however, if (a) the Borrowers shall object to determining such compliance on such basis at the time of delivery of such financial statements due to any change in GAAP or the rules promulgated with respect thereto or (b) the Administrative Agent or the Required Lenders shall so object in writing within 60 days after delivery of such financial statements (or after the Lenders have been informed of the change in GAAP affecting such financial statements, if later), then such calculations shall be made on a basis consistent with the most recent financial statements delivered by the Borrowers to the Lenders as to which no such objection shall have been made.

1.4 Joint Venture Investments.

With respect to any ownership of a Property by a Credit Party or one of its Subsidiaries through a joint venture (a) NOI, Adjusted NOI, Annualized Adjusted NOI, Annualized Capitalized Adjusted NOI, Annualized Modified Adjusted NOI and Annualized Capitalized Modified Adjusted NOI shall be calculated in accordance with such Credit Party's (or Subsidiary's) ownership interest in the net cash flow of such joint venture and (b) Indebtedness and Funded Debt shall be calculated as follows: (i) if the Indebtedness of such joint venture is recourse to such Credit Party (or Subsidiary), then the amount of such Indebtedness or Funded Debt that is recourse to such Credit Party (or Subsidiary), and (ii) if the Indebtedness of such joint venture is not recourse to such Credit Party (or Subsidiary), then such Credit Party's (or Subsidiary's) pro rata interest in such Indebtedness or Funded Debt.

23

SECTION 2

CREDIT FACILITY

2.1 Revolving Loans.

(a) Revolving Loan Commitment. Subject to the terms and conditions set forth herein, each Lender severally agrees to make revolving loans (each a "Revolving Loan" and collectively the "Revolving Loans") to the Borrowers, in Dollars, at any time and from time to time, during the period from and including the Effective Date to but not including the Revolving Loan Maturity Date or such earlier date if the Revolving Committed Amount has been terminated as provided herein; provided, however, that (i) the sum of the aggregate principal amount of Revolving Loans outstanding plus the aggregate amount of LOC Obligations outstanding shall not exceed the Revolving Committed Amount, (ii) with respect to each individual Lender, the Lender's pro rata share of outstanding Revolving Loans plus such Lender's pro rata share of outstanding LOC obligations shall not exceed such Lender's Revolving Loan Commitment Percentage of the Revolving Committed Amount, and (iii) the aggregate principal amount of Revolving Loans advanced for construction and development of Properties shall not exceed at any one time (A) for such Properties that are less than 50% preleased, $50,000,000 and (B) for all such Properties, $100,000,000. Subject to the terms of this Credit Agreement (including Section 3.3), the Borrowers may borrow, repay and reborrow Revolving Loans. The Administrative Agent shall keep a record of the purpose for which each of the Loans was advanced (and of repayments applied thereto), which record shall be conclusive absent prima facie error.

(b) Method of Borrowing for Revolving Loans. By no later than 11:00 a.m. (i) one Business Day prior to the date of the requested borrowing of Revolving Loans that will be Base Rate Loans or (ii) three Business Days prior to the date of the requested borrowing of Revolving Loans that will be Eurodollar Loans, the Borrowers shall submit an irrevocable written Notice of Borrowing in the form of Exhibit 2.1(b) to the Administrative Agent setting forth (A) the amount requested, (B) whether such Revolving Loans shall be Base Rate Loans or Eurodollar Loans, (C) with respect to Revolving Loans that will be Eurodollar Loans, the Interest Period applicable thereto; provided, however, that prior to December 31, 1998, or such earlier date as agreed to by the Administrative Agent, the Borrowers may not, without the consent of the Administrative Agent, request any Interest Period for Eurodollar Loans other than a one-month Interest Period, (D) the purpose of the proceeds of the Revolving Loans and (E) certification that the Borrowers have complied in all respects with Section 5.2.

(c) Funding of Revolving Loans. Upon receipt of a Notice of Borrowing, the Administrative Agent shall promptly inform the Lenders as to the terms thereof. Each Lender shall make its Revolving Loan Commitment Percentage of the requested Revolving Loans available to the Administrative Agent by 1:00 p.m. on the date specified in the Notice of Borrowing by deposit, in Dollars, of immediately available funds at the offices of the Administrative Agent at its principal office in Charlotte, North Carolina or at such other address as the Administrative Agent may designate in writing. The amount of the requested Revolving Loans will then be made available to the Borrowers by the Administrative Agent by crediting the account of the Borrowers on the books of such office of the Administrative Agent, to the extent the amount of such Revolving Loans are made available to the Administrative Agent.

24

No Lender shall be responsible for the failure or delay by any other Lender in its obligation to make Revolving Loans hereunder; provided, however, that the failure of any Lender to fulfill its obligations hereunder shall not relieve any other Lender of its obligations hereunder. Unless the Administrative Agent shall have been notified by any Lender prior to the date of any such Revolving Loan that such Lender does not intend to make available to the Administrative Agent its portion of the Revolving Loans to be made on such date, the Administrative Agent may assume that such Lender has made such amount available to the Administrative Agent on the date of such Revolving Loans, and the Administrative Agent in reliance upon such assumption, may (in its sole discretion but without any obligation to do so) make available to the Borrowers a corresponding amount. If such corresponding amount is not in fact made available to the Administrative Agent, the Administrative Agent shall be able to recover such corresponding amount from such Lender. If such Lender does not pay such corresponding amount forthwith upon the Administrative Agent's demand therefor, the Administrative Agent will promptly notify the Borrowers, and the Borrowers shall immediately pay such corresponding amount to the Administrative Agent. The Administrative Agent shall also be entitled to recover from the Lender or the Borrowers, as the case may be, interest on such corresponding amount in respect of each day from the date such corresponding amount was made available by the Administrative Agent to the Borrowers to the date such corresponding amount is recovered by the Administrative Agent at a per annum rate equal to (i) from the Borrowers at the applicable rate for such Revolving Loan pursuant to the Notice of Borrowing and (ii) from a Lender at the Federal Funds Rate.

(d) Reduction or Termination of Revolving Committed Amount. Upon at least three Business Days' notice, the Borrowers shall have the right to permanently terminate or reduce the aggregate unused amount of the Revolving Committed Amount at any time or from time to time; provided that (i) each partial reduction shall be in an aggregate amount at least equal to $5,000,000 and in integral multiples of $1,000,000 above such amount and (ii) no reduction shall be made which would reduce the Revolving Committed Amount to an amount less than the aggregate amount of outstanding Revolving Loans plus the aggregate amount of outstanding LOC Obligations. Any reduction in (or termination of) the Revolving Committed Amount shall be permanent and may not be reinstated. The Administrative Agent shall immediately notify the Lenders of any reduction in the Revolving Committed Amount.

(e) Continuations and Conversions. The Borrowers shall have the option, on any Business Day, to continue existing Eurodollar Loans for a subsequent Interest Period, to convert Base Rate Loans into Eurodollar Loans, or to convert Eurodollar Loans into Base Rate Loans; provided, however, that (i) each such continuation or conversion must be requested by the Borrowers pursuant to a written Notice of Continuation/Conversion, in the form of Exhibit 2.1(e), in compliance with the terms set forth below, (ii) except as provided in
Section 3.11, Eurodollar Loans may only be continued or converted on the last day of the

25

Interest Period applicable thereto, (iii) Eurodollar Loans may not be continued nor may Base Rate Loans be converted into Eurodollar Loans during the existence and continuation of a Default or Event of Default and (iv) any request to continue a Eurodollar Loan that fails to comply with the terms hereof or any failure to request a continuation of a Eurodollar Loan at the end of an Interest Period shall result in a conversion of such Eurodollar Loan to a Base Rate Loan on the last day of the applicable Interest Period. Each continuation or conversion must be requested by the Borrowers no later than 11:00 a.m. (A) one Business Day prior to the date for a requested conversion of a Eurodollar Loan to a Base Rate Loan or (B) three Business Days prior to the date for a requested continuation of a Eurodollar Loan or conversion of a Base Rate Loan to a Eurodollar Loan, in each case pursuant to a written Notice of Continuation/Conversion submitted to the Administrative Agent which shall set forth (x) whether the Borrowers wish to continue or convert such Loans and (y) if the request is to continue a Eurodollar Loan or convert a Loan to a Eurodollar Loan, the Interest Period applicable thereto; provided that prior to December 31, 1998, the Borrowers may not, without the consent of the Administrative Agent, request any Interest Period for Eurodollar Loans other than a one-month Interest Period.

(f) Minimum Amounts/Restrictions on Loans. Each request for a borrowing, conversion or continuation shall be subject to the requirements that (i) each Eurodollar Loan shall be in a minimum amount of $1,000,000 and in integral multiples of $100,000 in excess thereof, (ii) each Base Rate Loan shall be in a minimum amount of $500,000 (and integral multiples of $100,000 in excess thereof) or the remaining amount available under the Revolving Committed Amount,
(iii) no more than six Loans shall be made during any one month and
(iv) no more than eight Eurodollar Loans shall be outstanding at any one time. For the purposes of this Section, all Eurodollar Loans with the same Interest Periods beginning on the same date shall be considered as one Eurodollar Loan, but Eurodollar Loans with different Interest Periods, even if they begin on the same date, shall be considered as separate Eurodollar Loans.

(g) Notes. The Revolving Loans made by each Lender shall be evidenced by a duly executed promissory note of the Borrowers to each Lender in the face amount of its Revolving Loan Commitment Percentage of the Revolving Committed Amount in substantially the form of Exhibit 2.1(g).

2.2 Letter of Credit Subfacility.

(a) Issuance. Subject to the terms and conditions hereof and of the LOC Documents, if any, and any other terms and conditions which the Issuing Lender may reasonably require (so long as such terms and conditions do not impose any financial obligation on or require any Lien (not otherwise contemplated by this Credit Agreement) to be given by any Credit Party or conflict with any obligation of, or detract from any action which may be taken by, any Credit Party or its Subsidiaries under this Credit Agreement), the Issuing Lender shall from time to time upon request issue (from the Effective Date to the Revolving Loan Maturity Date and in a form reasonably acceptable to the Issuing Lender), in Dollars, and the LOC Participants shall participate in, Letters of Credit for the account of the Credit Parties or any of their Subsidiaries; provided, however, that (i) the aggregate amount of LOC Obligations shall not at any time exceed SIXTY FIVE MILLION

26

DOLLARS ($65,000,000), (ii) the sum of the aggregate amount of LOC Obligations outstanding plus Revolving Loans outstanding shall not exceed the Revolving Committed Amount and (iii) with respect to each individual LOC Participant, the LOC Participant's pro rata share of outstanding Revolving Loans plus its pro rata share of outstanding LOC Obligations shall not exceed such LOC Participant's Revolving Loan Commitment Percentage of the Revolving Committed Amount. The Issuing Lender may require the issuance and expiry date of each Letter of Credit to be a Business Day. Each Letter of Credit shall be either (x) a standby letter of credit issued to support the obligations (including pension or insurance obligations), contingent or otherwise, of a Credit Party or any of its Subsidiaries, or (y) a commercial letter of credit in respect of the purchase of goods or services by a Credit Party or any of its Subsidiaries in the ordinary course of business. Except as otherwise expressly agreed upon by all the LOC Participants, no Letter of Credit shall have an original expiry date more than one year from the date of issuance or shall have an expiry date beyond the Revolving Loan Maturity Date. Each Letter of Credit shall comply with the related LOC Documents. Each Letter of Credit shall be deemed to remain outstanding until it has expired or the original documents evidencing such Letter of Credit have been returned to the Issuing Lender.

(b) Notice and Reports. The request for the issuance of a Letter of Credit shall be submitted to the Issuing Lender at least three Business Days prior to the requested date of issuance. The Issuing Lender will, at least quarterly and more frequently upon request, provide to the Administrative Agent for dissemination to the Lenders a detailed report specifying the Letters of Credit which are then issued and outstanding and any activity with respect thereto which may have occurred since the date of the prior report, and including therein, among other things, the account party, the beneficiary, the face amount, and the expiry date as well as any payments or expirations which may have occurred. The Issuing Lender will further provide to the Administrative Agent, promptly upon request, copies of the Letters of Credit and the other LOC Documents.

(c) Participations.

(i) Each LOC Participant acknowledges and confirms that it has a Participation Interest in the liability of the Issuing Lender under each Existing Letter of Credit in an amount equal to its Revolving Loan Commitment Percentage of such Existing Letters of Credit. The Credit Parties' reimbursement obligations in respect of each Existing Letter of Credit, and each LOC Participant's obligations in connection therewith, shall be governed by the terms of this Credit Agreement.

(ii) Each LOC Participant, upon issuance of a Letter of Credit, shall be deemed to have purchased without recourse a risk participation from the Issuing Lender in such Letter of Credit and each LOC Document related thereto and the rights and obligations arising thereunder and any collateral relating thereto, in each case in an amount equal to its Revolving Loan Commitment Percentage of the obligations under such Letter of Credit, and shall absolutely, unconditionally and irrevocably assume, as primary obligor and not as surety, and be obligated to pay to the Issuing Lender therefor and discharge when due, its Revolving Loan Commitment Percentage of the obligations arising under such Letter of Credit. Without limiting the scope and nature of each LOC Participant's participation in any Letter of Credit, to the extent that the Issuing Lender has not been reimbursed as required hereunder or under any such Letter of Credit, each such LOC Participant shall pay to the Issuing Lender its Revolving Loan Commitment Percentage of such unreimbursed drawing in same day funds on the day of notification by the Issuing Lender of an unreimbursed drawing pursuant to the provisions of subsection (d) or (e) hereof. The obligation of each LOC Participant to so reimburse the Issuing Lender shall be absolute and unconditional and shall not be affected by the occurrence of a Default, an Event of Default or any other occurrence or event. Any such reimbursement shall not relieve or otherwise impair the obligation of the Borrowers to reimburse the Issuing Lender under any Letter of Credit, together with interest as hereinafter provided.

27

(d) Reimbursement. In the event of any drawing under any Letter of Credit, the Issuing Lender will promptly notify the Borrowers. Unless the Borrowers shall promptly notify the Issuing Lender of its intent to otherwise reimburse the Issuing Lender, the Borrowers shall be deemed to have requested a Revolving Loan at a per annum rate equal to the rate for Base Rate Loans in the amount of the drawing, the proceeds of which will be used to satisfy the reimbursement obligations. The Borrowers shall reimburse the Issuing Lender on the day of drawing under any Letter of Credit either with the proceeds of such Revolving Loan obtained hereunder or otherwise in same day funds as provided herein or in the LOC Documents. If the Borrowers shall fail to reimburse the Issuing Lender as provided hereinabove, the unreimbursed amount of such drawing shall bear interest at a per annum rate equal to the rate for Base Rate Loans plus two percent (2%). The Borrowers' reimbursement obligations hereunder shall be absolute and unconditional under all circumstances irrespective of (but without waiver of) any rights of set-off, counterclaim or defense to payment the applicable account party or the Borrowers may claim or have against an Issuing Lender, the Administrative Agent, the Lenders, the beneficiary of the Letter of Credit drawn upon or any other Person, including without limitation, any defense based on any failure of the applicable account party or the Borrowers to receive consideration or the legality, validity, regularity or unenforceability of the Letter of Credit. The Issuing Lender will promptly notify the LOC Participants of the amount of any unreimbursed drawing and each LOC Participant shall promptly pay to the Issuing Lender, in Dollars and in immediately available funds, the amount of such LOC Participant's Revolving Loan Commitment Percentage of such unreimbursed drawing. Such payment shall be made on the day such notice is received by such Lender from the Issuing Lender if such notice is received at or before 2:00 p.m., otherwise such payment shall be made at or before 12:00 Noon on the Business Day next succeeding the day such notice is received. If such LOC Participant does not pay such amount to the Issuing Lender in full upon such request, such LOC Participant shall, on demand, pay to the Issuing Lender interest on the unpaid amount during the period from the date the LOC Participant received the notice regarding the unreimbursed drawing until such LOC Participant pays such amount to the Issuing Lender in full at a rate per annum equal to, if paid within two Business Days of the date of drawing, the Federal Funds Rate and thereafter at a rate equal to the Base Rate. Each LOC Participant's obligation to make such payment to the Issuing Lender, and the right of the Issuing Lender to receive the same, shall be absolute and unconditional, shall not be affected by any circumstance whatsoever and without regard to the termination of this Credit Agreement or the Commitments hereunder, the existence of a Default or Event of Default or the acceleration of the obligations hereunder and shall be made without any offset, abatement, withholding or reduction whatsoever. Simultaneously with the making of each such payment by a LOC Participant to the Issuing Lender, such LOC Participant shall, automatically and without any further action on the part of the Issuing Lender or such LOC Participant, acquire a participation in an amount equal to such payment (excluding the portion of such payment constituting interest owing to the Issuing Lender) in the related unreimbursed drawing portion of the LOC Obligation and in the interest thereon and in the related LOC Documents, and shall have a ratable interest in the Issuing Lender's claim against the Borrowers with respect thereto.

28

(e) Repayment with Revolving Loans. On any day on which the Borrowers shall have requested, or been deemed to have requested, a Revolving Loan borrowing to reimburse a drawing under a Letter of Credit (as set forth in clause (d) above), the Administrative Agent shall give notice to the applicable Lenders that a Revolving Loan has been requested or deemed requested in connection with a drawing under a Letter of Credit, in which case a Revolving Loan borrowing comprised solely of Base Rate Loans (each such borrowing, a "Mandatory Borrowing") shall be immediately made from all applicable Lenders (without giving effect to any termination of the Commitments pursuant to Section 9.2) pro rata based on each Lender's respective Revolving Loan Commitment Percentage and the proceeds thereof shall be paid directly to the Issuing Lender for application to the respective LOC Obligations. Each such Lender hereby irrevocably agrees to make such Revolving Loans immediately upon any such request or deemed request on account of each such Mandatory Borrowing in the amount and in the manner specified in the preceding sentence and on the same such date notwithstanding (i) the amount of Mandatory Borrowing may not comply with the minimum amount for borrowings of Revolving Loans otherwise required hereunder, (ii) whether any conditions specified in Section 5.2 are then satisfied, (iii) whether a Default or Event of Default then exists, (iv) failure of any such request or deemed request for Revolving Loans to be made by the time otherwise required hereunder, (v) the date of such Mandatory Borrowing, or (vi) any reduction in the Revolving Committed Amount or any termination of the Commitments. In the event that any Mandatory Borrowing cannot for any reason be made on the date otherwise required above (including, without limitation, as a result of the commencement of a proceeding under the Bankruptcy Code with respect to a Credit Party), then each such Lender hereby agrees that it shall forthwith fund (as of the date the Mandatory Borrowing would otherwise have occurred, but adjusted for any payments received from the Borrowers on or after such date and prior to such purchase) its Participation Interest in the outstanding LOC Obligations; provided, further, that in the event any Lender shall fail to fund its Participation Interest on the day the Mandatory Borrowing would otherwise have occurred, then the amount of such Lender's unfunded Participation Interest therein shall bear interest payable to the Issuing Lender upon demand, at the rate equal to, if paid within two Business Days of such date, the Federal Funds Rate, and thereafter at a rate equal to the Base Rate.

(f) Modification and Extension. The issuance of any supplement, modification, amendment, renewal, or extensions to any Letter of Credit shall, for purposes hereof, be treated in all respects the same as the issuance of a new Letter of Credit hereunder; provided that the fees to be paid pursuant to Section 3.4(b)(i) shall only be due if the expiration date of such Letter of Credit is extended.

29

(g) Uniform Customs and Practices. The Issuing Lender may have the Letters of Credit be subject to The Uniform Customs and Practice for Documentary Credits, as published as of the date of issue by the International Chamber of Commerce (Publication No. 500 or the most recent publication, the "UCP"), in which case the UCP may be incorporated therein and deemed in all respects to be a part thereof.

(h) Responsibility of Issuing Lender. It is expressly understood and agreed as between the Lenders that the obligations of the Issuing Lender hereunder to the LOC Participants are only those expressly set forth in this Credit Agreement and that the Issuing Lender shall be entitled to assume that the conditions precedent set forth in Section 5.2 have been satisfied unless it shall have acquired actual knowledge that any such condition precedent has not been satisfied; provided, however, that nothing set forth in this
Section 2.2 shall be deemed to prejudice the right of any LOC Participant to recover from the Issuing Lender any amounts made available by such LOC Participant to the Issuing Lender pursuant to this Section 2.2 in the event that it is determined by a court of competent jurisdiction that the payment with respect to a Letter of Credit constituted gross negligence or willful misconduct on the part of the Issuing Lender.

(i) Conflict with LOC Documents. In the event of any conflict between this Credit Agreement and any LOC Document, this Credit Agreement shall govern.

(j) Indemnification of Issuing Lender.

(i) In addition to its other obligations under this Credit Agreement, the Credit Parties hereby agree to protect, indemnify, pay and save the Issuing Lender harmless from and against any and all claims, demands, liabilities, damages, losses, costs, charges and expenses (including reasonable attorneys' fees) that the Issuing Lender may incur or be subject to as a consequence, direct or indirect, of (A) the issuance of any Letter of Credit or (B) the failure of the Issuing Lender to honor a drawing under a Letter of Credit as a result of any act or omission, whether rightful or wrongful, of any present or future de jure or de facto Governmental Authority (all such acts or omissions, herein called "Government Acts").

(ii) As between the Credit Parties and the Issuing Lender, the Credit Parties shall assume all risks of the acts, omissions or misuse of any Letter of Credit by the beneficiary thereof. The Issuing Lender shall not be responsible for: (A) the form, validity, sufficiency, accuracy, genuineness or legal effect of any document submitted by any Credit Party in connection with the application for and issuance of any Letter of Credit, even if it should in fact prove to be in any or all respects invalid, insufficient, inaccurate, fraudulent or forged; (B) the validity or sufficiency of any instrument transferring or assigning or purporting to transfer or assign any Letter of Credit or the rights or benefits thereunder or proceeds thereof, in whole or in part, that may prove to be invalid or ineffective for any reason; (C) failure of the beneficiary of a Letter of Credit to comply fully with conditions required in order to

30

draw upon a Letter of Credit; (D) errors, omissions, interruptions or delays in transmission or delivery of any messages, by mail, cable, telegraph, telex or otherwise, whether or not they be in cipher; (E) errors in interpretation of technical terms; (F) any loss or delay in the transmission or otherwise of any document required to be delivered to the Issuing Lender in order to make a drawing under a Letter of Credit or of the proceeds thereof; and (G) any consequences arising from causes beyond the control of the Issuing Lender, including, without limitation, any Government Acts. None of the above shall affect, impair, or prevent the vesting of the Issuing Lender's rights or powers hereunder.

(iii) In furtherance and extension and not in limitation of the specific provisions hereinabove set forth, any action taken or omitted by the Issuing Lender, under or in connection with any Letter of Credit or the related certificates, if taken or omitted in good faith, shall not put the Issuing Lender under any resulting liability to the Credit Parties. It is the intention of the parties that this Credit Agreement shall be construed and applied to protect and indemnify the Issuing Lender against any and all risks involved in the issuance of the Letters of Credit, all of which risks are hereby assumed by the Credit Parties, including, without limitation, any and all risks of the acts or omissions, whether rightful or wrongful, of any present or future Government Acts. The Issuing Lender shall not, in any way, be liable for any failure by the Issuing Lender or anyone else to pay any drawing under any Letter of Credit as a result of any Government Acts or any other cause beyond the control of the Issuing Lender.

(iv) Nothing in this subsection (j) is intended to limit the reimbursement obligation of the Credit Parties contained in this Section 2.2. The obligations of the Credit Parties under this subsection (j) shall survive the termination of this Credit Agreement. No act or omission of any current or prior beneficiary of a Letter of Credit shall in any way affect or impair the rights of the Issuing Lender to enforce any right, power or benefit under this Credit Agreement.

(v) Notwithstanding anything to the contrary contained in this subsection (j), the Credit Parties shall have no obligation to indemnify the Issuing Lender in respect of any liability incurred by the Issuing Lender arising solely out of the gross negligence or willful misconduct of the Issuing Lender. Nothing in this Agreement shall relieve the Issuing Lender of any liability to the Credit Parties in respect of any action taken by the Issuing Lender which action constitutes gross negligence or willful misconduct of the Issuing Lender or a violation of the UCP or Uniform Commercial Code (as applicable).

2.3 Joint and Several Liability of the Borrowers.

(a) Each of the Borrowers is accepting joint and several liability hereunder in consideration of the financial accommodation to be provided by the Lenders under this Credit Agreement, for the mutual benefit, directly and indirectly, of each of the Borrowers and in consideration of the undertakings of each of the Borrowers to accept joint and several liability for the obligations of each of them.

31

(b) Each of the Borrowers jointly and severally hereby irrevocably and unconditionally accepts, not merely as a surety but also as a co-debtor, joint and several liability with the other Borrowers with respect to the payment and performance of all of the Obligations arising under this Credit Agreement and the other Credit Documents, it being the intention of the parties hereto that all the Obligations shall be the joint and several obligations of each of the Borrowers without preferences or distinction among them.

(c) If and to the extent that any of the Borrowers shall fail to make any payment with respect to any of the obligations hereunder as and when due or to perform any of such obligations in accordance with the terms thereof, then in each such event, the other Borrowers will make such payment with respect to, or perform, such obligation.

(d) The obligations of each Borrower under the provisions of this Section 2.3 constitute full recourse obligations of such Borrower, enforceable against it to the full extent of its properties and assets.

(e) Except as otherwise expressly provided herein, to the extent permitted by law, each Borrower hereby waives notice of acceptance of its joint and several liability, notice of occurrence of any Default or Event of Default (except to the extent notice is expressly required to be given pursuant to the terms of this Credit Agreement), or of any demand for any payment under this Credit Agreement, notice of any action at any time taken or omitted by the Administrative Agent or the Lenders under or in respect of any of the Obligations hereunder, any requirement of diligence and, generally, all demands, notices and other formalities of every kind in connection with this Credit Agreement. Each Borrower hereby assents to, and waives notice of, any extension or postponement of the time for the payment of any of the Obligations hereunder, the acceptance of any partial payment thereon, any waiver, consent or other action or acquiescence by the Administrative Agent or the Lenders at any time or times in respect of any default by any Borrower in the performance or satisfaction of any term, covenant, condition or provision of this Credit Agreement, any and all other indulgences whatsoever by the Administrative Agent or the Lenders in respect of any of the Obligations hereunder, and the taking, addition, substitution or release, in whole or in part, at any time or times, of any security for any of such Obligations or the addition, substitution or release, in whole or in part, of any Borrower. Without limiting the generality of the foregoing, each Borrower assents to any other action or delay in acting or any failure to act on the part of the Administrative Agent or the Lenders, including, without limitation, any failure strictly or diligently to assert any right or to pursue any remedy or to comply fully with applicable laws or regulations thereunder which might, but for the provisions of this
Section 2.3, afford grounds for terminating, discharging or relieving such Borrower, in whole or in part, from any of its obligations under this Section 2.3, it being the intention of each Borrower that, so long as any of the Obligations hereunder remain unsatisfied, the obligations of such Borrower under this Section 2.3 shall not be discharged except by performance and then only to the extent of such performance. The obligations of each Borrower under this Section 2.3 shall not be diminished or rendered unenforceable by any winding up, reorganization, arrangement, liquidation, reconstruction or similar proceeding with respect to any reconstruction or similar proceeding with respect to any Borrower or a Lender. The joint and several liability of the Borrowers hereunder shall continue in full force and effect notwithstanding any absorption, merger, amalgamation or any other change whatsoever in the name, membership, constitution or place of formation of any Borrower or any of the Lenders.

32

(f) The provisions of this Section 2.3 are made for the benefit of the Lenders and their successors and assigns, and may be enforced by them from time to time against any of the Borrowers as often as occasion therefor may arise and without requirement on the part of the Lenders first to marshall any of its claims or to exercise any of its rights against the other Borrower or to exhaust any remedies available to it against the other Borrower or to resort to any other source or means of obtaining payment of any of the Obligations hereunder or to elect any other remedy. The provisions of this Section 2.3 shall remain in effect until all the Obligations hereunder shall have been paid in full or otherwise fully satisfied. If at any time, any payment, or any part thereof, made in respect of any of the Obligations, is rescinded or must otherwise be restored or returned by the Lenders upon the insolvency, bankruptcy or reorganization of any of the Borrowers, or otherwise, the provisions of this Section 2.3 will forthwith be reinstated and in effect as though such payment had not been made.

(g) Notwithstanding any provision to the contrary contained herein or in any of the other Credit Documents, to the extent the obligations of any Borrower shall be adjudicated to be invalid or unenforceable for any reason (including, without limitation, because of any applicable state or federal law relating to fraudulent conveyances or transfers) then the obligations of such Borrower hereunder shall be limited to the maximum amount that is permissible under applicable law (whether federal or state and including, without limitation, the Bankruptcy Code).

2.4 Appointment of BOP.

BRT hereby appoints BOP to act as its agent for all purposes under this Credit Agreement (including, without limitation, with respect to all matters related to the borrowing and repayment of Loans) and agrees that (i) BOP may execute such documents on behalf of BRT as BOP deems appropriate in its sole discretion and BRT shall be obligated by all of the terms of any such document executed on its behalf, (ii) any notice or communication delivered by the Administrative Agent or the Lender to BOP shall be deemed delivered to BRT and (iii) the Administrative Agent or the Lender may accept, and be permitted to rely on, any document, instrument or agreement executed by BOP on behalf of BRT.

2.5 Non-Recourse.

Notwithstanding anything herein to the contrary, no recourse shall be had against Brandywine Realty Services Partnership or any past, present or future shareholder, officer, director or trustee of BRT for any obligation of the Credit Parties under the Credit Documents, or for any claim based thereon or otherwise in respect thereof; provided, however, that this Section 2.5 shall not restrict or limit any claim against any such Person arising out of or occurring with respect to fraud or any intentional misrepresentation or any act or omission that is willful or wanton or constitutes gross negligence or willful misconduct.

33

SECTION 3

GENERAL PROVISIONS APPLICABLE TO LOANS AND LETTERS OF CREDIT

3.1 Interest.

(a) Interest Rate. All Base Rate Loans shall accrue interest at the Adjusted Base Rate. All Eurodollar Loans shall accrue interest at the Adjusted Eurodollar Rate.

(b) Default Rate of Interest. Upon the occurrence, and during the continuance, of an Event of Default, the principal of and, to the extent permitted by law, interest on the Loans and any other amounts owing hereunder or under the other Credit Documents (including without limitation fees and expenses) shall bear interest, payable on demand, at a per annum rate equal to four percent (4%) plus the rate which would otherwise be applicable (or if no rate is applicable, then the rate for Base Rate Loans plus four percent (4%) per annum); provided that unless the Loans have been accelerated, interest, including the default rate of interest, shall only be due and payable on the Interest Payment Dates.

(c) Interest Payments. Interest on Loans shall be due and payable in arrears on each Interest Payment Date. If an Interest Payment Date falls on a date which is not a Business Day, such Interest Payment Date shall be deemed to be the succeeding Business Day, except that in the case of Eurodollar Loans where the succeeding Business Day falls in the succeeding calendar month, then on the preceding Business Day.

3.2 Place and Manner of Payments.

All payments of principal, interest, fees, expenses and other amounts to be made by a Borrower under this Agreement shall be received not later than 2:00 p.m. on the date when due, in Dollars and in immediately available funds, by the Administrative Agent at its offices in Charlotte, North Carolina or the Issuing Lender at its applicable address. Payments received after such time shall be deemed to have been received on the next Business Day. The Borrowers shall, at the time it makes any payment under this Agreement, specify to the Administrative Agent or Issuing Lender, as applicable, the Loans, Letters of Credit, fees or other amounts payable by the Borrowers hereunder to which such payment is to be applied (and in the event that it fails to specify, or if such application would be inconsistent with the terms hereof, the Administrative Agent shall, subject to Section 3.7, distribute such payment to the Lenders in such manner as the Administrative Agent may deem appropriate). The Administrative Agent will distribute any such payment to the Lenders on the day received if such payment is received prior to 2:00 p.m.; otherwise the Administrative Agent will distribute such payment to the Lenders on the next succeeding Business Day. Whenever any payment hereunder shall be stated to be due on a day which is not a Business Day, the due date thereof shall be extended to the next succeeding Business Day (subject to accrual of interest and fees for the period of such extension), except that in the case of Eurodollar Loans, if the extension would cause the payment to be made in the next following calendar month, then such payment shall instead be made on the next preceding Business Day.

34

3.3 Prepayments.

(a) Voluntary Prepayments. The Borrowers shall have the right to prepay Loans in whole or in part from time to time without premium or penalty; provided, however, that (i) Eurodollar Loans may only be prepaid on three Business Days' prior written notice to the Administrative Agent and any prepayment of Eurodollar Loans will be subject to Section 3.14 and (ii) each such partial prepayment of Loans shall be in the minimum principal amount of $1,000,000 and integral multiples of $100,000 in excess thereof.

(b) Mandatory Prepayments.

(i) Revolving Committed Amount. If at any time (other than if consented to in writing by the Lenders) the aggregate amount of Revolving Loans outstanding plus LOC Obligations outstanding exceeds the Revolving Committed Amount, the Borrowers shall promptly forward to the Administrative Agent an amount such that the amount of Revolving Loans outstanding plus LOC Obligations outstanding does not exceed the Revolving Committed Amount (to be applied as set forth in Section 3.3(c) below).

(ii) Equity Offerings. Upon receipt by a Borrower or any of its Subsidiaries of the proceeds from an Equity Issuance, the Borrowers shall immediately forward 100% of the Net Cash Proceeds (if any) to the Administrative Agent as a prepayment of the Loans (to be applied as set forth in Section 3.3(c) below).

(c) Application of Prepayments. All amounts required to be paid pursuant to this Section 3.3 shall be applied first to Base Rate Loans and then to Eurodollar Loans in direct order of Interest Period maturities. All prepayments hereunder shall be subject to Section 3.14; provided that prepayments required to be made pursuant to
Section 3.3(b)(ii) that repay a Eurodollar Loan within 30 days of the last day of its Interest Period shall not be subject to Section 3.14.

35

3.4 Fees.

(a) Unused Fees. In consideration of the Revolving Committed Amount being made available by the Lenders hereunder, the Borrowers agree to pay to the Administrative Agent, for the pro rata benefit of each Lender (based on each Lender's Revolving Loan Commitment Percentage of the Revolving Committed Amount and based on the number of days that each Lender was a Lender during the prior fiscal quarter), a fee equal to (i) if the average Unused Commitment during the prior fiscal quarter (or during such applicable portion of the prior fiscal quarter if a Lender was not a Lender during the entire fiscal quarter) is less than 50% of the Revolving Committed Amount, .15% per annum on the Unused Commitment and (ii) if the average Unused Commitment during the prior fiscal quarter (or during such applicable portion of the prior fiscal quarter if a Lender was not a Lender during the entire fiscal quarter) is equal to or greater than 50% of the Revolving Committed Amount, .20% per annum on the Unused Commitment (the "Unused Fees"). The accrued Unused Fees shall commence to accrue on the Effective Date and shall be due and payable in arrears on the first day of each fiscal quarter of the Borrowers (as well as on the Revolving Loan Maturity Date and on any date that the Revolving Committed Amount is reduced) for the immediately preceding fiscal quarter (or portion thereof), beginning with the first of such dates to occur after the Effective Date.

(b) Letter of Credit Fees.

(i) Letter of Credit Fees. In consideration of the issuance of Letters of Credit hereunder, the Borrowers agree to pay to the Issuing Lender, for the pro rata benefit of the applicable Lenders (based on each Lender's Revolving Loan Commitment Percentage of the Revolving Committed Amount), a per annum fee (the "Letter of Credit Fees") equal to 1.125% on the average daily maximum amount available to be drawn under each such Letter of Credit from the date of issuance to the date of expiration. The Letter of Credit Fees will be payable in full on the date of issuance of the Letter of Credit.

(ii) Issuing Lender Fees. In addition to the Letter of Credit Fees payable pursuant to subsection (i) above, the Borrowers shall pay to the Issuing Lender for its own account, without sharing by the other Lenders, (A) a fee equal to .125% per annum on the total sum of the undrawn amounts of all Letters of Credit issued by the Issuing Lender, such fee to be paid in full on the date of issuance of the Letter of Credit and (B) the customary charges from time to time to the Issuing Lender for its services in connection with the issuance, amendment, payment, transfer, administration, cancellation and conversion of, and drawings under, Letters of Credit (collectively, the "Issuing Lender Fees").

(c) Administrative Fees. The Borrowers agree to pay to the Administrative Agent, for its own account, an annual fee as agreed to between the Borrowers and the Administrative Agent in the Fee Letter.

36

(d) Additional Fees. If on March 31, 1999, the Leverage Ratio is greater than .55 to 1.0, the Borrowers shall pay to the Administrative Agent, for the pro rata benefit of the Lenders, a fee equal to .25% of the then Revolving Committed Amount.

3.5 Payment in full at Maturity; Extension of Maturity.

(a) On the Revolving Loan Maturity Date, the entire outstanding principal balance of all Revolving Loans and all LOC Obligations, together with accrued but unpaid interest and all other sums owing with respect thereto, shall be due and payable in full, unless accelerated sooner pursuant to Section 9.2.

(b) If on the Initial Revolving Loan Maturity Date (i) no Default or Event of Default exists and is continuing and (ii) the Borrowers pay to the Administrative Agent, for the pro rata benefit of the Lenders, an extension fee equal to .20% of the then Revolving Committed Amount, the Borrowers may elect to extend the Revolving Loan Maturity Date to September 30, 2002. The Borrowers shall give written notice to the Administrative Agent of its desire to effect such election at least 30 days, but no more than 90 days, prior to the Initial Revolving Loan Maturity Date.

3.6 Computations of Interest and Fees.

(a) Except for Base Rate Loans which shall be calculated on the basis of a 365 or 366 day year as the case may be, all computations of interest and fees hereunder shall be made on the basis of the actual number of days elapsed over a year of 360 days. Interest shall accrue from and include the date of borrowing (or continuation or conversion) but exclude the date of payment.

(b) It is the intent of the Lenders and the Credit Parties to conform to and contract in strict compliance with applicable usury law from time to time in effect. All agreements between the Lenders and the Credit Parties are hereby limited by the provisions of this paragraph which shall override and control all such agreements, whether now existing or hereafter arising and whether written or oral. In no way, nor in any event or contingency (including but not limited to prepayment or acceleration of the maturity of any obligation), shall the interest taken, reserved, contracted for, charged, or received under this Credit Agreement, under the Notes or otherwise, exceed the maximum nonusurious amount permissible under applicable law. If, from any possible construction of any of the Credit Documents or any other document, interest would otherwise be payable in excess of the maximum nonusurious amount, any such construction shall be subject to the provisions of this paragraph and such interest shall be automatically reduced to the maximum nonusurious amount permitted under applicable law, without the necessity of execution of any amendment or new document. If any Lender shall ever receive anything of value which is characterized as interest on the Loans under applicable law and which would, apart from this provision, be in excess of the maximum lawful amount, an amount equal to the amount which would have been excessive interest shall, without penalty, be applied to the reduction of the principal amount owing on the Loans and not to the payment of interest, or refunded to the Credit Parties or the other payor thereof if and to the extent such amount which would have been excessive exceeds such unpaid principal amount of the Loans. The right to

37

demand payment of the Loans or any other indebtedness evidenced by any of the Credit Documents does not include the right to receive any interest which has not otherwise accrued on the date of such demand, and the Lenders do not intend to charge or receive any unearned interest in the event of such demand. All interest paid or agreed to be paid to the Lenders with respect to the Loans shall, to the extent permitted by applicable law, be amortized, prorated, allocated, and spread throughout the full stated term (including any renewal or extension) of the Loans so that the amount of interest on account of such indebtedness does not exceed the maximum nonusurious amount permitted by applicable law.

3.7 Pro Rata Treatment.

Except to the extent otherwise provided herein:

(a) Loans. Each Revolving Loan borrowing, each payment or prepayment of principal of any Loan, each payment of fees (other than the Administrative Fees, the Issuing Lender Fees and, as set forth in
Section 3.4(a), the Unused Fees), each reduction of the Revolving Committed Amount, and each conversion or continuation of any Loan, shall (except as otherwise provided in Section 3.11) be allocated pro rata among the Lenders in accordance with the respective Revolving Loan Commitment Percentages of such Lenders (or, if the Commitments of such Lenders have expired or been terminated, in accordance with the respective principal amounts of the outstanding Loans and Participation Interests of such Lenders); provided that, if any Lender shall have failed to pay its applicable pro rata share of any Revolving Loan, then any amount to which such Lender would otherwise be entitled pursuant to this Section 3.7 shall instead be payable to the Administrative Agent until the share of such Loan not funded by such Lender has been repaid; provided further, that in the event any amount paid to any Lender pursuant to this Section 3.7 is rescinded or must otherwise be returned by the Administrative Agent, each Lender shall, upon the request of the Administrative Agent, repay to the Administrative Agent the amount so paid to such Lender, with interest for the period commencing on the date such payment is returned by the Administrative Agent until the date the Administrative Agent receives such repayment at a rate per annum equal to, during the period to but excluding the date two Business Days after such request, the Federal Funds Rate, and thereafter, at the Base Rate plus two percent (2%) per annum.

(b) Letters of Credit. Each payment of unreimbursed drawings in respect of LOC Obligations shall be allocated to each LOC Participant pro rata in accordance with its Revolving Loan Commitment Percentage; provided that, if any LOC Participant shall have failed to pay its applicable pro rata share of any drawing under any Letter of Credit, then any amount to which such LOC Participant would otherwise be entitled pursuant to this subsection (b) shall instead be payable to the Issuing Lender until the share of such unreimbursed drawing not funded by such Lender has been repaid; provided further, that in the event any amount paid to any LOC Participant pursuant to this subsection (b) is rescinded or must otherwise be returned by the Issuing Lender, each LOC Participant shall, upon the request of the Issuing Lender, repay to the Administrative Agent for the account of the Issuing Lender the amount so paid to such LOC Participant, with interest for the period commencing on the date such payment is returned by the Issuing Lender

38

until the date the Issuing Lender receives such repayment at a rate per annum equal to, during the period to but excluding the date two Business Days after such request, the Federal Funds Rate, and thereafter, the Base Rate plus two percent (2%) per annum.

3.8 Sharing of Payments.

The Lenders agree among themselves that, except to the extent otherwise provided herein, in the event that any Lender shall obtain payment in respect of any Loan or any other obligation owing to such Lender under this Credit Agreement through the exercise of a right of setoff, banker's lien or counterclaim, or pursuant to a secured claim under Section 506 of the Bankruptcy Code or other security or interest arising from, or in lieu of, such secured claim, received by such Lender under any applicable bankruptcy, insolvency or other similar law or otherwise, or by any other means, in excess of its pro rata share of such payment as provided for in this Credit Agreement, such Lender shall promptly pay in cash or purchase from the other Lenders a participation in such Loans and other obligations in such amounts, and make such other adjustments from time to time, as shall be equitable to the end that all Lenders share such payment in accordance with their respective ratable shares as provided for in this Credit Agreement. The Lenders further agree among themselves that if payment to a Lender obtained by such Lender through the exercise of a right of setoff, banker's lien, counterclaim or other event as aforesaid shall be rescinded or must otherwise be restored, each Lender which shall have shared the benefit of such payment shall, by payment in cash or a repurchase of a participation theretofore sold, return its share of that benefit (together with its share of any accrued interest payable with respect thereto) to each Lender whose payment shall have been rescinded or otherwise restored. The Credit Parties agree that any Lender so purchasing such a participation may, to the fullest extent permitted by law, exercise all rights of payment, including setoff, banker's lien or counterclaim, with respect to such participation as fully as if such Lender were a holder of such Loan or other obligation in the amount of such participation. Except as otherwise expressly provided in this Credit Agreement, if any Lender shall fail to remit to the Administrative Agent or any other Lender an amount payable by such Lender to the Administrative Agent or such other Lender pursuant to this Credit Agreement on the date when such amount is due, such payments shall be made together with interest thereon for each date from the date such amount is due until the date such amount is paid to the Administrative Agent or such other Lender at a rate per annum equal to the Federal Funds Rate. If under any applicable bankruptcy, insolvency or other similar law, any Lender receives a secured claim in lieu of a setoff to which this Section 3.8 applies, such Lender shall, to the extent practicable, exercise its rights in respect of such secured claim in a manner consistent with the rights of the Lenders under this Section 3.8 to share in the benefits of any recovery on such secured claim.

3.9 Capital Adequacy.

If, after the date hereof, any Lender has determined that the adoption or the becoming effective of, or any change in, or any change by any Governmental Authority, central bank or comparable agency charged with the interpretation or administration thereof in the interpretation or administration of, any applicable law, rule or regulation regarding capital adequacy, or compliance by such Lender, or its parent corporation, with any request or directive regarding capital adequacy (whether or not having the force of law) of any such authority, central bank or comparable agency, has or would have the effect of reducing the rate of return on such Lender's (or parent corporation's) capital or assets as a consequence of its commitments or obligations hereunder to a level below that

39

which such Lender, or its parent corporation, could have achieved but for such adoption, effectiveness, change or compliance (taking into consideration such Lender's (or parent corporation's) policies with respect to capital adequacy), then, upon notice from such Lender to the Borrowers and the Administrative Agent, the Borrowers shall be obligated to pay to such Lender such additional amount or amounts as will compensate such Lender on an after-tax basis (after taking into account applicable deductions and credits in respect of the amount indemnified) for such reduction. Each determination by any such Lender of amounts owing under this Section shall, absent manifest error, be conclusive and binding on the parties hereto. This covenant shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

3.10 Inability To Determine Interest Rate.

If prior to the first day of any Interest Period, the Administrative Agent shall have determined in good faith (which determination shall be conclusive and binding upon the Borrowers) that, by reason of circumstances affecting the relevant market, adequate and reasonable means do not exist for ascertaining the Adjusted Eurodollar Rate for such Interest Period, the Administrative Agent shall give telecopy or telephonic notice thereof to the Borrowers and the Lenders as soon as practicable thereafter, and will also give prompt written notice to the Borrowers when such conditions no longer exist. If such notice is given (a) any Eurodollar Loans requested to be made on the first day of such Interest Period shall be made as Base Rate Loans and
(b) any Loans that were to have been converted on the first day of such Interest Period to or continued as Eurodollar Loans shall be converted to or continued as Base Rate Loans. Until such notice has been withdrawn by the Administrative Agent, no further Eurodollar Loans shall be made or continued as such, nor shall the Borrowers have the right to convert Base Rate Loans to Eurodollar Loans.

3.11 Illegality.

Notwithstanding any other provision herein, if the adoption of or any change in any Requirement of Law or in the interpretation or application thereof occurring after the Closing Date shall make it unlawful for any Lender to make or maintain Eurodollar Loans as contemplated by this Credit Agreement,
(a) such Lender shall promptly give written notice of such circumstances to the Borrowers and the Administrative Agent (which notice shall be promptly withdrawn whenever such circumstances no longer exist), (b) the commitment of such Lender hereunder to make Eurodollar Loans, continue Eurodollar Loans as such and convert a Base Rate Loan to Eurodollar Loans shall forthwith be cancelled and, until such time as it shall no longer be unlawful for such Lender to make or maintain Eurodollar Loans, such Lender shall then have a commitment only to make a Base Rate Loan when a Eurodollar Loan is requested and (c) such Lender's Loans then outstanding as Eurodollar Loans, if any, shall be converted automatically to Base Rate Loans on the respective last days of the then current Interest Periods with respect to such Loans or within such earlier period as required by law. If any such conversion of a Eurodollar Loan occurs on a day which is not the last day of the then current Interest Period with respect thereto, the Borrowers shall pay to such Lender such amounts, if any, as may be required pursuant to Section 3.14; provided that no such payments shall be required if the conversion of a Eurodollar Loan occurs within 30 days of the last day of the Interest Period of such Eurodollar Loan.

40

3.12 Requirements of Law.

If the adoption of or any change in any Requirement of Law or in the interpretation or application thereof applicable to any Lender, or compliance by any Lender with any request or directive (whether or not having the force of law) from any central bank or other Governmental Authority, in each case made subsequent to the Closing Date (or, if later, the date on which such Lender becomes a Lender):

(a) shall subject such Lender to any tax of any kind whatsoever with respect to any Letter of Credit, any Eurodollar Loans made by it or its obligation to make Eurodollar Loans, or change the basis of taxation of payments to such Lender in respect thereof (except for Non-Excluded Taxes covered by Section 3.13 (including Non-Excluded Taxes imposed solely by reason of any failure of such Lender to comply with its obligations under Section 3.13(b)) and changes in taxes measured by or imposed upon the overall net income, or franchise tax (imposed in lieu of such net income tax), of such Lender or its applicable lending office, branch, or any affiliate thereof);

(b) shall impose, modify or hold applicable any reserve, special deposit, compulsory loan or similar requirement against assets held by, deposits or other liabilities in or for the account of, advances, loans or other extensions of credit by, or any other acquisition of funds by, any office of such Lender which is not otherwise included in the determination of the Adjusted Eurodollar Rate hereunder; or

(c) shall impose on such Lender any other condition (excluding any tax of any kind whatsoever);

and the result of any of the foregoing is to increase the cost to such Lender, by an amount which such Lender deems to be material, of making, converting into, continuing or maintaining Eurodollar Loans or issuing or participating in Letters of Credit or to reduce any amount receivable hereunder in respect thereof, then, in any such case, upon notice to the Borrowers from such Lender, through the Administrative Agent, in accordance herewith, the Borrowers shall be obligated to promptly pay such Lender, upon its demand, any additional amounts necessary to compensate such Lender on an after-tax basis (after taking into account applicable deductions and credits in respect of the amount indemnified) for such increased cost or reduced amount receivable, provided that, in any such case, the Borrowers may elect to convert the Eurodollar Loans made by such Lender hereunder to Base Rate Loans by giving the Administrative Agent at least one Business Day's notice of such election, in which case the Borrowers shall promptly pay to such Lender, upon demand, without duplication, such amounts, if any, as may be required pursuant to
Section 3.14. If any Lender becomes entitled to claim any additional amounts pursuant to this Section 3.12, it shall provide prompt notice thereof to the Borrowers, through the Administrative Agent, certifying (x) that one of the events described in this Section 3.12 has occurred and describing in reasonable detail the nature of such event, (y) as to the increased cost or reduced amount resulting from such event and (z) as to the additional amount demanded by such Lender and a reasonably detailed explanation of the calculation thereof. Such a certificate as to any additional amounts payable pursuant to this Section 3.12 submitted by such Lender, through the Administrative Agent, to the Borrowers shall be conclusive and binding on the parties hereto in the absence of manifest error. This covenant shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

41

3.13 Taxes.

(a) Except as provided below in this Section 3.13, all payments made by the Borrowers under this Credit Agreement and any Notes shall be made free and clear of, and without deduction or withholding for or on account of, any present or future income, stamp or other taxes, levies, imposts, duties, charges, fees, deductions or withholdings, now or hereafter imposed, levied, collected, withheld or assessed by any court, or governmental body, agency or other official, excluding taxes measured by or imposed upon the overall net income of any Lender or its applicable lending office, or any branch or affiliate thereof, and all franchise taxes, branch taxes, taxes on doing business or taxes on the overall capital or net worth of any Lender or its applicable lending office, or any branch or affiliate thereof, in each case imposed in lieu of net income taxes: (i) by the jurisdiction under the laws of which such Lender, applicable lending office, branch or affiliate is organized or is located, or in which its principal executive office is located, or any nation within which such jurisdiction is located or any political subdivision thereof; or
(ii) by reason of any connection between the jurisdiction imposing such tax and such Lender, applicable lending office, branch or affiliate other than a connection arising solely from such Lender having executed, delivered or performed its obligations, or received payment under or enforced, this Credit Agreement or any Notes. If any such non-excluded taxes, levies, imposts, duties, charges, fees, deductions or withholdings ("Non-Excluded Taxes") are required to be withheld from any amounts payable to the Administrative Agent or any Lender hereunder or under any Notes, (A) the amounts so payable to the Administrative Agent or such Lender shall be increased to the extent necessary to yield to the Administrative Agent or such Lender (after payment of all Non-Excluded Taxes) interest on any such other amounts payable hereunder at the rates or in the amounts specified in this Credit Agreement and any Notes, provided, however, that the Borrowers shall be entitled to deduct and withhold any Non-Excluded Taxes and shall not be required to increase any such amounts payable to any Lender that is not organized under the laws of the United States of America or a state thereof if such Lender fails to comply with the requirements of paragraph (b) of this Section 3.13 whenever any Non-Excluded Taxes are payable by the Borrowers, and (B) as promptly as possible after requested the Borrowers shall send to the Administrative Agent for its own account or for the account of such Lender, as the case may be, a certified copy of an original official receipt received by the Borrowers showing payment thereof. If the Borrowers fail to pay any Non-Excluded Taxes when due to the appropriate taxing authority or fails to remit to the Administrative Agent the required receipts or other required documentary evidence, the Borrowers shall indemnify the Administrative Agent and any Lender for any incremental taxes, interest or penalties that may become payable by the Administrative Agent or any Lender as a result of any such failure. The agreements in this subsection shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

(b) Each Lender that is not incorporated under the laws of the United States of America or a state thereof shall:

(i) (A) on or before the date of any payment by the Borrowers under this Credit Agreement or Notes to such Lender, deliver to the Borrowers and the

42

Administrative Agent (x) two duly completed copies of United States Internal Revenue Service Form 1001 or 4224, or successor applicable form, as the case may be, certifying that it is entitled to receive payments under this Credit Agreement and any Notes without deduction or withholding of any United States federal income taxes and (y) an Internal Revenue Service Form W-8 or W-9, or successor applicable form, as the case may be, certifying that it is entitled to an exemption from United States backup withholding tax;

(B) deliver to the Borrowers and the Administrative Agent two further copies of any such form or certification on or before the date that any such form or certification expires or becomes obsolete and after the occurrence of any event requiring a change in the most recent form previously delivered by it to the Borrowers; and

(C) obtain such extensions of time for filing and complete such forms or certifications as may reasonably be requested by the Borrowers or the Administrative Agent; or

(ii) in the case of any such Lender that is not a "bank" within the meaning of Section 881(c)(3)(A) of the Internal Revenue Code, (A) represent to the Borrowers (for the benefit of the Borrowers and the Administrative Agent) that it is not a bank within the meaning of Section 881(c)(3)(A) of the Internal Revenue Code, (B) agree to furnish to the Borrowers, on or before the date of any payment by the Borrowers, with a copy to the Administrative Agent, two accurate and complete original signed copies of Internal Revenue Service Form W-8, or successor applicable form certifying to such Lender's legal entitlement at the date of such certificate to an exemption from U.S. withholding tax under the provisions of Section 881(c) of the Internal Revenue Code with respect to payments to be made under this Credit Agreement and any Notes (and to deliver to the Borrowers and the Administrative Agent two further copies of such form on or before the date it expires or becomes obsolete and after the occurrence of any event requiring a change in the most recently provided form and, if necessary, obtain any extensions of time reasonably requested by the Borrowers or the Administrative Agent for filing and completing such forms), and (C) agree, to the extent legally entitled to do so, upon reasonable request by the Borrowers, to provide to the Borrowers (for the benefit of the Borrowers and the Administrative Agent) such other forms as may be reasonably required in order to establish the legal entitlement of such Lender to an exemption from withholding with respect to payments under this Credit Agreement and any Notes.

Notwithstanding the above, if any change in treaty, law or regulation has occurred after the date such Person becomes a Lender hereunder which renders all such forms inapplicable or which would prevent such Lender from duly completing and delivering any such form with respect to it and such Lender so advises the Borrowers and the Administrative Agent then such Lender shall be exempt from such requirements. Each Person that shall become a Lender or a participant of a Lender pursuant to Section 11.3 shall, upon the effectiveness of the related transfer, be required to provide all of the forms, certifications and statements

43

required pursuant to this subsection (b); provided that in the case of a participant of a Lender, the obligations of such participant of a Lender pursuant to this subsection (b) shall be determined as if the participant of a Lender were a Lender except that such participant of a Lender shall furnish all such required forms, certifications and statements to the Lender from which the related participation shall have been purchased.

3.14 Compensation.

Except as expressly set forth in Section 3.3(c), the Borrowers promise to indemnify each Lender and to hold each Lender harmless from any loss or expense which such Lender may sustain or incur as a consequence of (a) default by the Borrowers in making a borrowing of, conversion into or continuation of Eurodollar Loans after the Borrowers have given a notice requesting the same in accordance with the provisions of this Credit Agreement, (b) default by the Borrowers in making any prepayment of a Eurodollar Loan after the Borrowers have given a notice thereof in accordance with the provisions of this Credit Agreement and (c) the making of a prepayment of Eurodollar Loans on a day which is not the last day of an Interest Period with respect thereto. Such indemnification shall be calculated by the Administrative Agent and may include an amount equal to (i) the amount of interest which would have accrued on the amount so prepaid, or not so borrowed, converted or continued, for the period from the date of such prepayment or of such failure to borrow, convert or continue to the last day of the applicable Interest Period (or, in the case of a failure to borrow, convert or continue, the Interest Period that would have commenced on the date of such failure) in each case at the applicable rate of interest for such Eurodollar Loans provided for herein minus (ii) the amount of interest which would have accrued to such Lender on such amount by placing such amount on deposit for a comparable period with leading banks in the interbank Eurodollar market. The agreements in this Section shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder. Notwithstanding the foregoing, any prepayment of a Eurodollar Loan made hereunder (as a result of a mandatory requirement of this Credit Agreement) within thirty (30) days of the end of the Interest Period with respect to such Eurodollar Loan, shall not be subject to this Section 3.14.

3.15 Mitigation; Mandatory Assignment.

Each Lender shall use reasonable efforts to avoid or mitigate any increased cost or suspension of the availability of an interest rate under Sections 3.9 through 3.14 inclusive to the greatest extent practicable (including transferring the Loans to another lending office or affiliate of a Lender) unless, in the opinion of such Lender, such efforts would be likely to have an adverse effect upon it. In the event a Lender makes a request to the Borrowers for additional payments in accordance with Sections 3.9, 3.10, 3.11, 3.12, 3.13 or 3.14 or a Lender becomes a Defaulting Lender, then, provided that no Default or Event of Default has occurred and is continuing at such time, the Borrowers may, at their own expense (such expense to include any transfer fee payable to the Administrative Agent under Section 11.3(b) and any expense pursuant to Section 3.14), and in their sole discretion, require such Lender to transfer and assign in whole (but not in part), without recourse (in accordance with and subject to the terms and conditions of Section 11.3(b)), all of its interests, rights and obligations under this Credit Agreement to an assignee which shall assume such assigned obligations (which assignee may be another Lender, if a Lender accepts such assignment); provided that (a) such assignment shall not conflict with any law, rule or regulation or order of any court or other governmental authority and (b) the

44

Borrowers or such assignee shall have paid to the assigning Lender in immediately available funds the principal of and interest accrued to the date of such payment on the portion of the Loans hereunder held by such assigning Lender and all other amounts owed to such assigning Lender hereunder, including amounts owed pursuant to Sections 3.9 through 3.14.

SECTION 4

GUARANTY

4.1 Guaranty of Payment.

Subject to Section 4.7 below, each of the Guarantors hereby, jointly and severally, unconditionally guarantees to each Lender, the prompt payment of the Obligations in full when due (whether at stated maturity, as a mandatory prepayment, by acceleration or otherwise). This Guaranty is a guaranty of payment and not of collection and is a continuing guaranty and shall apply to all Obligations whenever arising.

4.2 Obligations Unconditional.

The obligations of the Guarantors hereunder are absolute and unconditional, irrespective of the value, genuineness, validity, regularity or enforceability of any of the Credit Documents or any other agreement or instrument referred to therein, to the fullest extent permitted by applicable law, irrespective of any other circumstance whatsoever which might otherwise constitute a legal or equitable discharge or defense of a surety or guarantor. Each Guarantor agrees that this Guaranty may be enforced by the Lenders without the necessity at any time of resorting to or exhausting any other security or collateral and without the necessity at any time of having recourse to the Notes or any other of the Credit Documents or any collateral, if any, hereafter securing the Obligations or otherwise and each Guarantor hereby waives the right to require the Lenders to proceed against the Borrowers or any other Person (including a co-guarantor) or to require the Lenders to pursue any other remedy or enforce any other right. Each Guarantor further agrees that it shall have no right of subrogation, indemnity, reimbursement or contribution against the Borrowers or any other Guarantor of the Obligations for amounts paid under this Guaranty until such time as the Lenders have been paid in full, all Commitments under the Credit Agreement have been terminated and no Person or Governmental Authority shall have any right to request any return or reimbursement of funds from the Lenders in connection with monies received under the Credit Documents. Each Guarantor further agrees that nothing contained herein shall prevent the Lenders from suing on the Notes or any of the other Credit Documents or foreclosing its security interest in or Lien on any collateral, if any, securing the Obligations or from exercising any other rights available to it under this Credit Agreement, the Notes, any other of the Credit Documents, or any other instrument of security, if any, and the exercise of any of the aforesaid rights and the completion of any foreclosure proceedings shall not constitute a discharge of any of any Guarantor's obligations hereunder; it being the purpose and intent of each Guarantor that its obligations hereunder shall be absolute, independent and unconditional under any and all circumstances. Neither any Guarantor's obligations under this Guaranty nor any remedy for the enforcement thereof shall be impaired, modified, changed or released in any manner whatsoever by an impairment, modification, change, release or limitation of the liability of the Borrowers or by reason of the bankruptcy or insolvency of

45

the Borrowers. Each Guarantor waives any and all notice of the creation, renewal, extension or accrual of any of the Obligations and notice of or proof of reliance of by the Administrative Agent or any Lender upon this Guarantee or acceptance of this Guarantee. The Obligations, and any of them, shall conclusively be deemed to have been created, contracted or incurred, or renewed, extended, amended or waived, in reliance upon this Guarantee. All dealings between the Borrowers and any of the Guarantors, on the one hand, and the Administrative Agent and the Lenders, on the other hand, likewise shall be conclusively presumed to have been had or consummated in reliance upon this Guarantee. The Guarantors further agree to all rights of set-off as set forth in Section 11.2.

4.3 Modifications.

Each Guarantor agrees that (a) all or any part of the security now or hereafter held for the Credit Party Obligations, if any, may be exchanged, compromised or surrendered from time to time; (b) the Lenders shall not have any obligation to protect, perfect, secure or insure any such security interests, liens or encumbrances now or hereafter held, if any, for the Obligations or the properties subject thereto; (c) the time or place of payment of the Obligations may be changed or extended, in whole or in part, to a time certain or otherwise, and may be renewed or accelerated, in whole or in part; (d) the Borrowers and any other party liable for payment under the Credit Documents may be granted indulgences generally; (e) any of the provisions of the Notes or any of the other Credit Documents may be modified, amended or waived; (f) any party (including any co-guarantor) liable for the payment thereof may be granted indulgences or be released; and (g) any deposit balance for the credit of the Borrowers or any other party liable for the payment of the Obligations or liable upon any security therefor may be released, in whole or in part, at, before or after the stated, extended or accelerated maturity of the Obligations, all without notice to or further assent by such Guarantor, which shall remain bound thereon, notwithstanding any such exchange, compromise, surrender, extension, renewal, acceleration, modification, indulgence or release.

4.4 Waiver of Rights.

Each Guarantor expressly waives to the fullest extent permitted by applicable law: (a) notice of acceptance of this Guaranty by the Lenders and of all extensions of credit to the Borrowers by the Lenders; (b) presentment and demand for payment or performance of any of the Obligations; (c) protest and notice of dishonor or of default (except as specifically required in the Credit Agreement) with respect to the Obligations or with respect to any security therefor; (d) notice of the Lenders obtaining, amending, substituting for, releasing, waiving or modifying any security interest, lien or encumbrance, if any, hereafter securing the Obligations, or the Lenders' subordinating, compromising, discharging or releasing such security interests, liens or encumbrances, if any; and (e) all other notices to which such Guarantor might otherwise be entitled.

4.5 Reinstatement.

The obligations of the Guarantors under this Section 4 shall be automatically reinstated if and to the extent that for any reason any payment by or on behalf of any Person in respect of the Obligations is rescinded or must be otherwise restored by any holder of any of the Obligations, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, and each Guarantor agrees that it will indemnify the Administrative Agent and each Lender on demand for

46

all reasonable costs and expenses (including, without limitation, reasonable fees of counsel) incurred by the Administrative Agent or such Lender in connection with such rescission or restoration, including any such costs and expenses incurred in defending against any claim alleging that such payment constituted a preference, fraudulent transfer or similar payment under any bankruptcy, insolvency or similar law.

4.6 Remedies.

The Guarantors agree that, as between the Guarantors, on the one hand, and the Administrative Agent and the Lenders, on the other hand, the Obligations may be declared to be forthwith due and payable as provided in
Section 9 (and shall be deemed to have become automatically due and payable in the circumstances provided in Section 9) notwithstanding any stay, injunction or other prohibition preventing such declaration (or preventing such Obligations from becoming automatically due and payable) as against any other Person and that, in the event of such declaration (or such Obligations being deemed to have become automatically due and payable), such Obligations (whether or not due and payable by any other Person) shall forthwith become due and payable by the Guarantors. The Guarantors agree that during any Collateral Period their obligations hereunder may be secured in accordance with the terms of the Collateral Documents and that the Lenders may exercise their remedies thereunder in accordance with the terms thereof.

4.7 Limitation of Guaranty.

Notwithstanding any provision to the contrary contained herein or in any of the other Credit Documents, to the extent the obligations of any Guarantor shall be adjudicated to be invalid or unenforceable for any reason (including, without limitation, because of any applicable state or federal law relating to fraudulent conveyances or transfers) then the obligations of such Guarantor hereunder shall be limited to the maximum amount that is permissible under applicable law (whether federal or state and including, without limitation, the Bankruptcy Code).

4.8 Rights of Contribution.

The Credit Parties agree among themselves that, in connection with payments made hereunder, each Credit Party shall have contribution rights against the other Credit Parties as permitted under applicable law. Such contribution rights shall be subordinate and subject in right of payment to the obligations of the Credit Parties under the Credit Documents and no Credit Party shall exercise such rights of contribution until all Credit Party Obligations have been paid in full and the Commitments terminated.

47

SECTION 5

CONDITIONS PRECEDENT

5.1 Closing Conditions.

The obligation of the Lenders to enter into this Credit Agreement and make the initial Extensions of Credit is subject to satisfaction of the following conditions:

(a) Executed Credit Documents. Receipt by the Administrative Agent of duly executed copies of: (i) this Credit Agreement; (ii) the Notes; (iii) the Pledge Agreements; and (iv) all other Credit Documents required to be delivered on or before the Effective Date, each in form and substance reasonably acceptable to the Administrative Agent in its sole discretion.

(b) Partnership Documents. With respect to each Credit Party that is a partnership, receipt by the Administrative Agent of the following:

(i) Authorization. Authorization of the general partner(s) of such Credit Party, as of the Closing Date, approving and adopting the Credit Documents to be executed by such Credit Party and authorizing the execution and delivery thereof.

(ii) Partnership Agreements. Certified copies of the partnership agreement of such Credit Party, together with all amendments thereto.

(iii) Certificates of Good Standing or Existence. Certificate of good standing or existence for such Credit Party issued as of a recent date by its state of organization and each other state where the failure to qualify or be in good standing could have a Material Adverse Effect.

(iv) Incumbency. An incumbency certificate of the general partner(s) of such Credit Party, certified by a secretary or assistant secretary of such general partner to be true and correct as of the Closing Date.

(c) Corporate Documents. With respect to each Credit Party that is a corporation, receipt by the Administrative Agent of the following:

(i) Charter Documents. Copies of the articles or certificates of incorporation or other charter documents of each such Credit Party certified to be true and complete as of a recent date by the appropriate Governmental Authority of the state or other jurisdiction of its incorporation and certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Closing Date.

(ii) Bylaws. A copy of the bylaws of each such Credit Party certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Effective Date.

48

(iii) Resolutions. Copies of resolutions approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof, certified by a secretary or assistant secretary of such Credit Party to be true and correct and in full force and effect as of the Effective Date.

(iv) Good Standing. Copies of (A) certificates of good standing, existence or their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of incorporation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect and (B) to the extent available, a certificate indicating payment of all corporate franchise taxes certified as of a recent date by the appropriate governmental taxing authorities.

(v) Incumbency. An incumbency certificate of such Credit Party certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Effective Date.

(d) Limited Liability Company Documents. With respect to each Credit Party that is a limited liability company, receipt by the Administrative Agent of the following:

(i) Certificate of Formation. A copy of the certificate of formation of such Credit Party certified to be true and complete by the appropriate Governmental Authority of the state or jurisdiction of its formation and certified by the sole member of such Credit Party to be true and correct as of the Closing Date.

(ii) LLC Agreement. A copy of the LLC Agreement of such Credit Party certified by the sole member of such Credit Party to be true and correct as of the Closing Date.

(iii) Resolutions. Copies of resolutions approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof.

(iv) Good Standing. Copies of certificates of good standing, existence of their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of formation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect.

(e) Trust Documents. With respect to each Credit Party that is a REIT, receipt by the Administrative Agent of the following:

(i) Declaration of Trust. A copy of the Declaration of Trust of such Credit Party certified to be true and complete by the appropriate Governmental Authority of the state or jurisdiction of its formation and certified by the trustee of such Credit Party to be true and correct as of the Closing Date.

49

(ii) Bylaws. A copy of the Bylaws of such Credit Party certified by the trustee of such Credit Party to be true and complete as of the Closing Date.

(iii) Resolutions. Copies of the resolutions of the Board of Trustees of such Credit Party approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof.

(iv) Good Standing. Copies of certificates of good standing, existence of their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of formation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect.

(f) Financial Statements. Receipt and approval by the Lenders of: (i) the consolidated financial statements of the Credit Parties and their Subsidiaries for each of the three years ending December 31, 1995, 1996 and 1997, to the extent available, including balance sheets and income and cash flow statements, audited by nationally recognized independent public accountants and containing an unqualified opinion of such firm that such statements present fairly, in all material respects, the consolidated financial position and results of operations of such Person, and are prepared in conformity with GAAP, and (ii) interim consolidated financial statements of the Credit Parties and their Subsidiaries for the six months ending June 30, 1998, including balance sheets and income and cash flow statements, accompanied by a certificate of the chief financial officer of BRT to the effect that such annual Financial Statements fairly present in all material respects the financial condition of the Credit Parties and their Subsidiaries and have been prepared in accordance with GAAP, subject to changes resulting from audit and normal year-end audit adjustments.

(g) Financial Projections and Other Information. Receipt and approval by the Lenders of (i) financial projections for the Combined Parties, (ii) summary financial projections for each Property, for the calendar year ending 1998, in a form acceptable to the Lenders, and such other financial information as the Lenders may require and
(iii) pro forma financial statements of the Credit Parties and their Subsidiaries, including a balance sheet, an income statement and a cash flow statement, giving effect to the acquisition of the Project Bell Properties, together with a certificate showing compliance with the financial covenants in Section 7.2 after giving effect to such acquisition.

(h) Opinion of Counsel. Receipt by the Administrative Agent of opinions (which shall cover, among other things, authority, legality, validity, binding effect and enforceability), satisfactory to the Administrative Agent, addressed to the Administrative Agent on behalf of the Lenders and dated as of the Closing Date, from legal counsel to the Credit Parties.

(i) Material Adverse Effect. There shall not have occurred a change since June 30, 1998 that has had or could reasonably be expected to have a Material Adverse Effect.

50

(j) Litigation. There shall not exist any pending or threatened action, suit, investigation or proceeding against a Credit Party or any of their Subsidiaries that would have or would reasonably be expected to have a Material Adverse Effect.

(k) Officer's Certificates. The Administrative Agent shall have received a certificate on behalf of the Credit Parties as of the Closing Date stating that (i) the Credit Parties and each of their Subsidiaries are in compliance with all existing material financial obligations, (ii) no action, suit, investigation or proceeding is pending or threatened in any court or before any arbitrator or governmental instrumentality that purports to effect a Credit Party or any transaction contemplated by the Credit Documents, if such action, suit, investigation or proceeding could have or could be reasonably expected to have a Material Adverse Effect, (iii) the financial statements and information delivered pursuant to Section 5.1(f) and (g) were prepared in good faith and using reasonable assumptions and (iv) immediately after giving effect to this Credit Agreement, the other Credit Documents and all the transactions contemplated therein to occur on such date, (A) each of the Credit Parties is Solvent, (B) no Default or Event of Default exists, (C) all representations and warranties contained herein and in the other Credit Documents are true and correct in all material respects, and (D) the Credit Parties and their Subsidiaries are in compliance as of June 30, 1998 (on a pro forma basis giving effect to the acquisition of the Project Bell Properties) with each of the financial covenants set forth in Section 7.2.

(l) Fees and Expenses. Payment by the Borrowers of all fees and expenses owed by them to the Lenders and the Administrative Agent, including, without limitation, payment to the Administrative Agent of the fees set forth herein and in the Fee Letter.

(m) Consents and Approvals. All governmental, shareholder, partner and third-party consents and approvals necessary or, in the opinion of the Administrative Agent, desirable in connection with the Loans and the transactions contemplated under the Credit Documents shall have been duly obtained and shall be in full force and effect, and a copy of each such consent or approval shall have been delivered to the Administrative Agent.

(n) Due Diligence. Completion by the Lenders of all due diligence with respect to the Combined Parties, including, but not limited to, a review of all existing Indebtedness of the Combined Parties and all Properties, including, but not limited to, the Project Bell Properties.

(o) Existing Credit Agreements. Receipt by the Administrative Agent of satisfactory evidence of the repayment of all loans and obligations under the Existing Credit Agreement and the Existing Bridge Facility and the termination of the commitments thereunder.

(p) Acquisition. Receipt by the Administrative Agent of evidence that the Borrowers have acquired (or are simultaneously acquiring), on terms acceptable to the Administrative Agent, the Project Bell Properties for a price not to exceed $620 million.
(q) Other. Receipt by the Lenders of such other documents, instruments, agreements or information as reasonably and timely requested by any Lender, including, but not limited to, information regarding litigation, tax, accounting, labor, insurance, pension

51

liabilities (actual or contingent), real estate leases, material contracts, debt agreements, property ownership and contingent liabilities of the Credit Parties and their Subsidiaries.

5.2 Conditions to All Extensions of Credit.

In addition to the conditions precedent stated elsewhere herein, the Lenders shall not be obligated to make Loans nor shall an Issuing Lender be required to issue or extend a Letter of Credit unless:

(a) Delivery of Notice. The Borrowers shall have delivered
(i) in the case of a Loan, a Notice of Borrowing, duly executed and completed, by the time specified in Section 2.1 and (ii) in the case of any Letter of Credit, the Issuing Lender shall have received an appropriate request for issuance in accordance with the provisions of
Section 2.2.

(b) Representations and Warranties. The representations and warranties made by the Credit Parties in any Credit Document are true and correct in all material respects at and as if made as of such date except to the extent they expressly relate to an earlier date.

(c) No Default. No Default or Event of Default shall exist or be continuing either prior to or after giving effect thereto.

(d) Availability. Immediately after giving effect to the making of the requested Revolving Loan (and the application of the proceeds thereof), or the issuance of a Letter of Credit, as the case may be, (i) the sum of the Revolving Loans outstanding plus LOC Obligations outstanding shall not exceed the Revolving Committed Amount less, for any Property under construction and development that is less than 50% preleased, the construction and development costs remaining to be incurred for such Property unless and until outside construction financing for the project is obtained (plus the amount of the requested Revolving Loan if such Revolving Loan is being used for such construction and development costs), and (ii) the aggregate principal amount of Revolving Loans advanced for construction and development of Properties shall not exceed (A) for such Properties that are less than 50% preleased, $50,000,000 and (B) for all such Properties, $100,000,000.

(e) Development and Construction. If the proceeds of the requested Revolving Loan are to be used for development and construction of a Property, the Borrowers have notified the Administrative Agent with respect thereto.

(f) Restrictions on Loans. After giving effect to the making of the requested Revolving Loan, the Borrowers shall be in compliance with the terms of Section 2.1(f).

The delivery of each Notice of Borrowing shall constitute a representation and warranty by the Borrowers of the correctness of the matters specified in subsections (b), (c), (d), (e) and (f) above.

52

SECTION 6

REPRESENTATIONS AND WARRANTIES

The Credit Parties hereby represent to the Administrative Agent and each Lender that:

6.1 Financial Condition.

The financial statements delivered to the Lenders pursuant to Section 5.1(d) and Section 7.1(a) and (b): (a) have been prepared in accordance with GAAP and (b) present fairly the consolidated financial condition, results of operations and cash flows of the Credit Parties and their Subsidiaries as of such date and for such periods. Since June 30, 1998, there has been no sale, transfer or other disposition by any Credit Party or any of their Subsidiaries of any material part of the business or property of the Credit Parties and their Subsidiaries, taken as a whole, and no purchase or other acquisition by any of them of any business or property (including any capital stock of any other Person) material in relation to the consolidated financial condition of the Credit Parties and their Subsidiaries, taken as a whole, in each case, which, is not (i) reflected in the most recent financial statements delivered to the Lenders pursuant to Section 5.1(f) and Section 7.1 or in the notes thereto or (ii) otherwise permitted by the terms of this Credit Agreement and communicated to the Administrative Agent.

6.2 No Material Change.

Since the later of June 30, 1998 or the date of the last Revolving Loan made under this Credit Agreement, there has been no development or event relating to or affecting a Combined Party which has had or would be reasonably expected to have a Material Adverse Effect.

6.3 Organization and Good Standing.

Each Credit Party (a) is either a partnership, a corporation, a limited liability company or a REIT duly organized, validly existing and in good standing under the laws of the State (or other jurisdiction) of its organization or formation, (b) is duly qualified and in good standing as a foreign partnership, a foreign corporation, a foreign limited liability company or a foreign REIT and authorized to do business in every other jurisdiction unless the failure to be so qualified, in good standing or authorized would not have or would not be expected to have a Material Adverse Effect and (c) has the power and authority to own its properties and to carry on its business as now conducted and as proposed to be conducted.

6.4 Due Authorization.

Each Credit Party (a) has the power and authority to execute, deliver and perform this Credit Agreement and the other Credit Documents to which it is a party and to incur the obligations herein and therein provided for and
(b) is duly authorized to, and has been authorized by all necessary action, to execute, deliver and perform this Credit Agreement and the other Credit Documents to which it is a party.

53

6.5 No Conflicts.

Neither the execution and delivery of the Credit Documents, nor the consummation of the transactions contemplated therein, nor the performance of or compliance with the terms and provisions thereof by a Credit Party will (a) violate or conflict with any provision of its organizational documents, (b) violate, contravene or materially conflict with any Requirement of Law or any other law, regulation (including, without limitation, Regulation U or Regulation X), order, writ, judgment, injunction, decree or permit applicable to it, (c) violate, contravene or conflict with contractual provisions of, or cause an event of default under, any indenture, loan agreement, mortgage, deed of trust, contract or other agreement or instrument to which it is a party or by which it may be bound, the violation of which would have or would be reasonably expected to have a Material Adverse Effect, or (d) result in or require the creation of any Lien upon or with respect to its properties.

6.6 Consents.

Except for consents, approvals and authorizations which have been obtained, no consent, approval, authorization or order of, or filing, registration or qualification with, any court or Governmental Authority or third party in respect of any Credit Party is required in connection with the execution, delivery or performance of this Credit Agreement or any of the other Credit Documents by such Credit Party.

6.7 Enforceable Obligations.

This Credit Agreement and the other Credit Documents have been duly executed and delivered and constitute legal, valid and binding obligations of each Credit Party enforceable against such Credit Party in accordance with their respective terms, except as may be limited by bankruptcy or insolvency laws or similar laws affecting creditors' rights generally or by general equitable principles.

6.8 No Default.

No Combined Party is in default in any respect under any contract, lease, loan agreement, indenture, mortgage, security agreement or other agreement or obligation to which it is a party or by which any of its properties is bound which default would have or would be reasonably expected to have a Material Adverse Effect. No Default or Event of Default has occurred or exists except as previously disclosed in writing to the Lenders.

6.9 Ownership.

Each Combined Party is the owner of, and has good and marketable title to, all of its respective assets and none of such assets is subject to any Lien other than Permitted Liens.

6.10 Indebtedness.

The Combined Parties have no Indebtedness except as otherwise permitted by this Credit Agreement.

54

6.11 Litigation.

There are no actions, suits or legal, equitable, arbitration or administrative proceedings, pending or, to the knowledge of any Credit Party, threatened against, a Combined Party which would have or would be reasonably expected to have a Material Adverse Effect.

6.12 Taxes.

Each Credit Party, and each of its Subsidiaries, has filed, or caused to be filed, all tax returns (federal, state, local and foreign) required to be filed and has paid (a) all amounts of taxes shown thereon to be due (including interest and penalties) and (b) all other taxes, fees, assessments and other governmental charges (including mortgage recording taxes, documentary stamp taxes and intangibles taxes) owing by it, except for such taxes (i) which are not yet delinquent or (ii) that are being contested in good faith and by proper proceedings, and against which adequate reserves are being maintained in accordance with GAAP. No Credit Party is aware of any proposed tax assessments against it or any of its Subsidiaries.

6.13 Compliance with Law.

Each Combined Party is in compliance with all Requirements of Law and all other laws, rules, regulations, orders and decrees (including without limitation Environmental Laws) applicable to it, or to its properties, unless such failure to comply would not have or would not be reasonably expected to have a Material Adverse Effect. No Requirement of Law would be reasonably expected to cause a Material Adverse Effect.

6.14 Compliance with ERISA.

Except as would not result in or be reasonably expected to result in a Material Adverse Effect:

(a) During the five-year period prior to the date on which this representation is made or deemed made: (i) no ERISA Event has occurred, and, to the best of each Credit Party's, each Subsidiary of a Credit Party's and each ERISA Affiliate's knowledge, no event or condition has occurred or exists as a result of which any ERISA Event could reasonably be expected to occur, with respect to any Plan; (ii) no "accumulated funding deficiency," as such term is defined in
Section 302 of ERISA and Section 412 of the Code, whether or not waived, has occurred with respect to any Plan; (iii) each Plan has been maintained, operated, and funded in compliance with its own terms and in material compliance with the provisions of ERISA, the Code, and any other applicable federal or state laws; and (iv) no Lien in favor or the PBGC or a Plan has arisen or is reasonably likely to arise on account of any Plan.

(b) The actuarial present value of all "benefit liabilities" (as defined in Section 4001(a)(16) of ERISA), whether or not vested, under each Single Employer Plan, as of the last annual valuation date prior to the date on which this representation is made or deemed made (determined, in each case, in accordance with Financial Accounting Standards Board

55

Statement 87, utilizing the actuarial assumptions used in such Plan's most recent actuarial valuation report), did not exceed as of such valuation date the fair market value of the assets of such Plan.

(c) No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate has incurred, or, to the best of each such party's knowledge, is reasonably expected to incur, any withdrawal liability under ERISA to any Multiemployer Plan or Multiple Employer Plan. No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate would become subject to any withdrawal liability under ERISA if any such party were to withdraw completely from all Multiemployer Plans and Multiple Employer Plans as of the valuation date most closely preceding the date on which this representation is made or deemed made. No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate has received any notification that any Multiemployer Plan is in reorganization (within the meaning of Section 4241 of ERISA), is insolvent (within the meaning of Section 4245 of ERISA), or has been terminated (within the meaning of Title IV of ERISA), and no Multiemployer Plan is, to the best of each such party's knowledge, reasonably expected to be in reorganization, insolvent, or terminated.

(d) No prohibited transaction (within the meaning of Section 406 of ERISA or Section 4975 of the Code) or breach of fiduciary responsibility has occurred with respect to a Plan which has subjected or may subject any Credit Party, any Subsidiary of a Credit Party or any ERISA Affiliate to any liability under Sections 406, 409, 502(i), or 502(l) of ERISA or Section 4975 of the Code, or under any agreement or other instrument pursuant to which any Credit Party, any Subsidiary of a Credit Party or any ERISA Affiliate has agreed or is required to indemnify any person against any such liability.

(e) No Credit Party, Subsidiary of a Credit Party nor any of their ERISA Affiliates has material liability with respect to "expected post-retirement benefit obligations" within the meaning of the Financial Accounting Standards Board Statement 106. Each Plan which is a welfare plan (as defined in Section 3(1) of ERISA) to which Sections 601-609 of ERISA and Section 4980B of the Code apply has been administered in compliance in all material respects with such sections.

6.15 Organization Structure/Subsidiaries.

As of the Closing Date, (a) Schedule 6.15 is a complete and accurate organization chart of the Combined Parties, and (b) no Credit Party has any Subsidiaries or owns an interest, directly or indirectly, in any joint venture, except as set forth on Schedule 6.15. During any Collateral Period in which the Lenders receive Stock Collateral, Schedule 6.15 shall be amended to include the amount and percentages of equity interests outstanding with respect to each Subsidiary of a Credit Party and such other information regarding the ownership interests as reasonably requested by the Administrative Agent. The outstanding equity interest of all Subsidiaries of the Credit Parties are validly issued, fully paid and non-assessable and are owned by the Credit Parties free and clear of all Liens. Schedule 6.15 shall be updated as of the end of each fiscal quarter as set forth in Section 7.1(c).

56

6.16 Use of Proceeds; Margin Stock.

The proceeds of the Loans hereunder will be used solely for the purposes specified in Section 7.10. None of the proceeds of the Loans will be used in a manner that would violate Regulation U, Regulation X, or Regulation T. No proceeds of the Loans hereunder will be used for the acquisition of another Person unless the board of directors (or other comparable governing body) or stockholders (or other equity owners), as appropriate, of such Person has approved such acquisition.

6.17 Government Regulation.

No Credit Party, nor any of its Subsidiaries, is subject to regulation under the Public Utility Holding Company Act of 1935, the Federal Power Act, the Investment Company Act of 1940 or the Interstate Commerce Act, each as amended. In addition, no Credit Party, nor any of its Subsidiaries, is
(a) an "investment company" registered or required to be registered under the Investment Company Act of 1940, as amended, or controlled by such a company, or (b) a "holding company," or a "Subsidiary company" of a "holding company," or an "affiliate" of a "holding company" or of a "Subsidiary" or a "holding company," within the meaning of the Public Utility Holding Company Act of 1935, as amended. No director, executive officer or principal shareholder of a Credit Party or any of its Subsidiaries is a director, executive officer or principal shareholder of any Lender. For the purposes hereof the terms "director," "executive officer" and "principal shareholder" (when used with reference to any Lender) have the respective meanings assigned thereto in Regulation O issued by the Board of Governors of the Federal Reserve System.

6.18 Environmental Matters.

(a) Except as would not have or be reasonably expected to have a Material Adverse Effect:

(i) Each of the Properties and all operations at the Properties are in material compliance with all applicable Environmental Laws, and there is no violation of any Environmental Law with respect to the Properties or the businesses operated by a Credit Party or any of its Subsidiaries (the "Businesses"), and there are no conditions relating to the Businesses or Properties that would be reasonably expected to give rise to liability under any applicable Environmental Laws.

(ii) No Credit Party, nor any of its Subsidiaries, has received any written notice of, or inquiry from any Governmental Authority regarding, any violation, alleged violation, non-compliance, liability or potential liability regarding Hazardous Materials or compliance with Environmental Laws with regard to any of the Properties or the Businesses, nor does any Credit Party or any of its Subsidiaries have knowledge that any such notice is being threatened.

(iii) Hazardous Materials have not been transported or disposed of from the Properties, or generated, treated, stored or disposed of at, on or under any of the Properties or any other location, in each case by, or on behalf or with the permission of, any Credit Party or any of its Subsidiaries in a manner that would reasonably be expected to give rise to liability under any applicable Environmental Law.

57

(iv) No judicial proceeding or governmental or administrative action is pending or, to the knowledge of any Credit Party or any of its Subsidiaries, threatened, under any Environmental Law to which any Credit Party or any of its Subsidiaries is or will be named as a party, nor are there any consent decrees or other decrees, consent orders, administrative orders or other orders, or other administrative or judicial requirements outstanding under any Environmental Law with respect to any Credit Party or any of its Subsidiaries, the Properties or the Businesses, in any amount reportable under the federal Comprehensive Environmental Response, Compensation and Liability Act or any analogous state law, except releases in compliance with any Environmental Laws.

(v) There has been no release or threat of release of Hazardous Materials at or from the Properties, or arising from or related to the operations (including, without limitation, disposal) of a Credit Party or any of its Subsidiaries in connection with the Properties or otherwise in connection with the Businesses except in compliance with Environmental Laws.

(vi) None of the Properties contains, or to the best of our knowledge has previously contained, any Hazardous Materials at, on or under the Properties in amounts or concentrations that, if released, constitute or constituted a violation of, or could give rise to liability under, Environmental Laws.

(vii) No Credit Party, nor any of its Subsidiaries, has assumed any liability of any Person (other than another Borrower) under any Environmental Law.

(b) Each Credit Party, and each of its Subsidiaries, has adopted procedures that are designed to (i) ensure that each such party, any of its operations and each of the properties owned or leased by such party remains in compliance with applicable Environmental Laws and (ii) minimize any liabilities or potential liabilities that each such party, any of its operations and each of the properties owned or leased by each such party may have under applicable Environmental Laws.

6.19 Solvency.

Each Credit Party, is and, after consummation of the transactions contemplated by this Credit Agreement, will be Solvent.

6.20 Investments.

All Investments of the Credit Parties and their Subsidiaries are Permitted Investments.

58

6.21 Location of Properties.

As of the Closing Date, set forth on Schedule 6.21 is (a) a list of all Properties (with street address, county and state where located) and the owner of such Property (b) a list of all Unsecured Properties. Schedule 6.21 shall be updated as of the end of each fiscal quarter as set forth in Section 7.1(c).

6.22 Disclosure.

Neither this Credit Agreement nor any financial statements delivered to the Lenders nor any other document, certificate or statement furnished to the Lenders by or on behalf of any Credit Party in connection with the transactions contemplated hereby contains any untrue statement of a material fact or omits to state a material fact necessary in order to make the statements contained therein or herein not misleading in light of the circumstances in which made; provided, however, that the Credit Parties make no representation or warranty regarding the information delivered pursuant to
Section 7.1(i).

6.23 Licenses, etc.

The Combined Parties have obtained, and hold in full force and effect, all franchises, licenses, permits, certificates, authorizations, qualifications, accreditations, easements, rights of way and other rights, consents and approvals which are necessary for the operation of their respective businesses as presently conducted, except where the failure to obtain the same would not have or would not reasonably be expected to have a Material Adverse Effect.

6.24 No Burdensome Restrictions.

No Combined Party is a party to any agreement or instrument or subject to any other obligation or any charter or corporate restriction or any provision of any applicable law, rule or regulation which, individually or in the aggregate, would have or would be reasonably expected to have a Material Adverse Effect.

6.25 Year 2000 Compliance.

Each Credit Party reasonably believes that the Year 2000 Problem has been appropriately addressed by it and the Year 2000 Problem will not exist with respect to it or any other Combined Party on and after January 1, 2000, to the extent such Year 2000 Problem would cause or be reasonably expected to cause a Material Adverse Effect.

6.26 Excluded Material Subsidiaries.

With respect to the Excluded Material Subsidiaries:

(a) Brandywine Holdings I, Inc. holds a nominal interest in BOP to ensure that BOP will at all times have at least two partners, and has no other activity and owns no other assets.

59

(b) Brandywine Holdings II and Brandywine Holdings III have no assets or activity and are in the process of being dissolved.

(c) Brandywine Realty Services Corporation ("BRSCO") provides services to BOP and is Subsidiaries, as well as third parties, but does not own any Properties. Although BOP owns ninety five percent of the financial interest in BRSCO through ownership of preferred and common interests, substantially all of the common equity in BRSCO is held by a partnership in which neither BOP nor BRT has any ownership.

(d) Each of the remaining Excluded Materials Subsidiaries is an entity which is subject to provisions in its charter documents that require it to be a "bankruptcy remote" or "single purpose" entity and therefore prohibit it from, among other things, guaranteeing or becoming jointly and severally liable for the Indebtedness of others.

SECTION 7

AFFIRMATIVE COVENANTS

Each Credit Party hereby covenants and agrees that so long as this Credit Agreement is in effect and until the Loans and LOC Obligations, together with interest and fees and other obligations then due and payable hereunder, have been paid in full and the Commitments and Letters of Credit hereunder shall have terminated:

7.1 Information Covenants.

The Borrowers will furnish, or cause to be furnished, to the Administrative Agent and each of the Lenders:

(a) Annual Financial Statements. As soon as available, and in any event within 90 days after the close of each fiscal year of the Credit Parties, a consolidated balance sheet and income statement of the Credit Parties and their Subsidiaries as of the end of such fiscal year, together with related consolidated statements of operations and retained earnings and of cash flows for such fiscal year, setting forth in comparative form consolidated figures for the preceding fiscal year, all such financial information described above to be in reasonable form and detail and audited by independent certified public accountants of recognized national standing reasonably acceptable to the Administrative Agent and whose opinion shall be to the effect that such financial statements have been prepared in accordance with GAAP (except for changes with which such accountants concur) and shall not be limited as to the scope of the audit or qualified in any manner.

(b) Quarterly Financial Statements. As soon as available, and in any event within 45 days after the close of each fiscal quarter of the Credit Parties, a consolidated balance sheet and income statement of the Credit Parties and their Subsidiaries, as of the end of such fiscal quarter, together with related consolidated statements of operations and

60

retained earnings and of cash flows for such fiscal quarter in each case setting forth in comparative form consolidated figures for (A) the corresponding period of the preceding fiscal year and (B) management's proposed budget for such period, all such financial information described above to be in reasonable form and detail and reasonably acceptable to the Administrative Agent, and accompanied by a certificate of the chief financial officer of BOP to the effect that such quarterly financial statements fairly present in all material respects the financial condition of the Credit Parties and their Subsidiaries and have been prepared in accordance with GAAP, subject to changes resulting from audit and normal year-end audit adjustments.

(c) Officer's Certificate. At the time of delivery of the financial statements provided for in Sections 7.1(a) and 7.1(b) above, a certificate of the chief financial officer of BRT, substantially in the form of Exhibit 7.1(c), (i) demonstrating compliance with the financial covenants contained in Section 7.2 by calculation thereof as of the end of each such fiscal period, (ii) stating that no Default or Event of Default exists, or if any Default or Event of Default does exist, specifying the nature and extent thereof and what action the Borrowers propose to take with respect thereto, (iii) providing information regarding (A) Investments in a manner to demonstrate compliance with Section 8.6, (B) construction and development projects in a manner to demonstrate compliance with
Section 8.12 and (C) dividends and redemption of shares in a manner to demonstrate compliance with Section 8.7 and (iv) updating Schedule 6.15 and Schedule 6.21 as appropriate.

(d) Accountant's Certificate. Within the period for delivery of the annual financial statements provided in Section 7.1(a), a certificate of the accountants conducting the annual audit stating that they have reviewed this Credit Agreement and stating further whether, in the course of their audit, they have become aware of any Default or Event of Default and, if any such Default or Event of Default exists, specifying the nature and extent thereof.

(e) Annual Information and Projections. Within 30 days after the end of each fiscal year of the Credit Parties, all such financial information regarding the Credit Parties and their Subsidiaries and specifically regarding the Properties, as the Administrative Agent shall reasonably request, including, but not limited to, partnership and joint venture agreements, property cash flow projections, property budgets, actual and budgeted capital expenditures, operating statements (current year and immediately preceding year, if the Property existed as a Property in the immediately preceding year), mortgage information, rent rolls, lease expiration reports, leasing status reports, note payable summary, bullet note summary, equity funding requirements, contingent liability summary, line of credit summary, line of credit collateral summary, wrap note or note receivable summary, schedule of outstanding letters of credit, summary of cash and cash equivalents, projection of management and leasing fees and overhead budgets.

(f) Auditor's Reports. Promptly upon receipt thereof, a copy of any "management letter" submitted by independent accountants to any Credit Party or any of its Subsidiaries in connection with any annual, interim or special audit of the books of such Credit Party or any of its Subsidiaries.

61

(g) Reports. Promptly upon transmission or receipt thereof,
(i) copies of any filings and registrations with, and reports to or from, the Securities and Exchange Commission, or any successor agency, and copies of all financial statements, proxy statements, notices and reports as any Credit Party or any of its Subsidiaries shall send to its shareholders or partners generally, (ii) copies of all income tax returns filed by a Credit Party and (iii) upon the written request of the Administrative Agent, all reports and written information to and from the United States Environmental Protection Agency, or any state or local agency responsible for environmental matters, the United States Occupational Health and Safety Administration, or any state or local agency responsible for health and safety matters, or any successor agencies or authorities concerning environmental, health or safety matters; provided, however, that if any such transmissions are done electronically, the Borrowers shall instead promptly notify the Administrative Agent of same and provide information on how to retrieve such information.

(h) Notices. Upon a Credit Party obtaining knowledge thereof, such Credit Party will give written notice to the Administrative Agent immediately of (i) the occurrence of an event or condition consisting of a Default or Event of Default, specifying the nature and existence thereof and what action the Credit Parties propose to take with respect thereto, and (ii) the occurrence of any of the following with respect to any Credit Party or any of its Subsidiaries (A) the pendency or commencement of any litigation, arbitral or governmental proceeding against any Credit Party or any of its Subsidiaries which if adversely determined would have or would be reasonably expected to have a Material Adverse Effect, (B) the institution of any proceedings against any Credit Party or any of its Subsidiaries with respect to, or the receipt of notice by such Person of potential liability or responsibility for violation, or alleged violation of any federal, state or local law, rule or regulation, including but not limited to, Environmental Laws, the violation of which would have or would be reasonably expected to have a Material Adverse Effect, (C) the occurrence of any default or nonpayment of nonrecourse Indebtedness of a Credit Party in an aggregate principal amount in excess of $10,000,000 or (D) any information that a Credit Party may have a Year 2000 Problem on or after January 1, 2000.

(i) ERISA. Upon a Credit Party or any ERISA Affiliate obtaining knowledge thereof, the Credit Parties will give written notice to the Administrative Agent promptly (and in any event within five Business Days) of: (i) any event or condition, including, but not limited to, any Reportable Event, that constitutes, or might reasonably lead to, a ERISA Event; (ii) with respect to any Multiemployer Plan, the receipt of notice as prescribed in ERISA or otherwise of any withdrawal liability assessed against a Credit Party or any ERISA Affiliate, or of a determination that any Multiemployer Plan is in reorganization or insolvent (both within the meaning of Title IV of ERISA); (iii) the failure to make full payment on or before the due date (including extensions) thereof of all amounts which a Credit Party or any ERISA Affiliate is required to contribute to each Plan pursuant to its terms and as required to meet the minimum funding standard set forth in ERISA and the Code with respect thereto; or (iv) any change in the funding status of any Plan that could have a Material Adverse Effect; together, with a description of any such event or condition or a copy of any such notice and a statement by the chief financial officer of a Credit Party briefly setting forth the details regarding such event, condition, or notice, and the action, if any, which has been or is being taken or is proposed to be taken by a Credit Party or any

62

ERISA Affiliate with respect thereto. Promptly upon request, the Credit Parties shall furnish the Administrative Agent and the Lenders with such additional information concerning any Plan as may be reasonably requested, including, but not limited to, copies of each annual report/return (Form 5500 series), as well as all schedules and attachments thereto required to filed with the Department of Labor and/or the Internal Revenue Service pursuant to ERISA and the Code, respectively, for each "plan year" (within the meaning of Section 3(39) of ERISA).

(j) Environmental.

(i) Subsequent to a notice from any Governmental Authority that would reasonably cause concern or during the existence of an Event of Default, and upon the written request of the Administrative Agent, the Credit Parties will furnish or cause to be furnished to the Administrative Agent, at the Credit Parties' expense, an updated report of an environmental assessment of reasonable scope, form and depth, including, where appropriate, invasive soil or groundwater sampling, by a consultant reasonably acceptable to the Administrative Agent as to the nature and extent of the presence of any Hazardous Materials on any Property and as to the compliance by the Credit Parties and with Environmental Laws. If the Credit Parties fail to deliver such an environmental report within seventy-five (75) days after receipt of such written request then the Administrative Agent may arrange for same, and the Credit Parties hereby grant to the Administrative Agent and its representatives access to the Properties and a license of a scope reasonably necessary to undertake such an assessment (including, where appropriate, invasive soil or groundwater sampling). The reasonable cost of any assessment arranged for by the Administrative Agent pursuant to this provision will be payable by the Credit Parties on demand and, during any Collateral Period, added to the obligations secured by the Collateral Documents.

(ii) Each of the Credit Parties and their Subsidiaries will conduct and complete all investigations, studies, sampling, and testing and all remedial, removal, and other actions necessary to address all Hazardous Materials on, from, or affecting any Property to the extent necessary to be in compliance with all Environmental Laws and all other applicable federal, state, and local laws, regulations, rules and policies and with the orders and directives of all Governmental Authorities exercising jurisdiction over such Property to the extent any failure would have or would be reasonably expected to have a Material Adverse Effect.

(k) Year 2000 Information. Upon the written request of the Administrative Agent, such information, assurances and documentation (including, but not limited to, the results of internal and external audit reports prepared in connection therewith) reasonably acceptable to the Administrative Agent that the Credit Parties and their Subsidiaries will take all reasonable appropriate actions to prevent a Year 2000 Problem on or after January 1, 2000.

63

(l) Other Information. With reasonable promptness upon any such request, such other information regarding the Properties or regarding the business, assets or financial condition of the Credit Parties and their Subsidiaries as the Administrative Agent or any Lender may reasonably request.

7.2 Financial Covenants.

(a) Debt Service Coverage Ratio. The Debt Service Coverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to 1.50 to 1.0.

(b) Interest Coverage Ratio. The Interest Coverage Ratio, as of the end of each fiscal quarter of Credit Parties for the twelve month period ending on such date, shall be greater than or equal to 2.25 to 1.0.

(c) Fixed Charge Coverage Ratio. The Fixed Charge Coverage Ratio, as of the end of each fiscal quarter of the Credit Parties for the twelve month period ending on such date, shall be greater than or equal to 1.75 to 1.0.

(d) Net Worth. At all times, the Net Worth of the Credit Parties and their Subsidiaries on a consolidated basis shall be greater than or equal to the sum of (i) $700,000,000 plus (ii) 85% of the Net Cash Proceeds from all Equity Issuances (other than Equity Issuances referred to in the following subclause (iii)) plus (iii) 85% of the actual increase in Net Worth (if any) resulting from an Equity Issuance made in connection with an Incentive Stock Plan.

(e) Leverage Ratio. Prior to the earlier of (i) the Leverage Ratio, at the end of any fiscal quarter of the Credit Parties subsequent to September 30, 1998, being less than or equal to .55 to
1.0. or (ii) one year following the Closing Date, (the earlier of such dates referred to herein as the "Leverage Ratio Change Date") the Leverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to .625 to 1.0. Subsequent to the Leverage Ratio Change Date, the Leverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to .55 to 1.0.

(f) Unsecured Debt Ratio. The Unsecured Debt Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to the following ratios for the following periods:

(i) From the Closing Date to March 31, 1999, 1.6 to 1.0;
(ii) From April 1, 1999 to June 30, 1999, 1.8 to 1.0; and
(iii) From July 1, 1999 and thereafter 2.0 to 1.0.

(g) Secured Debt Ratio. The Secured Debt Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to the following ratios for the following periods:

(i) From the Closing Date to March 31, 1999, .40 to 1.0;
(ii) From April 1, 1999 to June 30, 1999, .35 to 1.0; and

64

(iii) From July 1, 1999 and thereafter .30 to 1.0.

(h) Unencumbered Cash Flow Ratio. The Unencumbered Cash Flow Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to the following ratios for the following periods:

(i) From the Closing Date to September 30, 1999, 1.5 to 1.0;
(ii) From October 1, 1999 to September 30, 2000, 1.6 to 1.0; and
(iii) From October 1, 2000 and thereafter, 1.65 to 1.0.

(i) Credit Party Assets. At all times, at least 50% of Total Assets must be owned by the Credit Parties.

7.3 Preservation of Existence.

Each of the Credit Parties will do all things necessary to preserve and keep in full force and effect its existence, rights, franchises and authority except as permitted by Section 8.4; provided that a Credit Party may dissolve if it has no assets at the time of dissolution. Without limiting the generality of the foregoing, BRT will do all things necessary to maintain its status as a REIT.

7.4 Books and Records.

Each of the Credit Parties will, and will cause its Subsidiaries to, keep complete and accurate books and records of its transactions in accordance with good accounting practices on the basis of GAAP (including the establishment and maintenance of appropriate reserves).

7.5 Compliance with Law.

Each of the Credit Parties will, and will cause its Subsidiaries to, comply in all material respects with all material laws, rules, regulations and orders, and all applicable material restrictions imposed by all Governmental Authorities, applicable to it and its property (including, without limitation, Environmental Laws and ERISA).

7.6 Payment of Taxes and Other Indebtedness.

Each of the Credit Parties will, and will cause its Subsidiaries to, pay, settle or discharge (a) all taxes, assessments and governmental charges or levies imposed upon it, or upon its income or profits, or upon any of its properties, before they shall become delinquent, (b) all lawful claims (including claims for labor, materials and supplies) which, if unpaid, might give rise to a Lien upon any of its properties, and (c) except as prohibited hereunder, all of its other Indebtedness as it shall become due; provided, however, that a Credit Party or any of its Subsidiaries shall not be required to pay any such tax, assessment, charge, levy, claim or Indebtedness which is being contested in good faith by appropriate proceedings and as to which adequate reserves therefor have been established in accordance with GAAP, unless the failure to make any such payment (i) would give

65

rise to an immediate right to foreclose on a Lien securing such amounts or
(ii) would have a Material Adverse Effect.

7.7 Insurance.

Each of the Credit Parties will, and will cause its Subsidiaries to, at all times maintain in full force and effect insurance (including worker's compensation insurance, liability insurance, casualty insurance and business interruption insurance) in such amounts, covering such risks and liabilities and with such deductibles or self-insurance retentions as are in accordance with normal industry practice.

7.8 Maintenance of Assets.

Each of the Credit Parties will, and will cause its Subsidiaries to, maintain and preserve its Properties and all other assets in good repair, working order and condition, normal wear and tear excepted, and will make, or cause to be made, in the Properties and other assets, from time to time, all repairs, renewals, replacements, extensions, additions, betterments and improvements thereto as may be needed or proper, to the extent and in the manner customary for companies in similar businesses.

7.9 Performance of Obligations.

Each of the Credit Parties will, and will cause its Subsidiaries to, perform in all material respects all of its obligations under the terms of all material agreements, indentures, mortgages, security agreements or other debt instruments to which it is a party or by which it is bound.

7.10 Use of Proceeds.

The Credit Parties will use the proceeds of the Loans solely (a) to refinance the Indebtedness under the Existing Credit Agreement, (b) to repay the Existing Bridge Facility, (c) to acquire Properties, (d) to renovate existing Properties, (e) to develop and construct Properties subject to the limitations set forth in this Credit Agreement and (f) for general working capital in the ordinary course (including the payment of dividends if such payment is otherwise in compliance with the terms of this Credit Agreement); provided that it is understood that proceeds of Loans may not be used to acquire undeveloped land, if after giving effect to such acquisition, the Credit Parties' aggregate ownership of undeveloped land exceeds 5% of Total Assets, unless such land is adjacent or contiguous with other assets being acquired or already owned or such land is part of a construction project approved by the Required Lenders and has all necessary local permits and approvals and construction will commence within six months of acquisition. The Credit Parties will use the Letters of Credit solely for the purposes set forth in Section 2.2(a).

7.11 Audits/Inspections.

Upon reasonable notice and during normal business hours, each Credit Party will, and will cause its Subsidiaries to, permit representatives appointed by the Administrative Agent, including, without limitation, independent accountants, agents, attorneys and appraisers to visit and inspect such Credit Party's or other Combined Party's property, including, without limitation, the Properties

66

and the Collateral, including its books and records, its accounts receivable and inventory, its facilities and its other business assets, and to make photocopies or photographs thereof and to write down and record any information such representative obtains and shall permit the Administrative Agent or its representatives to investigate and verify the accuracy of information provided to the Lenders, and to discuss all such matters with the officers, employees and representatives of the Credit Parties, their Subsidiaries and any other Combined Party.

7.12 Additional Credit Parties.

At any time a Person that is not a Credit Party becomes a Material Subsidiary of a Credit Party (other than, subject to Section 7.2(i), Excluded Material Subsidiaries or any entity which is subject to provisions in its charter documents that prohibit it from guaranteeing or becoming jointly and severally liable for the Indebtedness of others), the Borrowers shall notify the Administrative Agent and promptly thereafter (but in any event within 30 days after such Person becomes a Material Subsidiary of a Credit Party): (a) execute a Joinder Agreement in substantially the form of Exhibit 7.12, (b) execute an appropriate pledge agreement in substantially the form of the Pledge Agreements (or a joinder to an existing Pledge Agreement) and otherwise in a form reasonably acceptable to the Administrative Agent, which pledge agreement will be effective only during an appropriate Collateral Period and which will obligate the Borrowers to, within 10 days after the occurrence of a Stock Collateral Effective Date (or within 30 days of the notice referred to above if such Collateral Period shall have begun and shall then be continuing), cause all of the capital stock (or other equity interest) of such Person to be delivered to the Administrative Agent (together with undated stock powers, if applicable, signed in blank) and pledged to the Administrative Agent, (c) unless a Collateral Termination Date has occurred with respect to the Mortgages, execute such Mortgages as are necessary with respect to any Property owned by such Person and if the Real Estate Collateral Effective Date has occurred (and an appropriate Collateral Termination Date has not occurred), such surveys, flood certificates and other documents, agreements and instruments as requested by the Administrative Agent; provided that such Mortgage and related documents shall not be required with respect to any Property that is subject to a Permitted Lien as set forth in clause (j) of the definition of Permitted Liens, and (d) deliver such other documentation as the Administrative Agent may reasonably request in connection with the foregoing, including, without limitation, information regarding the real property owned by such Person, including title and environmental reports, certified resolutions and other organizational and authorizing documents of such Person and favorable opinions of counsel to such Person (which shall cover, among other things, the legality, validity, binding effect and enforceability of the documentation referred to above), and, if a Collateral Period shall exist, appropriate UCC-1 financing statements all in form, content and scope reasonably satisfactory to the Administrative Agent.

7.13 Interest Rate Protection Agreements.

If for any consecutive period of 30 days or more Eurodollar Loans constitute less than 75% of the aggregate principal amount of all outstanding Revolving Loans, then the Borrowers shall enter into interest rate protection agreements in form and substance acceptable to the Administrative Agent.

67

7.14 Collateral Effective Date.

(a) Real Estate Collateral Effective Date. Upon the occurrence of the Real Estate Collateral Effective Date, the Mortgages shall be released from escrow and filed in the appropriate jurisdictions and there shall be added to Section 6 a new representation and warranty in the form set forth on Schedule 7.14. Within 90 days following the Real Estate Collateral Effective Date, the Borrowers shall deliver to the Administrative Agent, in form and substance reasonably satisfactory to the Administrative Agent:

(i) such UCC-1 fixture filings as are necessary with respect to each Property.

(ii) an opinion of counsel in the state in which each Property is located with respect to the enforceability of the Mortgages, standard remedies with respect thereto and sufficiency of the form of UCC-1 financing statements to be recorded or filed in such state and such other matters as the Administrative Agent may request, in form and substance reasonably satisfactory to the Administrative Agent.

(iii) ALTA or other appropriate form mortgagee title insurance policies (the "Mortgage Policies") issued by a title insurance company acceptable to the Administrative Agent (the "Title Insurance Company"), in an amount reasonably satisfactory to the Administrative Agent with respect to each parcel of Property, assuring the Administrative Agent that the applicable Mortgages create valid and enforceable mortgage liens on the respective Properties, free and clear of all defects and encumbrances except Permitted Liens, which Mortgage Policies shall be in form and substance reasonably satisfactory to the Administrative Agent and containing such endorsements as shall be reasonably satisfactory to the Administrative Agent and for any other matters that the Administrative Agent may request, and providing affirmative insurance and such reinsurance as the Administrative Agent may request, all of the foregoing in form and substance reasonably satisfactory to the Administrative Agent.

(iv) Surveys. Maps or plats of an as-built survey of the sites of the Properties certified to the Administrative Agent and the Title Insurance Company in a manner reasonably satisfactory to them, dated a date satisfactory to the Administrative Agent and the Title Insurance Company by an independent professional licensed land surveyor reasonably satisfactory to the Administrative Agent and the Title Insurance Company, which maps or plats and the surveys on which they are based shall be sufficient to delete any standard printed survey exception contained in the applicable title policy and be made in accordance with the Minimum Standard Detail Requirements for Land Title Surveys jointly established and adopted

68

by the American Land Title Association and the American Congress on Surveying and Mapping in 1992, and, without limiting the generality of the foregoing, there shall be surveyed and shown on such maps, plats or surveys the following: (A) the locations on such sites of all the buildings, structures and other improvements and the established building setback lines; (B) the lines of streets abutting the sites and width thereof;
(C) all access and other easements appurtenant to the sites necessary to use the sites; (D) all roadways, paths, driveways, easements, encroachments and overhanging projections and similar encumbrances affecting the site, whether recorded, apparent from a physical inspection of the sites or otherwise known to the surveyor; (E) any encroachments on any adjoining property by the building structures and improvements on the sites; and (F) if the site is described as being on a filed map, a legend relating the survey to said map.

(v) Flood Certificates. Certification from a registered engineer or land surveyor or other evidence reasonably acceptable to the Administrative Agent that none of the improvements on the Properties are located within any area designated by the Director of the Federal Emergency Management Agency as a "special flood hazard" area or if any improvements on the Properties are located within a "special flood hazard" area, evidence of a flood insurance policy from a company and in an amount reasonably satisfactory to the Administrative Agent for the applicable portion of the premises, naming the Administrative Agent, for the benefit of the Lenders, as mortgagee.

(vi) Environmental Reports. Environmental assessment reports and related documents with respect to all Properties reasonably acceptable to the Administrative Agent.

(vii) Valuations. A real estate valuation for each of the Properties reasonably acceptable to the Administrative Agent.

(b) Stock Collateral Effective Date. Upon the occurrence of a Stock Collateral Effective Date and during the ensuing Collateral Period, the Pledge Agreements shall be in full force and effect and the Administrative Agent, on behalf of the Lenders, shall have a Lien on the Collateral described in the Pledge Agreements and there shall be added to Section 6 a new representation and warranty in the form set forth on Schedule 7.14(b). Within ten Business Days following the Stock Collateral Effective Date, the Borrowers shall deliver to the Administrative Agent, in form and substance reasonably satisfactory to the Administrative Agent:

(i) all stock certificates evidencing the stock pledged to the Administrative Agent pursuant to the Pledge Agreements, together with duly executed in blank undated stock powers attached thereto.

69

(ii) duly executed UCC financing statements for each appropriate jurisdiction as is necessary, in the Administrative Agent's sole discretion, to perfect the Lenders' security interest in the Stock Collateral.

(iii) an opinion of counsel addressed to the Administrative Agent, on behalf of the Lenders, covering such issues as reasonably requested by the Administrative Agent, including the attachment and perfection of the Liens in favor of the Lenders.

7.15 Construction.

With respect to any construction and development engaged in by the Combined Parties, the Credit Parties shall or shall cause another Person to:
(a) comply with all applicable regulations and codes and (b) complete all such construction and development in accordance with approved plans and specifications.

7.16 Acquisitions.

If at the time a Credit Party or one of its Subsidiaries anticipates making an Investment or an acquisition in excess of $20 million there are any Revolving Loans outstanding or LOC Obligations outstanding, then ten Business Days prior to such Credit Party (or Subsidiary) making such Investment or acquisition, the Borrowers shall provide the Administrative Agent written notice of such Investment or acquisition, together with a certification as to compliance with the terms of the Credit Agreement, including, without limitation, Section 7.2, after giving effect to such Investment or acquisition. If there are no Revolving Loans or LOC Obligations are outstanding, the Borrowers shall give the Administrative Agent written notice of such Investment or acquisition by a Credit Party within five Business Days after the occurrence of such Investment or acquisition.

7.17 Mortgage Documents.

On or before December 31, 1998, the Credit Parties shall provide to the Administrative Agent fully executed and notarized mortgages, deeds of trust or deeds to secure debt (each a "Mortgage" and collectively the "Mortgages") encumbering the fee interest of the Credit Parties in the Unsecured Properties in substantially the form of Exhibit 7.17, with such changes as are necessary to comply with various state laws. The Mortgages shall be placed in escrow and shall not be effective until the Real Estate Collateral Effective Date. If the Real Estate Collateral Effective Date does not occur on or before May 15, 1999 in accordance with the terms hereof, the Mortgages shall be released to the Borrowers.

70

SECTION 8

NEGATIVE COVENANTS

Each Credit Party hereby covenants and agrees that so long as this Credit Agreement is in effect and until the Loans and LOC Obligations, together with interest, fees and other obligations hereunder, have been paid in full and the Commitments and Letters of Credit hereunder shall have terminated:

8.1 Indebtedness.

No Credit Party will, nor will it permit any Combined Party to, contract, create, incur, assume or permit to exist any Indebtedness, except:

(a) Indebtedness arising under this Credit Agreement and the other Credit Documents;

(b) Indebtedness owing from one Credit Party to another Credit Party;

(c) Indebtedness in respect of current accounts payable and accrued expenses incurred in the ordinary course of business; and

(d) Other Indebtedness as long as, prior to and after giving effect thereto, the Credit Parties are otherwise in compliance with the terms of this Credit Agreement.

8.2 Liens.

No Credit Party will, nor will it permit any of its Subsidiaries to, contract, create, incur, assume or permit to exist any Lien with respect to
(a) any Unsecured Properties, unless after giving affect to the creation of such Lien (i) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (ii) no Default or Event of Default or (b) any of its other Properties or any other assets of any kind (whether real or personal, tangible or intangible), whether now owned or after acquired, except for Permitted Liens.

8.3 Nature of Business.

No Credit Party will, nor will it permit any of its Subsidiaries to, alter the character of its business from that conducted as of the Closing Date or engage in any business other than the business conducted as of the Closing Date.

8.4 Consolidation and Merger.

No Credit Party will enter into any transaction of merger or consolidation or liquidate, wind up or dissolve itself (or suffer any liquidation or dissolution); provided that notwithstanding the foregoing provisions of this Section 8.4, (a) any Credit Party may be merged or consolidated with or into another Credit Party; provided that (i) if the transaction is between a Borrower and another Credit Party such Borrower is the continuing or surviving entity; (ii) the Administrative Agent is

71

given prior written notice of such action, and the Credit Parties execute and deliver such documents, instruments and certificates as the Administrative Agent may reasonably request; (iii) after giving effect thereto no Default or Event of Default exists; and (iv) during any Collateral Period, the Lenders continue to have a first priority perfected Lien on the appropriate Collateral and (b) upon prior written notification to the Administrative Agent, as long as no Default or Event of Default exists, a Credit Party that has no assets and no revenues may be dissolved.

8.5 Sale or Lease of Assets.

(a) No Property may be conveyed, sold, leased, transferred or otherwise disposed of except (i) the Properties as indicated on Schedule 8.5 as long as such conveyance, sale, lease, transfer or other disposal occurs on or before March 31, 1999 or (ii) such other Properties if, after giving effect thereto, (A) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (B) no Default or Event of Default exists.

(b) No equity interest in any Credit Party may be conveyed, sold, transferred or otherwise disposed of except (i) the transfers of equity interests as indicated on Schedule 8.5 as long as such conveyance, sale, transfer or disposal occurs on or before March 31, 1999 or (ii) such other equity interests if, after giving effect thereto (i) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in
Section 7.2 and (ii) no Default or Event of Default exists; provided that any sale of an equity interest in a Borrower is subject to Section 9.1(i). Upon the sale of an equity interest in a Guarantor in conformance with the terms hereof, if after the sale of such equity interest such Guarantor is no longer a Material Subsidiary the Lenders agree to release such Guarantor from its obligations hereunder.

8.6 Advances, Investments and Loans.

Neither the Credit Parties nor any of their Subsidiaries will (a) make any Investments except for Permitted Investments or (b) so long as Brandywine Realty Services Partnership ("BRSP") is named in Section 2.5, make any Investments in BRSP (whether or not such Investment would otherwise be a Permitted Investment) or otherwise cause or permit BRSP to be a Subsidiary of any Credit Party.

8.7 Restricted Payments.

(a) No Credit Party will, directly or indirectly, declare or pay any dividends or make any other distribution upon any of its shares of beneficial interests or any shares of its capital stock of any class or with respect to any of its partnership interests that exceeds, in the aggregate, 90% of Funds From Operations earned subsequent to the Effective Date; provided that (i) any Subsidiary of a Credit Party may pay dividends or make distributions to its parent and (ii) BRT may pay such dividends as is necessary to maintain its status as a REIT.

(b) Except as permitted by Section 8.6 and except for the conversion of partnership units of BOP into cash or into shares of beneficial interest of BRT, no Credit Party will, nor will it permit any of its Subsidiaries to, at any time, for cash, purchase, redeem or otherwise acquire or retire or make any provisions for redemption, acquisition or retirement of any shares of its capital stock of any class or any warrants or options to purchase any such shares or with respect to any of its partnership interests.

72

8.8 Transactions with Affiliates.

No Credit Party will, nor will it permit any of its Subsidiaries to, enter into any transaction or series of transactions, whether or not in the ordinary course of business, with any officer, director, shareholder, Subsidiary or Affiliate other than on terms and conditions substantially as favorable as would be obtainable in a comparable arm's-length transaction with a Person other than an officer, director, shareholder, Subsidiary or Affiliate.

8.9 Fiscal Year; Organizational Documents.

No Credit Party will (a) change its fiscal year or (b) change its articles or certificate of incorporation, its bylaws, its declaration of trust, its limited liability company agreement, its articles or certificate of partnership or partnership agreement or any other organization or formation documents in any manner that would have an adverse effect of the rights of the Lenders under the Credit Documents; provided that (i) BRT may take such action, with prior written notice to the Administrative Agent, as is necessary to maintain its status as a REIT and (ii) the Credit Parties will provide prompt written notice of any change to be made in compliance with the terms of this Section 8.9.

8.10 Limitations.

No Credit Party will, nor will it permit any of its Subsidiaries to, directly or indirectly, create or otherwise cause, incur, assume, suffer or permit to exist or become effective any consensual encumbrance or restriction of any kind on the ability of any such Person to pay any Indebtedness owed to the Credit Parties.

8.11 Other Negative Pledges.

The Credit Parties will not enter into, assume or become subject to any agreement prohibiting or otherwise restricting the creation or assumption of any Lien upon its properties or assets, whether now owned or hereafter acquired, or requiring the grant of any security for such obligation if security is given for some other obligation except as provided under the Credit Documents.

8.12 Construction and Development.

The Credit Parties shall not engage in construction and development projects in which the total project costs of all such concurrent construction and development projects exceed, in the aggregate at any one time, 15% of Total Assets (it being understood and agreed for purposes of this Section 8.12 that a project shall be considered under construction and/or development until a certificate of occupancy therefore (or other similar certificate) shall have been issued by the applicable Governmental Authority).

73

SECTION 9

EVENTS OF DEFAULT

9.1 Events of Default.

An Event of Default shall exist upon the occurrence of any of the following specified events (each an "Event of Default"):

(a) Payment. The Credit Parties shall default in the payment
(i) when due of any principal amount of any Loans or any reimbursement obligation arising from drawings under Letters of Credit or (ii) within three days of when due of any interest on the Loans or any fees or other amounts owing hereunder, under any of the other Credit Documents or in connection herewith.

(b) Representations. Any representation, warranty or statement made or deemed to be made by any Credit Party herein, in any of the other Credit Documents, or in any statement or certificate delivered or required to be delivered pursuant hereto or thereto shall prove untrue in any material respect on the date as of which it was made or deemed to have been made.

(c) Covenants. Any Credit Party shall:

(i) default in the due performance or observance of any term, covenant or agreement contained in Sections 7.2, 7.3, 7.10, 7.11, 7.12, 7.14, 7.17 or 8.1 through 8.12 inclusive; provided that if the Credit Parties fail to comply with Section 7.2(e) solely as a result of a change in the Capitalization Rate by the Lenders, a Default or an Event of Default shall not exist unless the Credit Parties also fail to comply with Section 7.2(e) as of the last day of any subsequent fiscal quarter of the Credit Parties; or

(ii) default in the due performance or observance by it of any term, covenant or agreement contained in Section 7.1 and such default shall continue unremedied for a period of five Business Days after the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent; or

(iii) default in the due performance or observance by it of any term, covenant or agreement (other than those referred to in subsections (a), (b) or (c)(i) or
(ii) of this Section 9.1) contained in this Credit Agreement and such default shall continue unremedied for a period of at least 30 days after the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent.

(d) Other Credit Documents. (i) Any Credit Party shall default in the due performance or observance of any term, covenant or agreement in any of the other Credit Documents and such default shall continue unremedied for a period of at least 30 days after

74

the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent, or (ii) any Credit Document (or any provision of any Credit Document, including Section 4 of the Credit Agreement) shall fail to be in full force and effect or any Credit Party shall so assert or any Credit Document shall fail to give the Administrative Agent and/or the Lenders the security interests, liens, rights, powers and privileges purported to be created thereby.

(e) Bankruptcy, etc. The occurrence of any of the following with respect to any Credit Party or any of its Subsidiaries (i) a court or governmental agency having jurisdiction in the premises shall enter a decree or order for relief in respect of any Credit Party or any of its Subsidiaries in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or appoint a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of any Credit Party or any of its Subsidiaries or for any substantial part of its property or ordering the winding up or liquidation of its affairs; or
(ii) an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect is commenced against any Credit Party or any of its Subsidiaries and such petition remains unstayed and in effect for a period of 60 consecutive days; or (iii) any Credit Party or any of its Subsidiaries shall commence a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or consent to the entry of an order for relief in an involuntary case under any such law, or consent to the appointment or taking possession by a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of such Person or any substantial part of its property or make any general assignment for the benefit of creditors; or (iv) any Credit Party or any of its Subsidiaries shall admit in writing its inability to pay its debts generally as they become due or any action shall be taken by such Person in furtherance of any of the aforesaid purposes.

(f) Defaults under Other Agreements. With respect to any recourse Indebtedness (other than Indebtedness outstanding under this Credit Agreement) of any Credit Party or any of its Subsidiaries in an aggregate principal amount in excess of $10,000,000, (i) a Credit Party or one of its Subsidiaries shall (A) default in any payment
(beyond the applicable grace period with respect thereto, if any) with respect to any such recourse Indebtedness, or (B) default (after giving effect to any applicable grace period) in the observance or performance of any term, covenant or agreement relating to such recourse Indebtedness or contained in any instrument or agreement evidencing, securing or relating thereto, or any other event or condition shall occur or condition exist, the effect of which default or other event or condition is to cause, or permit, the holder or holders of such recourse Indebtedness (or trustee or agent on behalf of such holders) to cause (determined without regard to whether any notice or lapse of time is required) any such recourse Indebtedness to become due prior to its stated maturity; or (ii) any such recourse Indebtedness shall be declared due and payable, or required to be prepaid other than by a regularly scheduled required prepayment prior to the stated maturity thereof; or (iii) any such Indebtedness shall mature and remain unpaid. With respect to any nonrecourse Indebtedness of any Credit Party or any of its Subsidiaries in an aggregate principal amount in excess of $20,000,000, a default in payment (whether by acceleration or otherwise) shall occur and such payment default is not cured or waived within sixty days after the occurrence thereof.

75

(g) Judgments. One or more judgments, orders, or decrees shall be entered against any one or more of the Credit Party involving a liability of $10,000,000 or more, in the aggregate (to the extent not paid or covered by insurance provided by a carrier who has acknowledged coverage), and such judgments, orders or decrees (i) are the subject of any enforcement proceeding commenced by any creditor or (ii) shall continue unsatisfied, undischarged and unstayed for a period ending on the first to occur of (A) the last day on which such judgment, order or decree becomes final and unappealable or (B) 20 days.

(h) ERISA Events. The occurrence of any of the following events or conditions, unless such event or occurrence would not have or be reasonably expected to have a Material Adverse Effect: (1) any "accumulated funding deficiency," as such term is defined in Section 302 of ERISA and Section 412 of the Code, whether or not waived, shall exist with respect to any Plan, or any lien shall arise on the assets of a Credit Party or any ERISA Affiliate in favor of the PBGC or a Plan; (2) an ERISA Event shall occur with respect to a Single Employer Plan, which is, in the reasonable opinion of the Administrative Agent, likely to result in the termination of such Plan for purposes of Title IV of ERISA; (3) an ERISA Event shall occur with respect to a Multiemployer Plan or Multiple Employer Plan, which is, in the reasonable opinion of the Administrative Agent, likely to result in (i) the termination of such Plan for purposes of Title IV of ERISA, or (ii) a Credit Party or any ERISA Affiliate incurring any liability in connection with a withdrawal from, reorganization of (within the meaning of Section 4241 of ERISA), or insolvency (within the meaning of Section 4245 of ERISA) of such Plan; or (4) any prohibited transaction (within the meaning of
Section 406 of ERISA or Section 4975 of the Code) or breach of fiduciary responsibility shall occur which may subject a Credit Party or any ERISA Affiliate to any liability under Sections 406, 409,
502(i), or 502(l) of ERISA or Section 4975 of the Code, or under any agreement or other instrument pursuant to which a Credit Party or any ERISA Affiliate has agreed or is required to indemnify any person against any such liability.

(i) Ownership. There shall occur a Change of Control.

(j) Management. Gerard Sweeney is no longer active in the management of the Credit Parties and their Subsidiaries; provided that upon the death or disability of Gerard Sweeney, the Credit Parties and their Subsidiaries shall have six months to provide the Administrative Agent with substitute personnel as replacement; such substitute personnel to be acceptable to the Administrative Agent in its sole reasonable discretion.

(k) REIT Status. BRT does not maintain its REIT status or is no longer deemed to be a REIT.

(l) Bridge Facility. An Event of Default (as defined in the Bridge Facility) occurs.

9.2 Acceleration; Remedies.

Upon the occurrence of an Event of Default, and at any time thereafter unless and until such Event of Default has been waived in writing by the Required Lenders (or the Lenders as may be required hereunder), the Administrative Agent shall, upon the request and direction of Lenders

76

whose aggregate Credit Exposure constitutes at least 66 2/3% of the Credit Exposure of all Lenders, by written notice to the Borrowers, take any of the following actions without prejudice to the rights of the Administrative Agent or any Lender to enforce its claims against the Borrowers, except as otherwise specifically provided for herein:

(a) Termination of Commitments. Declare the Commitments terminated whereupon the Commitments shall be immediately terminated.

(b) Acceleration of Loans. Declare the unpaid principal of and any accrued interest in respect of all Loans, any reimbursement obligations arising from drawings under Letters of Credit and any and all other indebtedness or obligations of any and every kind owing by a Credit Party to any of the Lenders hereunder to be due whereupon the same shall be immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby waived by the Credit Parties.

(c) Cash Collateral. Direct the Credit Parties to pay (and the Credit Parties agree that upon receipt of such notice, or upon the occurrence of an Event of Default under Section 9.1(e), they will immediately pay) to the Administrative Agent additional cash, to be held by the Administrative Agent, for the benefit of the Lenders, in a cash collateral account as additional security for the LOC Obligations in respect of subsequent drawings under all then outstanding Letters of Credit in an amount equal to the maximum aggregate amount which may be drawn under all Letters of Credits then outstanding.

(d) Enforcement of Rights. Enforce any and all rights and interests created and existing under the Credit Documents, including, without limitation, all rights and remedies existing under the Collateral Documents or against a Guarantor and all rights of set-off.

Notwithstanding the foregoing, if an Event of Default specified in Section 9.1(e) shall occur, then the Commitments shall automatically terminate and all Loans, all accrued interest in respect thereof, all accrued and unpaid fees, all reimbursement obligations under Letters of Credit and all other indebtedness or obligations owing to the Lenders hereunder shall immediately become due and payable without the giving of any notice or other action by the Administrative Agent or the Lenders, which notice or other action is expressly waived by the Credit Parties.

Notwithstanding the fact that enforcement powers reside primarily with the Administrative Agent, each Lender has, to the extent permitted by law, a separate right of payment and shall be considered a separate "creditor" holding a separate "claim" within the meaning of Section 101(5) of the Bankruptcy Code or any other insolvency statute.

9.3 Allocation of Payments After Event of Default.

Notwithstanding any other provisions of this Credit Agreement, after the occurrence and during the continuance of an Event of Default, all amounts collected or received by the Administrative Agent, or any Lender on account of amounts outstanding under any of the Credit Documents, or in respect of the Collateral, shall be paid over or delivered as follows:

77

FIRST, to the payment of all reasonable out-of-pocket costs and expenses (including without limitation reasonable attorneys' fees) of the Administrative Agent in connection with enforcing the rights of the Lenders under the Credit Documents and any protective advances made by the Administrative Agent with respect to the Collateral pursuant to the terms of the Collateral Documents;

SECOND, to payment of any fees owed to the Administrative Agent;

THIRD, to the payment of all reasonable out-of-pocket costs and expenses, (including, without limitation, reasonable attorneys' fees) of each of the Lenders in connection with enforcing its rights under the Credit Documents;

FOURTH, to the payment of all accrued fees and interest payable to the Lenders hereunder;

FIFTH, to the payment of the outstanding principal amount of the Loans, and unreimbursed drawings under Letters of Credit, to the payment or cash collateralization of the outstanding LOC Obligations pro rata, as set forth below;

SIXTH, to all other obligations which shall have become due and payable under the Credit Documents and not repaid pursuant to clauses "FIRST" through "FIFTH" above; and

SEVENTH, to the payment of the surplus, if any, to whoever may be lawfully entitled to receive such surplus.

In carrying out the foregoing, (a) amounts received shall be applied in the numerical order provided until exhausted prior to application to the next succeeding category; (b) each of the Lenders shall receive an amount equal to its pro rata share (based on the proportion that the then outstanding Loans and LOC Obligations held by such Lender bears to the aggregate then outstanding Loans and LOC Obligations) of amounts available to be applied pursuant to clauses "THIRD", "FOURTH," "FIFTH," and "SIXTH" above and (c) to the extent that any amounts available for distribution pursuant to clause "FIFTH" above are attributable to the issued by undrawn amount of outstanding Letters of Credit, such amounts shall be held by the Administrative Agent in a cash collateral account and applied (x) first, to reimburse the Issuing Lender from time to time for any drawings under such Letters of Credit and (y) then, following the expiration of all Letters of Credit, to all other obligations of the types described in clauses "FIFTH" and "SIXTH" above in the manner provided in this Section 9.3.

SECTION 10

AGENCY PROVISIONS

10.1 Appointment.

Each Lender hereby designates and appoints NationsBank, N.A. as Administrative Agent of such Lender to act as specified herein and the other Credit Documents, and each such Lender

78

hereby authorizes the Administrative Agent, as the agent for such Lender, to take such action on its behalf under the provisions of this Credit Agreement and the other Credit Documents and to exercise such powers and perform such duties as are expressly delegated by the terms hereof and of the other Credit Documents, together with such other powers as are reasonably incidental thereto. Notwithstanding any provision to the contrary elsewhere herein and in the other Credit Documents, the Administrative Agent shall not have any duties or responsibilities, except those expressly set forth herein and therein, or any fiduciary relationship with any Lender, and no implied covenants, functions, responsibilities, duties, obligations or liabilities shall be read into this Credit Agreement or any of the other Credit Documents, or shall otherwise exist against the Administrative Agent. The provisions of this
Section are solely for the benefit of the Administrative Agent and the Lenders and none of the Credit Parties shall have any rights as a third party beneficiary of the provisions hereof. In performing its functions and duties under this Credit Agreement and the other Credit Documents, the Administrative Agent shall act solely as an agent of the Lenders and does not assume and shall not be deemed to have assumed any obligation or relationship of agency or trust with or for any Credit Parties.

10.2 Delegation of Duties.

The Administrative Agent may execute any of its duties hereunder or under the other Credit Documents by or through agents or attorneys-in-fact and shall be entitled to advice of counsel concerning all matters pertaining to such duties. The Administrative Agent shall not be responsible for the negligence or misconduct of any agents or attorneys-in-fact selected by it with reasonable care.

10.3 Exculpatory Provisions.

Neither the Administrative Agent nor any of its officers, directors, employees, agents, attorneys-in-fact or affiliates shall be (a) liable for any action lawfully taken or omitted to be taken by it or such Person under or in connection herewith or in connection with any of the other Credit Documents
(except for its or such Person's own gross negligence or willful misconduct)
or (b) responsible in any manner to any of the Lenders for any recitals, statements, representations or warranties made by any of the Credit Parties contained herein or in any of the other Credit Documents or in any certificate, report, document, financial statement or other written or oral statement referred to or provided for in, or received by the Administrative Agent under or in connection herewith or in connection with the other Credit Documents, or enforceability or sufficiency therefor of any of the other Credit Documents, or for any failure of the Credit Parties to perform their obligations hereunder or thereunder. The Administrative Agent shall not be responsible to any Lender for the effectiveness, genuineness, validity, enforceability, collectibility or sufficiency of this Credit Agreement, or any of the other Credit Documents or for any representations, warranties, recitals or statements made herein or therein or made by the Credit Parties in any written or oral statement or in any financial or other statements, instruments, reports, certificates or any other documents in connection herewith or therewith furnished or made by the Administrative Agent to the Lenders or by or on behalf of the Credit Parties to the Administrative Agent or any Lender or be required to ascertain or inquire as to the performance or observance of any of the terms, conditions, provisions, covenants or agreements contained herein or therein or as to the use of the proceeds of the Loans or the use of the Letters of Credit or of the existence or possible existence of any Default or Event of Default or to inspect the properties, books or records

79

of the Credit Parties. The Administrative Agent is not a trustee for the Lenders and owes no fiduciary duty to the Lenders.

10.4 Reliance on Communications.

The Administrative Agent shall be entitled to rely, and shall be fully protected in relying, upon any note, writing, resolution, notice, consent, certificate, affidavit, letter, cablegram, telegram, telecopy, telex or teletype message, statement, order or other document or conversation believed by it to be genuine and correct and to have been signed, sent or made by the proper Person or Persons and upon advice and statements of legal counsel (including, without limitation, counsel to any of the Credit Parties, independent accountants and other experts selected by the Administrative Agent with reasonable care). The Administrative Agent may deem and treat each Lender as the owner of its interests hereunder for all purposes unless a written notice of assignment, negotiation or transfer thereof shall have been filed with the Administrative Agent in accordance with Section 11.3(b). The Administrative Agent shall be fully justified in failing or refusing to take any action under this Credit Agreement or under any of the other Credit Documents unless it shall first receive such advice or concurrence of the Required Lenders as it deems appropriate or it shall first be indemnified to its satisfaction by the Lenders against any and all liability and expense which may be incurred by it by reason of taking or continuing to take any such action. The Administrative Agent shall in all cases be fully protected in acting, or in refraining from acting, hereunder or under any of the other Credit Documents in accordance with a request of the Required Lenders (or to the extent specifically provided in Section 11.6, all the Lenders) and such request and any action taken or failure to act pursuant thereto shall be binding upon all the Lenders (including their successors and assigns).

10.5 Notice of Default.

The Administrative Agent shall not be deemed to have knowledge or notice of the occurrence of any Default or Event of Default hereunder unless the Administrative Agent has received notice from a Lender or a Credit Party referring to the Credit Document, describing such Default or Event of Default and stating that such notice is a "notice of default." In the event that the Administrative Agent receives such a notice, the Administrative Agent shall give prompt notice thereof to the Lenders. The Administrative Agent shall take such action with respect to such Default or Event of Default as shall be reasonably directed by the Required Lenders.

10.6 Non-Reliance on Administrative Agent and Other Lenders.

Each Lender expressly acknowledges that neither the Administrative Agent, NMS nor any of their officers, directors, employees, agents, attorneys-in-fact or affiliates has made any representations or warranties to it and that no act by the Administrative Agent, NMS or any affiliate thereof hereinafter taken, including any review of the affairs of any Credit Party, shall be deemed to constitute any representation or warranty by the Administrative Agent or NMS to any Lender. Each Lender represents to the Administrative Agent and NMS that it has, independently and without reliance upon the Administrative Agent or NMS or any other Lender, and based on such documents and information as it has deemed appropriate, made its own appraisal of and investigation into the business, assets, operations, property, financial and other conditions, prospects and creditworthiness of the Credit Parties and made its own decision to make its Loans hereunder and enter into this

80

Credit Agreement. Each Lender also represents that it will, independently and without reliance upon the Administrative Agent, NMS or any other Lender, and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit analysis, appraisals and decisions in taking or not taking action under this Credit Agreement, and to make such investigation as it deems necessary to inform itself as to the business, assets, operations, property, financial and other conditions, prospects and creditworthiness of the Credit Parties. Except for notices, reports and other documents expressly required to be furnished to the Lenders by the Administrative Agent hereunder, the Administrative Agent and NMS shall not have any duty or responsibility to provide any Lender with any credit or other information concerning the business, operations, assets, property, financial or other conditions, prospects or creditworthiness of the Credit Parties which may come into the possession of the Administrative Agent, NMS or any of their officers, directors, employees, agents, attorneys-in-fact or affiliates.

10.7 Indemnification.

The Lenders agree to indemnify the Administrative Agent in its capacity as such (to the extent not reimbursed by the Credit Parties and without limiting the obligation of the Credit Parties to do so), ratably according to their respective Commitments (or if the Commitments have expired or been terminated, in accordance with the respective principal amounts of outstanding Loans and Participation Interest of the Lenders), from and against any and all liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements of any kind whatsoever which may at any time (including without limitation at any time following payment in full of the Obligations) be imposed on, incurred by or asserted against the Administrative Agent in its capacity as such in any way relating to or arising out of this Credit Agreement or the other Credit Documents or any documents contemplated by or referred to herein or therein or the transactions contemplated hereby or thereby or any action taken or omitted by the Administrative Agent under or in connection with any of the foregoing; provided that no Lender shall be liable for the payment of any portion of such liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements resulting from the gross negligence or willful misconduct of the Administrative Agent. If any indemnity furnished to the Administrative Agent for any purpose shall, in the opinion of the Administrative Agent, be insufficient or become impaired, the Administrative Agent may call for additional indemnity and cease, or not commence, to do the acts indemnified against until such additional indemnity is furnished. The agreements in this Section shall survive the payment of the Obligations and all other amounts payable hereunder and under the other Credit Documents.

10.8 Administrative Agent in Its Individual Capacity.

The Administrative Agent and its affiliates may make loans to, accept deposits from and generally engage in any kind of business with the Credit Parties as though the Administrative Agent were not the Administrative Agent hereunder. With respect to the Loans made and Letters of Credit issued and all obligations owing to it, the Administrative Agent shall have the same rights and powers under this Credit Agreement as any Lender and may exercise the same as though it were not the Administrative Agent, and the terms "Lender" and "Lenders" shall include the Administrative Agent in its individual capacity.

81

10.9 Successor Agent.

The Administrative Agent may, at any time, resign upon 20 days written notice to the Lenders. Upon any such resignation, the Required Lenders shall have the right to appoint a successor Administrative Agent. If no successor Administrative Agent shall have been so appointed by the Required Lenders, and shall have accepted such appointment, within 45 days after the notice of resignation, then the retiring Administrative Agent shall select a successor Administrative Agent provided such successor is a Lender hereunder or an Eligible Assignee. Upon the acceptance of any appointment as the Administrative Agent hereunder by a successor, such successor Administrative Agent shall thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Administrative Agent, and the retiring Administrative Agent shall be discharged from its duties and obligations as the Administrative Agent, as appropriate, under this Credit Agreement and the other Credit Documents and the provisions of this Section 10.9 shall inure to its benefit as to any actions taken or omitted to be taken by it while it was the Administrative Agent under this Credit Agreement.

SECTION 11

MISCELLANEOUS

11.1 Notices.

Except as otherwise expressly provided herein, all notices and other communications shall have been duly given and shall be effective (a) when delivered, (b) when transmitted via telecopy (or other facsimile device) to the number set out below, (c) the Business Day following the day on which the same has been delivered prepaid to a reputable national overnight air courier service, or (d) the third Business Day following the day on which the same is sent by certified or registered mail, postage prepaid, in each case to the respective parties at the address or telecopy numbers set forth on Schedule 11.1, or at such other address as such party may specify by written notice to the other parties hereto.

11.2 Right of Set-Off.

In addition to any rights now or hereafter granted under applicable law or otherwise, and not by way of limitation of any such rights, upon the occurrence of an Event of Default and the commencement of remedies described in Section 9.2, each Lender is authorized at any time and from time to time, without presentment, demand, protest or other notice of any kind (all of which rights being hereby expressly waived), to set-off and to appropriate and apply any and all deposits (general or special) and any other indebtedness at any time held or owing by such Lender (including, without limitation, branches, agencies or Affiliates of such Lender wherever located) to or for the credit or the account of any Credit Party against obligations and liabilities of such Credit Party to the Lenders hereunder, under the Notes, the other Credit Documents or otherwise, irrespective of whether the Administrative Agent or the Lenders shall have made any demand hereunder and although such obligations, liabilities or claims, or any of them, may be contingent or unmatured, and any such set-off shall be deemed to have been made immediately upon the occurrence of an Event of Default even though such charge is made or entered on the books of such

82

Lender subsequent thereto. The Credit Parties hereby agree that any Person purchasing a participation in the Loans and Commitments hereunder pursuant to
Section 11.3(c) or 3.8 may exercise all rights of set-off with respect to its participation interest as fully as if such Person were a Lender hereunder.

11.3 Benefit of Agreement.

(a) Generally. This Credit Agreement shall be binding upon and inure to the benefit of and be enforceable by the respective successors and assigns of the parties hereto; provided that none of the Credit Parties may assign and transfer any of its interests (except as permitted by Sections 8.4 or 8.5) without the prior written consent of the Lenders; and provided further that the rights of each Lender to transfer, assign or grant participations in its rights and/or obligations hereunder shall be limited as set forth below in subsections (b) and (c) of this Section 11.3. Notwithstanding the above (including anything set forth in subsections (b) and (c) of this Section 11.3), nothing herein shall restrict, prevent or prohibit any Lender from (A) pledging its Loans hereunder to a Federal Reserve Bank in support of borrowings made by such Lender from such Federal Reserve Bank, or (B) granting assignments or participations in such Lender's Loans and/or Commitments hereunder to its parent company and/or to any Affiliate of such Lender or to any existing Lender or Affiliate thereof.

(b) Assignments. In addition to the assignments permitted by
Section 11.3(a), each Lender may, with the prior written consent of the Borrowers and the Administrative Agent (provided that no consent of the Borrowers shall be required during the existence and continuation of an Event of Default), which consent shall not be unreasonably withheld or delayed, assign all or a portion of its rights and obligations hereunder pursuant to an assignment agreement substantially in the form of Exhibit 11.3 to one or more Eligible Assignees; provided that (i) any such assignment shall be in a minimum aggregate amount of $10,000,000 of the Commitments and in integral multiples of $1,000,000 above such amount (or the remaining amount of Commitments held by such Lender) and (ii) each such assignment shall be of a constant, not varying, percentage of all of the assigning Lender's rights and obligations under the Commitment being assigned. Any assignment hereunder shall be effective upon satisfaction of the conditions set forth above and delivery to the Administrative Agent of a duly executed assignment agreement together with a transfer fee of $3,500 payable to the Administrative Agent for its own account. Upon the effectiveness of any such assignment, the assignee shall become a "Lender" for all purposes of this Credit Agreement and the other Credit Documents and, to the extent of such assignment, the assigning Lender shall be relieved of its obligations hereunder to the extent of the Loans and Commitment components being assigned. The Borrowers agree that upon notice of any such assignment and surrender of the appropriate Note or Notes, it will promptly provide to the assigning Lender and to the assignee separate promissory notes in the amount of their respective interests substantially in the form of the original Note or Notes (but with notation thereon that it is given in substitution for and replacement of the original Note or Notes or any replacement notes thereof).

By executing and delivering an assignment agreement in accordance with this Section 11.3(b), the assigning Lender thereunder and the assignee thereunder shall be deemed to

83

confirm to and agree with each other and the other parties hereto as follows: (i) such assigning Lender warrants that it is the legal and beneficial owner of the interest being assigned thereby free and clear of any adverse claim and the assignee warrants that it is an Eligible Assignee; (ii) except as set forth in clause (i) above, such assigning Lender makes no representation or warranty and assumes no responsibility with respect to any statements, warranties or representations made in or in connection with this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto, or the execution, legality, validity, enforceability, genuineness, sufficiency or value of this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto or the financial condition of any Credit Party or the performance or observance by any Credit Party of any of its obligations under this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto; (iii) such assignee represents and warrants that it is legally authorized to enter into such assignment agreement; (iv) such assignee confirms that it has received a copy of this Credit Agreement, the other Credit Documents and such other documents and information as it has deemed appropriate to make its own credit analysis and decision to enter into such assignment agreement; (v) such assignee will independently and without reliance upon the Administrative Agent, such assigning Lender or any other Lender, and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not taking action under this Credit Agreement and the other Credit Documents;
(vi) such assignee appoints and authorizes the Administrative Agent to take such action on its behalf and to exercise such powers under this Credit Agreement or any other Credit Document as are delegated to the Administrative Agent by the terms hereof or thereof, together with such powers as are reasonably incidental thereto; and (vii) such assignee agrees that it will perform in accordance with their terms all the obligations which by the terms of this Credit Agreement and the other Credit Documents are required to be performed by it as a Lender.

(c) Participations. Each Lender may sell, transfer, grant or assign participations in all or any part of such Lender's interests and obligations hereunder; provided that (i) such selling Lender shall remain a "Lender" for all purposes under this Credit Agreement (such selling Lender's obligations under the Credit Documents remaining unchanged) and the participant shall not constitute a Lender hereunder, (ii) no such participant shall have, or be granted, rights to approve any amendment or waiver relating to this Credit Agreement or the other Credit Documents except to the extent any such amendment or waiver would (A) reduce the principal of or rate of interest on or fees in respect of any Loans in which the participant is participating or increase any Commitments with respect thereto, or (B) postpone the date fixed for any payment of principal (including the extension of the final maturity of any Loan or the date of any mandatory prepayment), interest or fees in which the participant is participating, (iii) sub-participations by the participant (except to an Affiliate, parent company or Affiliate of a parent company of the participant) shall be prohibited and (iv) any such participations shall be in a minimum aggregate amount of $10,000,000 of the Commitments and in integral multiples of $1,000,000 in excess thereof. In the case of any such participation, the participant shall not have any rights under this Credit Agreement or the other Credit Documents (the participant's rights against the selling Lender in respect of such participation to be those set forth in the participation agreement with such Lender creating such participation) and all amounts payable by the Credit Parties hereunder shall be

84

determined as if such Lender had not sold such participation; provided, however, that such participant shall be entitled to receive additional amounts under Sections 3.9, 3.12, 3.13 and 3.14 to the same extent that the Lender from which such participant acquired its participation would be entitled to the benefit of such cost protection provisions.

11.4 No Waiver; Remedies Cumulative.

No failure or delay on the part of the Administrative Agent or any Lender in exercising any right, power or privilege hereunder or under any other Credit Document and no course of dealing between the Credit Parties and the Administrative Agent or any Lender shall operate as a waiver thereof; nor shall any single or partial exercise of any right, power or privilege hereunder or under any other Credit Document preclude any other or further exercise thereof or the exercise of any other right, power or privilege hereunder or thereunder. The rights and remedies provided herein are cumulative and not exclusive of any rights or remedies which the Administrative Agent or any Lender would otherwise have. No notice to or demand on any Credit Party in any case shall entitle any Credit Party to any other or further notice or demand in similar or other circumstances or constitute a waiver of the rights of the Administrative Agent or the Lenders to any other or further action in any circumstances without notice or demand.

11.5 Payment of Expenses; Indemnification.

The Credit Parties agree to: (a) pay all reasonable out-of-pocket costs and expenses of (i) the Administrative Agent and NMS in connection with (A) the negotiation, preparation, execution and delivery, syndication and administration of this Credit Agreement and the other Credit Documents and the documents and instruments referred to therein (including, without limitation, the reasonable fees and expenses of Moore & Van Allen, special counsel to the Administrative Agent, and (B) any amendment, waiver or consent relating hereto and thereto including, but not limited to, any such amendments, waivers or consents resulting from or related to any work-out, renegotiation or restructure relating to the performance by the Credit Parties under this Credit Agreement, and (ii) the Administrative Agent and the Lenders in connection with (A) enforcement of the Credit Documents and the documents and instruments referred to therein, including, without limitation, in connection with any such enforcement, the reasonable fees and disbursements of counsel for the Administrative Agent and each of the Lenders, and (B) any bankruptcy or insolvency proceeding of a Credit Party of any of its Subsidiaries, and (b) indemnify the Administrative Agent, NMS and each Lender, its officers, directors, employees, representatives and agents from and hold each of them harmless against any and all losses, liabilities, claims, damages or expenses incurred by any of them as a result of, or arising out of, or in any way related to, or by reason of, any investigation, litigation or other proceeding (whether or not the Administrative Agent, NMS or any Lender is a party thereto) related to (i) the entering into and/or performance of any Credit Document or the use of proceeds of any Loans (including other extensions of credit) hereunder or the consummation of any other transactions contemplated in any Credit Document, including, without limitation, the reasonable fees and disbursements of counsel incurred in connection with any such investigation, litigation or other proceeding (but excluding any such losses, liabilities, claims, damages or expenses to the extent incurred by reason of gross negligence or willful misconduct on the part of the Person to be indemnified),
(ii) any Environmental Claim and (iii) any claims for Non-Excluded Taxes.

85

11.6 Amendments, Waivers and Consents.

Neither this Credit Agreement nor any other Credit Document nor any of the terms hereof or thereof may be amended, changed, waived, discharged or terminated unless such amendment, change, waiver, discharge or termination is in writing and signed by the Required Lenders and the Credit Parties; provided that no such amendment, change, waiver, discharge or termination shall without the consent of each Lender affected thereby:

(a) extend the final maturity of any Loan or any portion thereof or postpone any other date fixed for any payment of principal (other than in accordance with Section 3.5(b));

(b) reduce the rate or extend the time of payment of interest (other than as a result of waiving the applicability of any post-default increase in interest rates) thereon or fees hereunder;

(c) reduce or waive the principal amount of any Loan;

(d) increase the Commitment of a Lender over the amount thereof in effect (it being understood and agreed that a waiver of any Default or Event of Default or a waiver of any mandatory reduction in the Commitments shall not constitute a change in the terms of any Commitment of any Lender);

(e) release a Borrower from its obligations, or all or substantially all of the Guarantors from their obligations, under the Credit Documents; provided that the Administrative Agent may release a Guarantor if an equity interest in a Guarantor is transferred in accordance with Section 8.5 or equity is issued in accordance with
Section 11.20;

(f) except upon a Collateral Termination Date, release all or substantially all of the Collateral securing the Obligations;

(g) amend, modify or waive any provision of this Section or
Section 3.4(a), 3.4(b), 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 5.2, 9.1(a), 11.2, 11.3 or 11.5;

(h) reduce any percentage specified in, or otherwise modify, the definition of Required Lenders; or

(i) consent to the assignment or transfer by a Borrower of any of its rights and obligations under (or in respect of) the Credit Documents.

If any amendment, waiver or consent with respect to the Credit Documents has been delivered in writing to a Lender by the Administrative Agent, and such amendment waiver or consent requires only the approval of the Required Lenders to become effective, then such Lender shall have ten Business Days from the date of receipt of such amendment, waiver or consent to respond thereto. Failure of a Lender to timely respond to such amendment, waiver or consent shall be deemed an approval by such Lender to such amendment, waiver or consent.

86

No provision of Section 2.2 may be amended or modified without the consent of the Issuing Lender. No provision of Section 10 may be amended or modified without the consent of the Administrative Agent.

Notwithstanding the fact that the consent of all the Lenders is required in certain circumstances as set forth above, (x) each Lender is entitled to vote as such Lender sees fit on any reorganization plan that affects the Loans or the Letters of Credit, and each Lender acknowledges that the provisions of
Section 1126(c) of the Bankruptcy Code supersedes the unanimous consent provisions set forth herein and (y) the Required Lenders may consent to allow a Credit Party to use cash collateral in the context of a bankruptcy or insolvency proceeding.

11.7 Counterparts/Telecopy.

This Credit Agreement may be executed in any number of counterparts, each of which when so executed and delivered shall be an original, but all of which shall constitute one and the same instrument. Delivery of executed counterparts by telecopy shall be as effective as an original and shall constitute a representation that an original will be delivered.

11.8 Headings.

The headings of the sections and subsections hereof are provided for convenience only and shall not in any way affect the meaning or construction of any provision of this Credit Agreement.

11.9 Defaulting Lender.

Each Lender understands and agrees that if such Lender is a Defaulting Lender then notwithstanding the provisions of Section 11.6 it shall not be entitled to vote on any matter requiring the consent of the Required Lenders or to object to any matter requiring the consent of all the Lenders; provided, however, that all other benefits and obligations under the Credit Documents shall apply to such Defaulting Lender.

11.10 Survival of Indemnification and Representations and Warranties.

All indemnities set forth herein and all representations and warranties made herein shall survive the execution and delivery of this Credit Agreement, the making of the Loans, the issuance of the Letters of Credit and the repayment of the Loans and other obligations and the termination of the Commitments hereunder.

11.11 Governing Law; Jurisdiction.

(a) THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NORTH CAROLINA. Any legal action or proceeding with respect to this Agreement or any other Credit Document may be brought in the courts of the State of North Carolina in Mecklenburg County, or of the United States for the Western

87

District of North Carolina and, by execution and delivery of this Credit Agreement, each Credit Party hereby irrevocably accepts for itself and in respect of its property, generally and unconditionally, the jurisdiction of such courts. Each Credit Party further irrevocably consents to the service of process out of any of the aforementioned courts in any such action or proceeding by the mailing of copies thereof by registered or certified mail, postage prepaid, to it at the address for notices pursuant to Section 11.1, such service to become effective 15 days after such mailing. Nothing herein shall affect the right of a Lender to serve process in any other manner permitted by law or to commence legal proceedings or to otherwise proceed against a Credit Party in any other jurisdiction. Each Credit Party agrees that a final judgment in any action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law; provided that nothing in this Section 11.11(a) is intended to impair a Credit Party's right under applicable law to appeal or seek a stay of any judgment.

(b) Each Credit Party hereby irrevocably waives any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions or proceedings arising out of or in connection with this Credit Agreement or any other Credit Document brought in the courts referred to in subsection (a) hereof and hereby further irrevocably waives and agrees not to plead or claim in any such court that any such action or proceeding brought in any such court has been brought in an inconvenient forum.

11.12 Waiver of Jury Trial.

EACH OF THE PARTIES TO THIS AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS CREDIT AGREEMENT, ANY OF THE OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY.

11.13 Time.

All references to time herein shall be references to Eastern Standard Time or Eastern Daylight Time, as the case may be, unless specified otherwise.

11.14 Severability.

If any provision of any of the Credit Documents is determined to be illegal, invalid or unenforceable, such provision shall be fully severable and the remaining provisions shall remain in full force and effect and shall be construed without giving effect to the illegal, invalid or unenforceable provisions.

11.15 Entirety.

This Credit Agreement together with the other Credit Documents represent the entire agreement of the parties hereto and thereto, and supersede all prior agreements and understandings,

88

oral or written, if any, including any commitment letters or correspondence relating to the Credit Documents or the transactions contemplated herein and therein.

11.16 Binding Effect.

(a) This Credit Agreement shall become effective at such time when all of the conditions set forth in Section 5.1 have been satisfied or waived by the Lenders and it shall have been executed by the Credit Parties and the Administrative Agent, and the Administrative Agent shall have received copies hereof (telefaxed or otherwise) which, when taken together, bear the signatures of each Lender, and thereafter this Credit Agreement shall be binding upon and inure to the benefit of the Credit Parties, the Administrative Agent and each Lender and their respective successors and assigns. Upon this Credit Agreement becoming effective, the Existing Credit Agreement and the Existing Bridge Facility shall be deemed terminated and the Credit Parties and the lenders party to the Existing Credit Agreement or the Existing Bridge Facility shall no longer have any obligations thereunder (other than those obligations in the Existing Credit Agreement and the Existing Bridge Facility that expressly survive the termination of the Existing Credit Agreement).

(b) This Credit Agreement shall be a continuing agreement and shall remain in full force and effect until all Loans, LOC Obligations, interest, fees and other Obligations have been paid in full and all Commitments and Letters of Credit have been terminated. Upon termination, the Credit Parties shall have no further obligations (other than the indemnification provisions that survive) under the Credit Documents; provided that should any payment, in whole or in part, of the Obligations be rescinded or otherwise required to be restored or returned by the Administrative Agent or any Lender, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, then the Credit Documents shall automatically be reinstated and all amounts required to be restored or returned and all costs and expenses incurred by the Administrative Agent or Lender in connection therewith shall be deemed included as part of the Obligations.

11.17 Confidentiality.

Each Lender agrees that it will use its reasonable best efforts to keep confidential and to cause any representative designated under Section 7.11 to keep confidential any non-public information from time to time supplied to it under any Credit Document; provided, however, that nothing herein shall prevent the disclosure of any such information to (a) the extent a Lender in good faith believes such disclosure is required by Requirement of Law, (b) counsel for a Lender or to its accountants, (c) bank examiners or auditors or comparable Persons, (d) any affiliate of a Lender, (e) any other Lender, or any assignee, transferee or participant, or any potential assignee, transferee or participant, of all or any portion of any Lender's rights under this Agreement who is notified of the confidential nature of the information or (f) any other Person in connection with any litigation to which any one or more of the Lenders is a party; and provided further that no Lender shall have any obligation under this Section 11.17 to the extent any such information becomes available on a non-confidential basis from a source other than a Credit Party or that any information becomes publicly available other than by a breach of this Section 11.17.

89

11.18 Collateral Termination Date.

(a) Mortgages. Upon an applicable Collateral Termination Date with respect to the Mortgages:

(i) The Liens evidenced by the Mortgages shall be released and all covenants and other agreements contained in the Mortgages shall no longer be effective and shall otherwise cease and be of no further force and effect;

(ii) The Administrative Agent shall, at the expense of the Borrowers, execute and deliver such releases of Mortgages and Uniform Commercial Code termination statements to evidence the releases described in clause (i) above;

(iii) The representation and warranty set forth on Schedule 7.14 shall no longer be deemed to be included in the Credit Agreement (except as required by Section 7.14(b)).

(b) Stock Collateral. Upon an applicable Collateral Termination Date with respect to the Stock Collateral and until the occurrence of a subsequent Stock Collateral Effective Date:

(i) The pledges and grants of security interests pursuant to the Pledge Agreements, and the covenants and other agreements contained therein, shall no longer be effective and shall otherwise cease and be of no further force and effect;

(ii) The Administrative Agent shall, at the expense of the Borrowers, (A) return all items described in Section 7.14(b) to the applicable Credit Party and (B) execute and deliver such Uniform Commercial Code termination statements to evidence the termination described in clause (i) above; and

(iii) The representation and warranty set forth on Schedule 7.14 shall no longer be deemed to be included in this Credit Agreement (except as required by Section 7.14(a)).

Notwithstanding any provisions of this Section 11.18(b) to the contrary, if, after a Collateral Termination Date, a Stock Collateral Effective Date shall occur again, then the provisions of Section 7.14(b) again shall apply and the Credit Parties shall take such actions, as requested by the Administrative Agent, to ensure the Lenders have a first priority perfected security interest in the Stock Collateral.

11.19 Further Assurances.

The Credit Parties agree, upon the request of the Administrative Agent, to promptly take such actions as are necessary to carry out the intent of this Credit Agreement and the other Credit Documents, including, but not limited to, such actions as are necessary to ensure that, during any Collateral Period, the Lenders have a perfected security interest in the Collateral subject to no Liens other than Permitted Liens.

90

11.20 Release of Guarantors.

If a Guarantor issues equity and as a result thereof such Guarantor is no longer a Material Subsidiary, then as long as after giving effect to the issuance of such equity the Credit Parties will be in compliance with Section 7.2(i), the Lenders agree to release such Guarantor from its obligations hereunder.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

91

Each of the parties hereto has caused a counterpart of this Second Amended and Restated Credit Agreement to be duly executed and delivered as of the date first above written.

BORROWERS:                     BRANDYWINE REALTY TRUST,
---------                      a Maryland real estate investment trust

                               By: /s/ Gerard H. Sweeney
                                   ---------------------------------------------
                                   Name: Gerard H. Sweeney
                                   Title: President and Chief Executive Officer


                               BRANDYWINE OPERATING PARTNERSHIP,
                               L.P., a Delaware limited partnership

                                       By: Brandywine Realty Trust, a Maryland
                                           real estate investment trust, its
                                           general partner


                                           By: /s/ Gerard H. Sweeney
                                               ---------------------------------
                                               Name:  Gerard H. Sweeney
                                               Title: President and Chief
                                                      Executive Officer


GUARANTORS:            LC/N HORSHAM LIMITED PARTNERSHIP, a
----------             Pennsylvania limited partnership

                       By: Witmer Operating Partnership I, L.P., a Delaware
                           limited partnership, its general partner

                           By: Brandywine Witmer, L.L.C., a Pennsylvania
                               limited liability company, its general partner

                               By: Brandywine Operating Partnership, L.P., a
                                   Delaware limited partnership, its sole
                                   member

                                   By: Brandywine Realty Trust, a
                                       Maryland real estate investment
                                       trust, its general partner


                       LC/N KEITH VALLEY LIMITED PARTNERSHIP I, a
                       Pennsylvania limited partnership

                       By: Witmer Operating Partnership I, L.P., a Delaware
                           limited partnership, its general partner

                           By: Brandywine Witmer, L.L.C., a Pennsylvania limited
                               liability company, its general partner

                               By: Brandywine Operating Partnership, L.P., a
                                   Delaware limited partnership, its sole
                                   member

                                   By: Brandywine Realty Trust, a
                                       Maryland real estate investment
                                       trust, its general partner


NICHOLS LANSDALE LIMITED PARTNERSHIP III,
a Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner

NEWTECH III LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner


WITMER OPERATING PARTNERSHIP I, L.P., a
Delaware limited partnership

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real
estate investment trust, its general
partner

NEWTECH IV LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner


C/N OAKLANDS LIMITED PARTNERSHIP I, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner

FIFTEEN HORSHAM, L.P., a Pennsylvania limited
partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner


C/N LEEDOM LIMITED PARTNERSHIP II, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

C/N IRON RUN LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

C/N OAKLANDS LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

IRON RUN LIMITED PARTNERSHIP V, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner


BRANDYWINE TB I, L.P., a Pennsylvania limited partnership

By: Brandywine TB I, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.P., a Pennsylvania limited partnership

By: Brandywine TB II, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.P., a Pennsylvania limited partnership

By: Brandywine TB III, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TB VI, L.P., a Pennsylvania limited partnership

By: Brandywine TB VI, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE DOMINION, L.P., a Pennsylvania limited partnership

By: Brandywine Dominion, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.P., a Pennsylvania limited partnership

By: Brandywine P.M., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE I.S., L.P., a Pennsylvania limited partnership

By: Brandywine I.S., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE CENTRAL, L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.P., a Pennsylvania limited partnership, its general partner

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


APPOP 2, L.P., a Delaware limited partnership

By: AAP Sub Three, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: AAPOP Umbrella, L.P., a Delaware limited partnership, one of its general partners

By: AAP Sub Two, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: Atlantic American Properties Trust, a Maryland real estate investment trust, one of its general partners

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE F.C., L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE REALTY PARTNERS, a
Pennsylvania general partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, one of its
partners

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner

BRANDYWINE ACQUISITIONS, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


BRANDYWINE MAIN STREET, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, one of its members

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

By: Brandywine Acquisitions, LLC, a Delaware limited
liability company, one of its members

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real
estate investment trust, its general
partner

1100 BRANDYWINE, LLC, a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE LEASING, LLC, a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


BRANDYWINE TB I, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB VI, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE WITMER, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE DOMINION, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE I.S., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE F.C., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TRENTON URBAN RENEWAL, L.L.C., a Delaware
limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE DABNEY, L.L.C., a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE AXINN I, LLC, a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE AXINN II, LLC, a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


APP SUB THREE, INC., a Delaware corporation

By: /s/ Gerard H. Sweeney
    ---------------------------------------------
    Gerard H. Sweeney
    President and Chief Executive Officer of
    each of the above-named entities


LENDERS:

NATIONSBANK, N.A., acting in its capacity
as Administrative Agent and individually as a Lender

By: /s/ Nationsbank, N.A.
    ------------------------------------------
Name:
    ------------------------------------------
Title:
    ------------------------------------------


EXHIBIT 10.2

PLEDGE AGREEMENT

THIS PLEDGE AGREEMENT (this "Pledge Agreement") is entered into as of September 28, 1998 among BRANDYWINE REALTY TRUST ("BRT"), a Maryland real estate investment trust, and BRANDYWINE OPERATING PARTNERSHIP, L.P., ("BOP"), a Delaware limited partnership (collectively, the "Borrowers"), certain Subsidiaries of the Borrowers as set forth on the signature pages hereto and as may from time to time become a party hereto (individually a "Guarantor," and collectively the "Guarantors"; together with the Borrower, individually a "Pledgor," and collectively the "Pledgors") and NATIONSBANK, N.A., in its capacity as administrative agent (in such capacity, the "Administrative Agent") for the lenders from time to time party to the Credit Agreement described below (the "Lenders").

RECITALS

WHEREAS, pursuant to that certain Second Amended and Restated Credit Agreement dated as of the date hereof (as amended, modified, extended, renewed or replaced from time to time, the "Credit Agreement") among the Borrower, the Guarantors, the Lenders and the Administrative Agent, the Lenders have agreed to make Loans and issue Letters of Credit upon the terms and subject to the conditions set forth therein; and

WHEREAS, it is a condition precedent to the effectiveness of the Credit Agreement and the obligations of the Lenders to make their respective Loans and to issue Letters of Credit under the Credit Agreement that the Pledgors shall have executed and delivered this Pledge Agreement to the Administrative Agent for the ratable benefit of the Lenders.

NOW, THEREFORE, in consideration of these premises and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto agree as follows:

1. Definitions. Unless otherwise defined herein, capitalized terms used herein shall have the meanings ascribed to such terms in the Credit Agreement.

2. Pledge and Grant of Security Interest. Subject to Section 27 hereof, to secure the prompt payment and performance in full when due, whether by lapse of time or otherwise, of the Pledgor Obligations (as defined in
Section 3 hereof), each Pledgor hereby pledges and assigns to the Administrative Agent, for the benefit of the Lenders, and grants to the Administrative Agent, for the benefit of the Lenders, a continuing security interest in any and all right, title and interest of such Pledgor in and to the following, whether now owned or existing or owned, acquired, or arising hereafter (collectively, the "Collateral"):

(a) Pledged Shares. 100% of the issued and outstanding shares of capital stock owned by such Pledgor of each Material Subsidiary which is a corporation as more fully


described on Schedule 2(a) attached hereto (collectively, together with any shares of capital stock described in Sections 2(d) and 2(e) below, the "Pledged Shares").

(b) Pledged Membership Interests. 100% of the membership interests owned by such Pledgor of each Material Subsidiary which is a limited liability company as more fully described on Schedule 2(a) attached hereto (collectively, together with any membership interests described in Sections 2(d) and 2(e) below, the "Pledged Membership Interests").

(c) Pledged Partnership Interests. 100% of the partnership interests or units owned by such Pledgor of each Material Subsidiary which is a partnership as more fully described on Schedule 2(a) attached hereto (collectively, together with any partnership interests or units described in Section 2(e) below, the "Pledged Partnership Interests").

(d) Included Equity Interests. The Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests shall include, but not be limited to:

(i) any shares, membership interests, partnership interests or units, securities or equity interests of any kind representing a dividend, distribution or return on equity upon or in respect of the Pledged Shares, Pledged Membership Interests or Pledged Partnership Interests, respectively, or resulting from a split, revision, reclassification or other exchange therefor, and any subscriptions, warrants, rights or options issued to the holder of, or otherwise in respect of, the Pledged Shares, Pledged Membership Interests or Pledged Partnership Interests; and

(ii) without affecting the obligations of such Pledgor under any provision prohibiting such action hereunder, in the event of any consolidation or merger in which a Subsidiary of such Pledgor is not the surviving entity, 100% of the equity interests (whether shares of stock, membership interests, partnership interests, partnership units or otherwise) owned by such Pledgor of the successor entity formed by or resulting from such consolidation or merger.

(e) Additional Equity Interests. 100% of any equity interests (whether capital stock, membership interests, partnership interests or units or otherwise) owned by such Pledgor of any Person which hereafter becomes a Material Subsidiary (other than Excluded Material Subsidiaries), including, without limitation, any certificates representing such equity interests.

(f) Proceeds. All proceeds and products of the foregoing, however and whenever acquired and in whatever form.

Without limiting the generality of the foregoing, it is hereby specifically understood and agreed that a Pledgor may from time to time hereafter deliver additional shares of stock,

-2-

membership interests or partnership interests or units to the Administrative Agent as collateral security for the Pledgor Obligations. Upon delivery to the Administrative Agent, such additional shares of stock, membership interests or partnership interests or units shall be deemed to be part of the Collateral of such Pledgor and shall be subject to the terms of this Pledge Agreement whether or not Schedule 2(a) is amended to refer to such additional shares.

3. Security for Pledgor Obligations. The security interest created hereby in the Collateral of each Pledgor constitutes continuing collateral security for all of the following, whether now existing or hereafter incurred (the "Pledgor Obligations"):

(a) In the case of the Borrower, the prompt performance and observance by the Borrower of all obligations of the Borrower under the Credit Agreement, the Notes, this Pledge Agreement and the other Credit Documents to which the Borrower is a party;

(b) In the case of the Guarantors, subject to clause (c) of
Section 26 hereof, the prompt performance and observance by such Guarantor of all obligations of such Guarantor under the Credit Agreement, this Pledge Agreement and the other Credit Documents to which such Guarantor is a party, including, without limitation, its guaranty obligations arising under Section 4 of the Credit Agreement; and

(c) All other indebtedness, liabilities and obligations of any kind or nature, now existing or hereafter arising, owing from any Pledgor to any Lender or the Administrative Agent pursuant to or in connection with a transaction contemplated by the Credit Agreement or the other Credit Documents, howsoever evidenced, created, incurred or acquired, whether primary, secondary, direct, contingent, or joint and several, including, without limitation, all obligations and liabilities incurred in connection with collecting and enforcing the Pledgor Obligations.

4. Delivery of the Collateral. Each Pledgor hereby agrees that, upon a Collateral Effective Date and for the duration of the ensuing Collateral Period:

(a) Delivery. Each Pledgor shall deliver to the Administrative Agent
(i) promptly upon the occurrence of such Collateral Effective Date, all certificates representing the Pledged Shares, Pledged Membership Interests and/or Pledged Partnership Interests of such Pledgor and (ii) promptly upon the receipt thereof by or on behalf of a Pledgor, all other certificates and instruments constituting Collateral of a Pledgor. Prior to delivery to the Administrative Agent, all such certificates and instruments constituting Collateral of a Pledgor shall be held in trust by such Pledgor for the benefit of the Administrative Agent pursuant hereto. All such certificates shall be delivered in suitable form for transfer by delivery or shall be accompanied by duly executed instruments of transfer or assignment in blank, substantially in the form provided in Exhibit 4(a) attached hereto, or such similar form as requested by the Administrative Agent.

-3-

(b) Additional Securities. If such Pledgor shall receive by virtue of its being or having been the owner of any Collateral, any (i) certificate representing any share of stock, membership interest, partnership interest, partnership unit or other equity interest, including without limitation, any certificate representing a dividend or distribution in connection with any increase or reduction of capital, reclassification, merger, consolidation, sale of assets, combination of equity interests, splits, spin-offs or split-offs, promissory note or other instrument; (ii) option or right, whether as an addition to, substitution for, or an exchange for, any Collateral or otherwise; (iii) dividends payable in securities; or (iv) distributions of securities in connection with a partial or total liquidation, dissolution or reduction of capital, capital surplus or paid-in surplus, then such Pledgor shall receive such certificate, instrument, option, right or distribution in trust for the benefit of the Administrative Agent, shall segregate it from such Pledgor's other property and shall deliver it forthwith to the Administrative Agent in the exact form received together with any necessary endorsement and/or appropriate stock power duly executed in blank, substantially in the form provided in Exhibit 4(a), to be held by the Administrative Agent as Collateral and as further collateral security for the Pledgor Obligations.

(c) Financing Statements. Each Pledgor shall execute and deliver to the Administrative Agent such Uniform Commercial Code or other applicable financing statements as may be reasonably requested by the Administrative Agent in order to perfect and protect the security interest created hereby in the Collateral of such Pledgor.

5. Representations and Warranties. Each Pledgor hereby represents and warrants to the Administrative Agent, for the benefit of the Lenders, that so long as any of the Pledgor Obligations remain outstanding or any Credit Document is in effect or any Loan or Letter of Credit shall remain outstanding, and until all of the Commitments shall have been terminated:

(a) Authorization of Pledged Shares. The Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests are duly authorized and validly issued, are fully paid and nonassessable and are not subject to the preemptive rights of any Person. All other equity interests constituting Collateral will be duly authorized and validly issued, fully paid and nonassessable and not subject to the preemptive rights of any Person.

(b) Title. Each Pledgor has good and indefeasible title to the Collateral of such Pledgor and will at all times be the legal and beneficial owner of such Collateral free and clear of any Lien, other than Permitted Liens. There exists no "adverse claim" within the meaning of Section 8-302 of the Uniform Commercial Code as in effect in the State of North Carolina (the "UCC") with respect to the Pledged Shares, Pledged Membership Interests or Pledged Partnership Interests of such Pledgor.

(c) Exercising of Rights. The exercise by the Administrative Agent of its rights and remedies hereunder will not violate any law or governmental regulation or any material contractual restriction binding on or affecting a Pledgor or any of its property.

-4-

(d) Pledgor's Authority. No authorization, approval or action by, and no notice or filing with any Governmental Authority or with the issuer of any Pledged Shares, Pledged Membership Interests or Pledged Partnership Interests is required either (i) for the pledge made by a Pledgor or for the granting of the security interest by a Pledgor pursuant to this Pledge Agreement or (ii) for the exercise by the Administrative Agent or the Lenders of their rights and remedies hereunder (except as may be required by laws affecting the offering and sale of securities).

(e) Security Interest/Priority. This Pledge Agreement creates a valid security interest in favor of the Administrative Agent, for the benefit of the Lenders, in the Collateral. The taking possession by the Administrative Agent of the certificates representing the Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests and all other certificates and instruments constituting Collateral and the filing or registration with the appropriate governmental office with respect thereto will perfect and establish the first priority of the Administrative Agent's security interest in the Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests and, in all other Collateral represented by such Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests and instruments securing the Pledgor Obligations. Except as set forth in this Section
5(e), no action is necessary to perfect or otherwise protect such security interest.

(f) No Other Equity Interests. No Pledgor owns any shares of stock, membership interests or partnership interests or units required to be pledged hereunder other than as set forth on Schedule 2(a) attached hereto.

(g) Name; Chief Executive Office; Books and Records. Each Pledgor's legal name is as shown in this Pledge Agreement and no Pledgor has in the past four months changed its name or been a party to a merger, consolidation or other change in structure. Each Pledgor's chief executive office and chief place of business are (and for the prior four months have been) located at the locations set forth on Schedule 5(g) hereto, and each Pledgor keeps its books and records at such locations.

6. Covenants. Each Pledgor hereby covenants, that so long as any of the Pledgor Obligations remain outstanding or any Credit Document is in effect or any Loan or Letter of Credit shall remain outstanding, and until all of the Commitments shall have been terminated, such Pledgor shall:

(a) Books and Records. Mark its books and records (and shall cause the issuer of the Pledged Shares, Pledged Membership Interests and Pledged Partnership Interests of such Pledgor to mark its books and records) to reflect the security interest granted to the Administrative Agent, for the benefit of the Lenders, pursuant to this Pledge Agreement.

-5-

(b) Defense of Title. Warrant and defend title to and ownership of the Collateral of such Pledgor at its own expense against the claims and demands of all other parties claiming an interest therein, keep the Collateral free from all Liens, except for Permitted Liens, and not sell, exchange, transfer, assign, lease or otherwise dispose of Collateral of such Pledgor or any interest therein, except as permitted under the Credit Agreement and the other Credit Documents.

(c) Further Assurances. Promptly execute and deliver at its expense all further instruments and documents and take all further action that may be necessary and desirable or that the Administrative Agent may reasonably request in order to (i) perfect and protect the security interest created hereby in the Collateral of such Pledgor (including without limitation any and all action necessary to satisfy the Administrative Agent that the Administrative Agent has obtained a first priority perfected security interest in any capital stock, membership interest, partnership interest or partnership unit); (ii) enable the Administrative Agent to exercise and enforce its rights and remedies hereunder in respect of the Collateral of such Pledgor; and (iii) otherwise effect the purposes of this Pledge Agreement, including, without limitation and if requested by the Administrative Agent upon the occurrence and during the continuation of an Event of Default, delivering to the Administrative Agent irrevocable proxies in respect of the Collateral of such Pledgor.

(d) Amendments. Not make or consent to any amendment or other modification or waiver with respect to any of the Collateral of such Pledgor or enter into any agreement or allow to exist any restriction with respect to any of the Collateral of such Pledgor other than pursuant hereto or as may be permitted under the Credit Agreement.

(e) Compliance with Securities Laws. File all reports and other information now or hereafter required to be filed by such Pledgor with the United States Securities and Exchange Commission and any other state, federal or foreign agency in connection with the ownership of the Collateral of such Pledgor.

(f) Change in Location. Not, without providing 30 days prior written notice to the Administrative Agent and without filing such amendments to any previously filed financing statements as the Administrative Agent may require, (a) change the location of its chief executive office and chief place of business (as well as its books and records) from the locations set forth on Schedule 5(g) hereto or (b) change its name or be party to a merger, consolidation or other change in structure.

7. Advances by Lenders. On failure of any Pledgor to perform any of the covenants and agreements contained herein, the Administrative Agent may, at its sole option and in its sole discretion, perform the same and in so doing may expend such sums as the Administrative Agent may reasonably deem advisable in the performance thereof, including, without limitation, the payment of any insurance premiums, the payment of any taxes, a payment to obtain a release of a Lien or potential Lien, expenditures made in defending against any adverse claim and all other expenditures which the Administrative Agent or the Lenders may make for the protection of the

-6-

security hereof or which it or they may be compelled to make by operation of law. All such sums and amounts so expended shall be repayable by the Pledgors on a joint and several basis promptly upon timely notice thereof and demand therefor, shall constitute additional Pledgor Obligations and shall bear interest from the date said amounts are expended at the default rate specified in Section 3.1(b) of the Credit Agreement for Revolving Loans that are Base Rate Loans. No such performance of any covenant or agreement by the Administrative Agent or the Lenders on behalf of any Pledgor, and no such advance or expenditure therefor, shall relieve the Pledgors of any default under the terms of this Pledge Agreement or any other Credit Documents. The Lenders may make any payment hereby authorized in accordance with any bill, statement or estimate procured from the appropriate public office or holder of the claim to be discharged without inquiry into the accuracy of such bill, statement or estimate or into the validity of any tax assessment, sale, forfeiture, tax lien, title or claim except to the extent such payment is being contested in good faith by a Pledgor in appropriate proceedings and against which adequate reserves are being maintained in accordance with GAAP.

8. Events of Default. The occurrence of an event which under the Credit Agreement would constitute an Event of Default shall be an Event of Default hereunder (an "Event of Default").

9. Remedies.

(a) General Remedies. Upon the occurrence of an Event of Default and during the continuation thereof, the Administrative Agent and the Lenders shall have, in respect of the Collateral of any Pledgor, in addition to the rights and remedies provided herein, in the Credit Documents or by law, the rights and remedies of a secured party under the UCC or any other applicable law.

(b) Sale of Collateral. Upon the occurrence of an Event of Default and during the continuation thereof, without limiting the generality of this Section and upon reasonable notice, the Administrative Agent may, in its sole discretion, sell or otherwise dispose of or realize upon the Collateral, or any part thereof, in one or more parcels, at public or private sale, at any exchange or broker's board or elsewhere, at such price or prices and on such other terms as the Administrative Agent may deem commercially reasonable, for cash, credit or for future delivery or otherwise in accordance with applicable law. To the extent permitted by law, any Lender may in such event bid for the purchase of such securities. Each Pledgor agrees that, to the extent notice of sale shall be required by law (unless the Pledgor has waived notice in writing), any requirement of reasonable notice shall be met if notice, specifying the place of any public sale or the time after which any private sale is to be made, is personally served on or mailed, postage prepaid, to such Pledgor, in accordance with the notice provisions of
Section 11.1 of the Credit Agreement at least ten days before the time of such sale. The Administrative Agent shall not be obligated to make any sale of Collateral of such Pledgor regardless of notice of sale having been given. The Administrative Agent may adjourn any public or private sale from time to time by announcement at the time and place fixed therefor, and

-7-

such sale may, without further notice, be made at the time and place to which it was so adjourned.

(c) Private Sale. Upon the occurrence of an Event of Default and during the continuation thereof, the Pledgors recognize that the Administrative Agent may deem it impracticable to effect a public sale of all or any part of the Pledged Shares, Pledged Membership Interests and/or Pledged Partnership Interests or any of the securities constituting Collateral and that the Administrative Agent may, therefore, determine to make one or more private sales of any such securities to a restricted group of purchasers who will be obligated to agree, among other things, to acquire such securities for their own account, for investment and not with a view to the distribution or resale thereof. Each Pledgor acknowledges that any such private sale may be at prices and on terms less favorable to the seller than the prices and other terms which might have been obtained at a public sale and, notwithstanding the foregoing, agrees that the price received in a private sale, in and of itself, shall not constitute grounds that the sale was made in a commercially unreasonable manner. Furthermore, the Pledgor acknowledges that the Administrative Agent shall have no obligation to delay sale of any such securities for the period of time necessary to permit the issuer of such securities to register such securities for public sale under the Securities Act of 1933. Each Pledgor further acknowledges and agrees that any offer to sell such securities which has been (i) publicly advertised on a bona fide basis in a newspaper or other publication of general circulation in the financial community of New York, New York or Philadelphia, Pennsylvania (to the extent that such offer may be advertised without prior registration under the Securities Act of 1933), or (ii) made privately in the manner described above shall be deemed to involve a "public sale" under the UCC, notwithstanding that such sale may not constitute a "public offering" under the Securities Act of 1933, and the Administrative Agent may, in such event, bid for the purchase of such securities.

(d) Retention of Collateral. In addition to the rights and remedies hereunder, upon the occurrence of an Event of Default, the Administrative Agent may, after providing the notices required by
Section 9-505(2) of the UCC or otherwise complying with the requirements of applicable law of the relevant jurisdiction (unless the Pledgor objects thereto in accordance with applicable law), retain all or any portion of the Collateral in satisfaction of the Pledgor Obligations. Unless and until the Administrative Agent shall have provided such notices, however, the Administrative Agent shall not be deemed to have retained any Collateral in satisfaction of any Pledgor Obligations for any reason.

(e) Deficiency. In the event that the proceeds of any sale, collection or realization are insufficient to pay all amounts to which the Administrative Agent or the Lenders are legally entitled, the Pledgors shall be jointly and severally liable for the deficiency, together with interest thereon at the default rate specified in Section 3.1(b) of the Credit Agreement for Revolving Loans that are Base Rate Loans, together with the costs of collection and the reasonable fees of any attorneys employed by the Administrative Agent to collect such deficiency. Any surplus remaining after the full

-8-

payment and satisfaction of the Pledgor Obligations shall be returned to the Pledgors or to whomsoever a court of competent jurisdiction shall determine to be entitled thereto.

10. Rights of the Administrative Agent.

(a) Power of Attorney. In addition to other powers of attorney contained herein, each Pledgor hereby designates and appoints the Administrative Agent, on behalf of the Lenders, and each of its designees or agents as attorney-in-fact of such Pledgor, irrevocably and with power of substitution, with authority to take any or all of the following actions upon the occurrence and during the continuance of an Event of Default:

(i) to demand, collect, settle, compromise, adjust and give discharges and releases concerning the Collateral of such Pledgor, all as the Administrative Agent may reasonably determine;

(ii) to commence and prosecute any actions at any court for the purposes of collecting any of the Collateral of such Pledgor and enforcing any other right in respect thereof;

(iii) to defend, settle or compromise any action brought and, in connection therewith, give such discharge or release as the Administrative Agent may deem reasonably appropriate;

(iv) to pay or discharge taxes, liens, security interests, or other encumbrances levied or placed on or threatened against the Collateral of such Pledgor;

(v) to direct any parties liable for any payment under any of the Collateral to make payment of any and all monies due and to become due thereunder directly to the Administrative Agent or as the Administrative Agent shall direct;

(vi) to receive payment of and receipt for any and all monies, claims, and other amounts due and to become due at any time in respect of or arising out of any Collateral of such Pledgor;

(vii) to sign and endorse any drafts, assignments, proxies, stock powers, verifications, notices and other documents relating to the Collateral of such Pledgor;

(viii) to settle, compromise or adjust any suit, action or proceeding described above and, in connection therewith, to give such discharges or releases as the Administrative Agent may deem reasonably appropriate;

-9-

(ix) to execute and deliver all assignments, conveyances, statements, financing statements, renewal financing statements, pledge agreements, affidavits, notices and other agreements, instruments and documents that the Administrative Agent may determine necessary in order to perfect and maintain the security interests and liens granted in this Pledge Agreement and in order to fully consummate all of the transactions contemplated therein;

(x) to exchange any of the Collateral of such Pledgor or other property upon any merger, consolidation, reorganization, recapitalization or other readjustment of the issuer thereof and, in connection therewith, deposit any of the Collateral of such Pledgor with any committee, depository, transfer agent, registrar or other designated agency upon such terms as the Administrative Agent may determine;

(xi) to vote for a resolution, or to sign an instrument in writing, sanctioning the transfer of any or all of the Pledged Shares, Pledged Membership Interests and/or Pledged Partnership Interests of such Pledgor into the name of the Administrative Agent or one or more of the Lenders or into the name of any transferee to whom the Pledged Shares, Pledged Membership Interests and/or Pledged Partnership Interests of such Pledgor or any part thereof may be sold pursuant to Section 9 hereof; and

(xii) to do and perform all such other acts and things as the Administrative Agent may reasonably deem to be necessary, proper or convenient in connection with the Collateral of such Pledgor.

This power of attorney is a power coupled with an interest and shall be irrevocable (i) for so long as any of the Pledgor Obligations remain outstanding, any Credit Document is in effect or any Loan or Letter of Credit shall remain outstanding and (ii) until all of the Commitments shall have been terminated. The Administrative Agent shall be under no duty to exercise or withhold the exercise of any of the rights, powers, privileges and options expressly or implicitly granted to the Administrative Agent in this Pledge Agreement, and shall not be liable for any failure to do so or any delay in doing so. The Administrative Agent shall not be liable for any act or omission or for any error of judgment or any mistake of fact or law in its individual capacity or its capacity as attorney-in-fact except acts or omissions resulting from its gross negligence or willful misconduct. This power of attorney is conferred on the Administrative Agent solely to protect, preserve and realize upon its security interest in Collateral.

(b) Performance by the Administrative Agent of Pledgor's Obligations. If any Pledgor fails to perform any agreement or obligation contained herein, the Administrative Agent itself may perform, or cause performance of, such agreement or obligation, and the expenses of the Administrative Agent incurred in connection therewith shall be payable by the Pledgors on a joint and several basis pursuant to Section 26 hereof.

-10-

(c) Assignment by the Administrative Agent. The Administrative Agent may from time to time assign the Pledgor Obligations and any portion thereof and/or the Collateral and any portion thereof, and the assignee shall be entitled to all of the rights and remedies of the Administrative Agent under this Pledge Agreement in relation thereto.

(d) The Administrative Agent's Duty of Care. Other than the exercise of reasonable care to assure the safe custody of the Collateral while being held by the Administrative Agent hereunder, the Administrative Agent shall have no duty or liability to preserve rights pertaining thereto, it being understood and agreed that each of the Pledgors shall be responsible for preservation of all rights in the Collateral of such Pledgor, and the Administrative Agent shall be relieved of all responsibility for Collateral upon surrendering it or tendering the surrender of it to the Pledgors. The Administrative Agent shall be deemed to have exercised reasonable care in the custody and preservation of the Collateral in its possession if such Collateral is accorded treatment substantially equal to that which the Administrative Agent accords its own property, which shall be no less than the treatment employed by a reasonable and prudent agent in the industry, it being understood that the Administrative Agent shall not have responsibility for (i) ascertaining or taking action with respect to calls, conversions, exchanges, maturities, tenders or other matters relating to any Collateral, whether or not the Administrative Agent has or is deemed to have knowledge of such matters; or (ii) taking any necessary steps to preserve rights against any parties with respect to any Collateral.

(e) Voting Rights in Respect of the Collateral.

(i) So long as no Event of Default shall have occurred and be continuing, to the extent permitted by law, each Pledgor may exercise any and all voting and other consensual rights pertaining to the Collateral of such Pledgor or any part thereof for any purpose not inconsistent with the terms of this Pledge Agreement or the Credit Agreement; and

(ii) Upon the occurrence and during the continuance of an Event of Default, all rights of a Pledgor to exercise the voting and other consensual rights which it would otherwise be entitled to exercise pursuant to paragraph (i) of this Section shall cease and all such rights shall thereupon become vested in the Administrative Agent which shall then have the sole right to exercise such voting and other consensual rights.

(f) Dividend Rights in Respect of the Collateral.

(i) So long as no Event of Default shall have occurred and be continuing and subject to Section 4(b) hereof, each Pledgor may receive and retain any and all dividends (other than stock dividends and other dividends constituting Collateral which are addressed hereinabove) or interest paid in respect of the Collateral to the extent they are allowed under the Credit Agreement.

-11-

(ii) Upon the occurrence and during the continuance of an Event of Default:

(A) all rights of a Pledgor to receive the dividends and interest payments which it would otherwise be authorized to receive and retain pursuant to paragraph (i) of this
Section shall cease and all such rights shall thereupon be vested in the Administrative Agent which shall then have the sole right to receive and hold as Collateral such dividends and interest payments; and

(B) all dividends and interest payments which are received by a Pledgor contrary to the provisions of paragraph (A) of this subsection shall be received in trust for the benefit of the Administrative Agent, shall be segregated from other property or funds of such Pledgor, and shall be forthwith paid over to the Administrative Agent as Collateral in the exact form received, to be held by the Administrative Agent as Collateral and as further collateral security for the Pledgor Obligations.

(g) Release of Collateral. The Administrative Agent may release any of the Collateral from this Pledge Agreement or may substitute any of the Collateral for other Collateral without altering, varying or diminishing in any way the force, effect, lien, pledge or security interest of this Pledge Agreement as to any Collateral not expressly released or substituted, and this Pledge Agreement shall continue as a first priority lien on all Collateral not expressly released or substituted.

11. Rights of Required Lenders. All rights of the Administrative Agent hereunder, if not exercised by the Administrative Agent, may be exercised by the Required Lenders.

12. Application of Proceeds. Upon the occurrence and during the continuance of an Event of Default, any payments in respect of the Pledgor Obligations and any proceeds of any Collateral, when received by the Administrative Agent or any of the Lenders in cash or its equivalent, will be applied in reduction of the Pledgor Obligations in the order set forth in
Section 9.3 of the Credit Agreement, and each Pledgor irrevocably waives the right to direct the application of such payments and proceeds and acknowledges and agrees that the Administrative Agent shall have the continuing and exclusive right to apply and reapply any and all such payments and proceeds in the Administrative Agent's sole discretion, notwithstanding any entry to the contrary upon any of its books and records.

13. Costs of Counsel. At all times hereafter, the Pledgors agree to promptly pay upon demand any and all reasonable costs and expenses of the Administrative Agent or the Lenders, (a) as required under Section 11.5 of the Credit Agreement and (b) as necessary to protect the Collateral or to exercise any rights or remedies under this Pledge Agreement or with respect to any Collateral. All of the foregoing costs and expenses shall constitute Pledgor Obligations hereunder.

-12-

14. Continuing Agreement.

(a) This Pledge Agreement shall be a continuing agreement in every respect and shall remain in full force and effect during each Collateral Period so long as any of the Pledgor Obligations remain outstanding or any Credit Document is in effect or any Loan or Letter of Credit shall remain outstanding, and until all of the Commitments thereunder shall have terminated (other than any obligations with respect to the indemnities and the representations and warranties set forth in the Credit Documents). Upon a Collateral Termination Date or upon such payment and termination, this Pledge Agreement shall no longer be effective until another Collateral Effective Date occurs and the Administrative Agent and the Lenders shall, upon the request and at the expense of the Pledgors, forthwith release all of its liens and security interests hereunder and shall execute and deliver all Uniform Commercial Code termination statements and/or other documents reasonably requested by the Pledgors evidencing such termination. Notwithstanding the foregoing all releases and indemnities provided hereunder shall survive termination of this Pledge Agreement or any period which is not a Collateral Effective Period, subject to the provisions of the Credit Agreement.

(b) This Pledge Agreement shall continue to be effective or be automatically reinstated, as the case may be, if at any time payment, in whole or in part, of any of the Pledgor Obligations is rescinded or must otherwise be restored or returned by the Administrative Agent or any Lender as a preference, fraudulent conveyance or otherwise under any bankruptcy, insolvency or similar law, all as though such payment had not been made; provided that in the event payment of all or any part of the Pledgor Obligations is rescinded or must be restored or returned, all reasonable costs and expenses (including without limitation any reasonable legal fees and disbursements) incurred by the Administrative Agent or any Lender in defending and enforcing such reinstatement shall be deemed to be included as a part of the Pledgor Obligations.

15. Amendments; Waivers; Modifications. This Pledge Agreement and the provisions hereof may not be amended, waived, modified, changed, discharged or terminated except as set forth in Section 11.6 of the Credit Agreement.

16. Successors in Interest. This Pledge Agreement shall create a continuing security interest in the Collateral and shall be binding upon each Pledgor, its successors and assigns and shall inure, together with the rights and remedies of the Administrative Agent and the Lenders hereunder, to the benefit of the Administrative Agent and the Lenders and their successors and permitted assigns; provided, however, that none of the Pledgors may assign its rights or delegate its duties hereunder other than (a) with the prior written consent of each Lender or the Required Lenders, as required by the Credit Agreement, or (b) as otherwise permitted under the terms of the Credit Agreement. To the fullest extent permitted by law, each Pledgor hereby releases the Administrative Agent and each Lender, and its successors and assigns, from any liability for any act or omission relating to this Pledge Agreement or the Collateral, except for any liability arising

-13-

from the gross negligence or willful misconduct of the Administrative Agent, or such Lender, or its officers, employees or agents.

17. Notices. All notices required or permitted to be given under this Pledge Agreement shall be in conformance with Section 11.1 of the Credit Agreement.

18. Counterparts. This Pledge Agreement may be executed in any number of counterparts, each of which where so executed and delivered shall be an original, but all of which shall constitute one and the same instrument. It shall not be necessary in making proof of this Pledge Agreement to produce or account for more than one such counterpart.

19. Headings. The headings of the sections and subsections hereof are provided for convenience only and shall not in any way affect the meaning or construction of any provision of this Pledge Agreement.

20. Governing Law; Submission to Jurisdiction; Venue.

(a) THIS PLEDGE AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NORTH CAROLINA. Any legal action or proceeding with respect to this Security Agreement may be brought in the courts of the State of North Carolina, or of the United States for the Western District of North Carolina, and, by execution and delivery of this Security Agreement, each Pledgor hereby irrevocably accepts for itself and in respect of its property, generally and unconditionally, the jurisdiction of such courts. Each Pledgor further irrevocably consents to the service of process out of any of the aforementioned courts in any such action or proceeding by the mailing of copies thereof by registered or certified mail, postage prepaid, to it at the address for notices pursuant to Section 11.1 of the Credit Agreement, such service to become effective 15 days after such mailing. Nothing herein shall affect the right of the Administrative Agent to serve process in any other manner permitted by law or to commence legal proceedings or to otherwise proceed against any Pledgor in any other jurisdiction. Each Pledgor agrees that a final judgment in any action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law; provided that nothing in this Section 20 is intended to impair a Pledgor's right under applicable law to appeal or seek a stay of any judgment.

(b) Each Pledgor hereby irrevocably waives any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions or proceedings arising out of or in connection with this Pledge Agreement brought in the courts referred to in subsection
(a) hereof and hereby further irrevocably waives and agrees not to plead or claim in any such court that any such action or proceeding brought in any such court has been brought in an inconvenient forum.

-14-

21. Waiver of Jury Trial. TO THE EXTENT PERMITTED BY APPLICABLE LAW, EACH OF THE PARTIES TO THIS PLEDGE AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS PLEDGE AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

22. Severability. If any provision of any of the Pledge Agreement is determined to be illegal, invalid or unenforceable, such provision shall be fully severable and the remaining provisions shall remain in full force and effect and shall be construed without giving effect to the illegal, invalid or unenforceable provisions.

23. Entirety. This Pledge Agreement and the other Credit Documents represent the entire agreement of the parties hereto and thereto, and supersede all prior agreements and understandings, oral or written, if any, including any commitment letters or correspondence relating to the Credit Documents or the transactions contemplated herein and therein.

24. Survival. Subject to the provisions of the Credit Agreement, all representations and warranties of the Pledgors hereunder shall survive the execution and delivery of this Pledge Agreement and the other Credit Documents, the delivery of the Notes and the making of the Loans and the issuance of the Letters of Credit under the Credit Agreement.

25. Other Security. To the extent that any of the Pledgor Obligations are now or hereafter secured by property other than the Collateral (including, without limitation, real and other personal property owned by a Pledgor), or by a guarantee, endorsement or property of any other Person, then the Administrative Agent and the Lenders shall have the right to proceed against such other property, guarantee or endorsement upon the occurrence of any Event of Default, and the Administrative Agent and the Lenders have the right, in their sole discretion, to determine which rights, security, liens, security interests or remedies the Administrative Agent and the Lenders shall at any time pursue, relinquish, subordinate, modify or take with respect thereto, without in any way modifying or affecting any of them or any of the Administrative Agent's and the Lenders' rights or the Pledgor Obligations under this Pledge Agreement, under any other of the Credit Documents.

26. Joint and Several Obligations of Pledgors.

(a) Each of the Pledgors is accepting joint and several liability hereunder in consideration of the financial accommodation to be provided by the Lenders under the Credit Agreement, for the mutual benefit, directly and indirectly, of each of the Pledgors and in consideration of the undertakings of each of the Pledgors to accept joint and several liability for the obligations of each of them.

(b) Each of the Pledgors jointly and severally hereby irrevocably and unconditionally accepts, not merely as a surety but also as a co-debtor, joint and several liability with the other Pledgors with respect to the payment and performance of all of the Pledgor Obligations arising under this Pledge Agreement and the other Credit

-15-

Documents, it being the intention of the parties hereto that all the Pledgor Obligations shall be the joint and several obligations of each of the Pledgors without preferences or distinction among them.

(c) Notwithstanding any provision to the contrary contained herein or in any other of the Credit Documents, to the extent the obligations of a Guarantor shall be adjudicated to be invalid or unenforceable for any reason (including, without limitation, because of any applicable state or federal law relating to fraudulent conveyances or transfers) then the obligations of each Guarantor hereunder shall be limited to the maximum amount that is permissible under applicable law (whether federal or state and including, without limitation, the Bankruptcy Code).

27. Effective Date. Notwithstanding anything in this Pledge Agreement to the contrary, (a) neither the pledges and grants of security interests pursuant to Section 2 hereof, nor any of the covenants and other agreements contained herein, shall become effective until a Collateral Effective Date or be effective other than during a Collateral Period; provided that on any such Collateral Effective Date such pledges, grants of security interests, covenants and other agreements shall become effective immediately and without any further action on the part of any of the parties hereto and shall remain effective during the ensuing Collateral Period; and (b) none of the schedules referred to herein shall be required to be completed or delivered to the Administrative Agent until a Collateral Effective Date; provided that on any such Collateral Effective Date, such schedules shall immediately be completed and delivered to the Administrative Agent and thereafter such schedules (as they may be amended from time to time) shall constitute a part of this Pledge Agreement.

[remainder of page intentionally left blank]

-16-

Each of the parties hereto has caused a counterpart of this Pledge Agreement to be duly executed and delivered as of the date first above written.

BORROWERS:             BRANDYWINE REALTY TRUST,
                       a Maryland real estate investment trust

                       By: /s/ Gerard H. Sweeney
                           -----------------------------------------------------
                           Name:  Gerard H. Sweeney
                           Title: President and Chief Executive Officer

BRANDYWINE OPERATING PARTNERSHIP,
L.P., a Delaware limited partnership

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its general
partner

By: /s/ Gerard H. Sweeney
   --------------------------------------
    Name:  Gerard H. Sweeney
    Title: President and Chief
           Executive Officer


GUARANTORS:        LC/N HORSHAM LIMITED PARTNERSHIP, a
                   Pennsylvania limited partnership

                   By:  Witmer Operating Partnership I, L.P., a Delaware
                        limited partnership, its general partner

                        By:  Brandywine Witmer, L.L.C., a Pennsylvania
                             limited liability company, its general partner

                             By:  Brandywine Operating Partnership, L.P., a
                                  Delaware limited partnership, its sole
                                  member

                                  By:  Brandywine Realty Trust, a
                                       Maryland real estate investment
                                       trust, its general partner

LC/N KEITH VALLEY LIMITED PARTNERSHIP I, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


NICHOLS LANSDALE LIMITED PARTNERSHIP III,
a Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

NEWTECH III LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


WITMER OPERATING PARTNERSHIP I, L.P., a
Delaware limited partnership

By: Brandywine Witmer, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

NEWTECH IV LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


C/N OAKLANDS LIMITED PARTNERSHIP I, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

FIFTEEN HORSHAM, L.P., a Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


C/N LEEDOM LIMITED PARTNERSHIP II, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

C/N IRON RUN LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

C/N OAKLANDS LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

IRON RUN LIMITED PARTNERSHIP V, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TB I, L.P., a Pennsylvania limited partnership

By: Brandywine TB I, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.P., a Pennsylvania limited partnership

By: Brandywine TB II, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.P., a Pennsylvania limited partnership

By: Brandywine TB III, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TB VI, L.P., a Pennsylvania limited partnership

By: Brandywine TB VI, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE DOMINION, L.P., a Pennsylvania limited partnership

By: Brandywine Dominion, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.P., a Pennsylvania limited partnership

By: Brandywine P.M., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE I.S., L.P., a Pennsylvania limited partnership

By: Brandywine I.S., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE CENTRAL, L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.P., a Pennsylvania limited partnership, its general partner

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


APPOP 2, L.P., a Delaware limited partnership

By: AAP Sub Three, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: AAPOP Umbrella, L.P., a Delaware limited partnership, one of its general partners

By: AAP Sub Two, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: Atlantic American Properties Trust, a Maryland real estate investment trust, one of its general partners

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE F.C., L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE REALTY PARTNERS, a
Pennsylvania general partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, one of its partners

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE ACQUISITIONS, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE MAIN STREET, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, one of its members

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: Brandywine Acquisitions, LLC, a Delaware limited liability company, one of its members

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

1100 BRANDYWINE, LLC, a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE LEASING, LLC, a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TB I, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB VI, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE WITMER, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE DOMINION, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE I.S., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE F.C., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TRENTON URBAN RENEWAL, L.L.C., a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE DABNEY, L.L.C., a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE AXINN I, LLC, a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE AXINN II, LLC, a Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


APP SUB THREE, INC., a Delaware corporation

By: /s/ Gerard H. Sweeney
    --------------------------------
    Gerard H. Sweeney
    President and Chief Executive Officer of
    each of the above-named entities


Accepted and agreed to in Charlotte, North Carolina as of the date first above written.

NATIONSBANK, N.A., as Administrative Agent

By: /s/ Nationsbank, N.A.
   -------------------------------------------
    Name:
    Title:


EXHIBIT 10.3

CREDIT AGREEMENT

among

BRANDYWINE REALTY TRUST

and

BRANDYWINE OPERATING PARTNERSHIP, L.P.

as Borrowers

and

THE SUBSIDIARIES OF THE BORROWERS

as Guarantors

and

THE LENDERS IDENTIFIED HEREIN

and

NATIONSBANC MONTGOMERY SECURITIES LLC

as Lead Arranger and Book Manager

and

NATIONSBANC MORTGAGE CAPITAL CORP.

as Administrative Agent

DATED AS OF SEPTEMBER 28, 1998


                               TABLE OF CONTENTS
                                                                                                               Page
                                                                                                               ----
SECTION 1  DEFINITIONS AND ACCOUNTING TERMS.......................................................................1
         1.2 Computation of Time Periods and Other Definition Provisions.........................................19
         1.3 Accounting Terms....................................................................................19
         1.4 Joint Venture Investments...........................................................................19

SECTION 2  CREDIT FACILITY.......................................................................................20
         2.1 Loans...............................................................................................20
         2.3 Joint and Several Liability of the Borrowers........................................................22
         2.4 Appointment of BOP..................................................................................24
         2.5 Non-Recourse........................................................................................24

SECTION 3  GENERAL PROVISIONS APPLICABLE TO LOANS AND LETTERS OF CREDIT..........................................24
         3.1  Interest...........................................................................................24
         3.2  Place and Manner of Payments.......................................................................25
         3.5  Payment in full at Maturity........................................................................26
         3.6  Computations of Interest and Fees..................................................................26
         3.7  Pro Rata Treatment.................................................................................27
         3.8  Sharing of Payments................................................................................27
         3.9  Capital Adequacy...................................................................................28
         3.10 Inability To Determine Interest Rate...............................................................28
         3.11 Illegality.........................................................................................29
         3.12 Requirements of Law................................................................................29
         3.13 Taxes..............................................................................................30
         3.14 Compensation.......................................................................................32
         3.15 Mitigation; Mandatory Assignment...................................................................33

SECTION 4  GUARANTY..............................................................................................33
         4.1 Guaranty of Payment.................................................................................33
         4.2 Obligations Unconditional...........................................................................33
         4.3 Modifications.......................................................................................34
         4.4 Waiver of Rights....................................................................................35
         4.5 Reinstatement.......................................................................................35
         4.6 Remedies............................................................................................35
         4.7 Limitation of Guaranty..............................................................................36
         4.8 Rights of Contribution..............................................................................36

SECTION 5  CONDITIONS PRECEDENT..................................................................................36
         5.1 Closing Conditions..................................................................................36
         5.2 Conditions to All Extensions of Credit..............................................................40

SECTION 6  REPRESENTATIONS AND WARRANTIES........................................................................41
         6.1 Financial Condition.................................................................................41
         6.2 No Material Change..................................................................................41
         6.3 Organization and Good Standing......................................................................41

i

         6.4  Due Authorization..................................................................................41
         6.5  No Conflicts.......................................................................................42
         6.6  Consents...........................................................................................42
         6.7  Enforceable Obligations............................................................................42
         6.8  No Default.........................................................................................42
         6.9  Ownership..........................................................................................42
         6.10 Indebtedness.......................................................................................43
         6.11 Litigation.........................................................................................43
         6.12 Taxes..............................................................................................43
         6.13 Compliance with Law................................................................................43
         6.14 Compliance with ERISA..............................................................................43
         6.15 Organization Structure/Subsidiaries................................................................44
         6.16 Use of Proceeds; Margin Stock......................................................................45
         6.17 Government Regulation..............................................................................45
         6.18 Environmental Matters..............................................................................45
         6.19 Solvency...........................................................................................46
         6.20 Investments........................................................................................47
         6.21 Location of Properties.............................................................................47
         6.22 Disclosure.........................................................................................47
         6.23 Licenses, etc......................................................................................47
         6.24 No Burdensome Restrictions.........................................................................47
         6.25 Year 2000 Compliance...............................................................................47
         6.26 Excluded Material Subsidiaries.....................................................................47

SECTION 7  AFFIRMATIVE COVENANTS.................................................................................48
         7.1  Information Covenants..............................................................................48
         7.2  Financial Covenants................................................................................52
         7.3  Preservation of Existence..........................................................................53
         7.4  Books and Records..................................................................................53
         7.5  Compliance with Law................................................................................53
         7.6  Payment of Taxes and Other Indebtedness............................................................53
         7.7  Insurance..........................................................................................54
         7.8  Maintenance of Assets..............................................................................54
         7.9  Performance of Obligations.........................................................................54
         7.10 Use of Proceeds....................................................................................54
         7.11 Audits/Inspections.................................................................................55
         7.12 Additional Credit Parties..........................................................................55
         7.13 Interest Rate Protection Agreements................................................................55
         7.14 [Intentionally Omitted]............................................................................55
         7.15 Construction.......................................................................................55
         7.16 Acquisitions.......................................................................................56

SECTION 8  NEGATIVE COVENANTS....................................................................................56
         8.1 Indebtedness........................................................................................56
         8.2 Liens...............................................................................................56
         8.3 Nature of Business..................................................................................57
         8.4 Consolidation and Merger............................................................................57
         8.5 Sale or Lease of Assets.............................................................................57

ii

         8.6  Advances, Investments and Loans....................................................................57
         8.7  Restricted Payments................................................................................58
         8.8  Transactions with Affiliates.......................................................................58
         8.9  Fiscal Year; Organizational Documents..............................................................58
         8.10 Limitations........................................................................................58
         8.11 Other Negative Pledges.............................................................................59
         8.12 Construction and Development.......................................................................59

SECTION 9  EVENTS OF DEFAULT.....................................................................................59
         9.1 Events of Default...................................................................................59
         9.2 Acceleration; Remedies..............................................................................62
         9.3 Allocation of Payments After Event of Default.......................................................63

SECTION 10  AGENCY PROVISIONS....................................................................................64
         10.1 Appointment........................................................................................64
         10.2 Delegation of Duties...............................................................................64
         10.3 Exculpatory Provisions.............................................................................64
         10.4 Reliance on Communications.........................................................................65
         10.5 Notice of Default..................................................................................65
         10.6 Non-Reliance on Administrative Agent and Other Lenders.............................................66
         10.7 Indemnification....................................................................................66
         10.8 Administrative Agent in Its Individual Capacity....................................................67
         10.9 Successor Agent....................................................................................67

SECTION 11  MISCELLANEOUS........................................................................................67
         11.1  Notices...........................................................................................67
         11.2  Right of Set-Off..................................................................................68
         11.3  Benefit of Agreement..............................................................................68
         11.4  No Waiver; Remedies Cumulative....................................................................70
         11.5  Payment of Expenses; Indemnification..............................................................70
         11.6  Amendments, Waivers and Consents..................................................................71
         11.7  Counterparts/Telecopy.............................................................................72
         11.8  Headings..........................................................................................72
         11.9  Defaulting Lender.................................................................................72
         11.10 Survival of Indemnification and Representations and Warranties....................................73
         11.11 Governing Law; Jurisdiction.......................................................................73
         11.12 Waiver of Jury Trial..............................................................................73
         11.13 Time..............................................................................................74
         11.14 Severability......................................................................................74
         11.15 Entirety..........................................................................................74
         11.16 Binding Effect....................................................................................74
         11.17 Confidentiality...................................................................................75
         11.18 [Intentionally Omitted]...........................................................................75
         11.19 Further Assurances................................................................................75
         11.20 Release of Guarantors.............................................................................75

iii

SCHEDULES

Schedule 1.1(a)   Commitment Percentages
Schedule 1.1(b)   Project Bell Properties
Schedule 1.1(c)   Excluded Material Subsidiaries
Schedule 6.15     Organization Structure/Subsidiaries
Schedule 6.21     Properties
Schedule 8.2      Existing Liens
Schedule 8.5      Preapproved Transactions
Schedule 11.1     Notices

EXHIBITS

Exhibit 2.1(b)    Form of Notice of Borrowing
Exhibit 2.1(e)    Form of Notice of Continuation/Conversion
Exhibit 2.1(g)    Form of Note
Exhibit 7.1(c)    Form of Officer's Certificate
Exhibit 7.12      Form of Joinder Agreement
Exhibit 11.3      Form of Assignment Agreement

iv

CREDIT AGREEMENT

THIS CREDIT AGREEMENT (this "Credit Agreement") is entered into as of September 28, 1998 among BRANDYWINE REALTY TRUST ("BRT"), a Maryland real estate investment trust and BRANDYWINE OPERATING PARTNERSHIP, L.P. ("BOP"), a Delaware limited partnership (collectively the "Borrowers"), certain Subsidiaries of the Borrowers as Guarantors, the Lenders (as defined herein), NATIONSBANC MONTGOMERY SECURITIES LLC as Lead Arranger and Book Manager and NATIONSBANC MORTGAGE CAPITAL CORP., as Administrative Agent for the Lenders (the "Administrative Agent").

RECITALS

WHEREAS, the Borrowers desire to borrow up to $150 million from the Lenders on a short term basis;

WHEREAS, the Guarantors have agreed to unconditionally guarantee all the obligations of the Borrowers hereunder; and

WHEREAS, the Lenders party hereto have agreed to make the requested bridge facility available to the Borrowers on the terms and conditions hereinafter set forth.

NOW, THEREFORE, IN CONSIDERATION of the premises and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

SECTION 1

DEFINITIONS AND ACCOUNTING TERMS

1.1 Definitions.

As used herein, the following terms shall have the meanings herein specified unless the context otherwise requires. Defined terms herein shall include in the singular number the plural and in the plural the singular:

"Additional Fee Letter" means that certain fee letter, dated as of the Closing Date, between the Borrowers and the Administrative Agent, as amended, modified, supplemented or replaced from time to time.

"Adjusted Base Rate" means the Base Rate plus .25% per annum.

"Adjusted Eurodollar Rate" means the Eurodollar Rate plus 2.0% per annum.


"Adjusted NOI" means NOI less (a) an annual sum of $.50 per square foot for all Properties and (b) all interest income of the Combined Parties for the applicable period.

"Adjusted Total Assets" means Total Assets less the Project Bell Properties held by Excluded Material Subsidiaries.

"Administrative Agent" means NationsBanc Mortgage Capital Corp. (or any successor thereto) or any successor administrative agent appointed pursuant to Section 10.9.

"Affiliate" means, with respect to any Person, any other Person directly or indirectly controlling (including but not limited to all directors and officers of such Person), controlled by or under direct or indirect common control with such Person. A Person shall be deemed to control a corporation, partnership, limited liability company or real estate investment trust if such Person possesses, directly or indirectly, the power (i) to vote 10% or more of the securities having ordinary voting power for the election of directors of such corporation, limited liability company or real estate investment trust or to vote 10% or more of the partnership interests of such partnership or (ii) to direct or cause direction of the management and policies of such corporation or partnership, whether through the ownership of voting securities, as managing or general partner, by contract or otherwise.

"Agency Services Address" means NationsBanc Mortgage Capital Corp., 6610 Rockledge Drive, 6th Floor, Bethesda, Maryland 20817, Attn.: Eleanor Mitchell-Wharton, or such other address as may be identified by written notice from the Administrative Agent to the Borrowers.

"Annualized Adjusted NOI" means Adjusted NOI for the most recent fiscal quarter multiplied times four.

"Annualized Capitalized Adjusted NOI" means Annualized Adjusted NOI divided by the Capitalization Rate.

"Annualized Capitalized Modified Adjusted NOI" means Annualized Modified Adjusted NOI divided by the Capitalization Rate.

"Annualized Modified Adjusted NOI" means an amount equal to
(a) Adjusted NOI for the prior fiscal quarter for all Properties owned during such entire fiscal quarter multiplied times four plus
(b) NOI for all Properties acquired during such fiscal quarter multiplied by a fraction equal to 365/the number of days such Property was owned by a Combined Party.

"Bankruptcy Code" means the Bankruptcy Code in Title 11 of the United States Code, as amended, modified, succeeded or replaced from time to time.

"Base Rate" means, for any day, the rate per annum equal to the greater of (a) the Federal Funds Rate in effect on such day plus 1/2 of 1% or (b) the Prime Rate in effect on

2

such day. Any change in the Base Rate due to a change in the Prime Rate or the Federal Funds Rate shall be effective on the effective date of such change in the Prime Rate or the Federal Funds Rate, respectively.

"Base Rate Loan" means a Loan bearing interest based at a rate determined by reference to the Base Rate.

"BOP" means Brandywine Operating Partnership, L.P., a Delaware limited partnership, together with any successors and permitted assigns.

"Borrowers" means BRT and BOP and "Borrower" means either one of them.

"BRT" means Brandywine Realty Trust, a Maryland real estate investment trust, together with any successors and permitted assigns.

"Business Day" means any day other than a Saturday, a Sunday, a legal holiday or a day on which banking institutions are authorized or required by law or other governmental action to close in Bethesda, Maryland, Charlotte, North Carolina or New York, New York; provided that in the case of Eurodollar Loans, such day is also a day on which dealings between banks are carried on in U.S. dollar deposits in the London interbank market.

"Capital Expenditures" means all expenditures of the Borrowers and their Subsidiaries which, in accordance with GAAP, would be classified as Capital Expenditures, including, without limitation, Capital Leases.

"Capital Lease" means, as applied to any Person, any lease of any property (whether real, personal or mixed) by that Person as lessee which, in accordance with GAAP, is or should be accounted for as a capital lease on the balance sheet of that Person.

"Capitalization Rate" means, as of the Closing Date, 9.5%; however, the Capitalization Rate shall be reviewed annually (but not more often than annually) by the Lenders (beginning with the date one year after the Closing Date) and shall be subject to adjustment by the Required Lenders, in their sole discretion, based upon market conditions for comparable property types; provided that the Capitalization Rate cannot be adjusted by more than 1.25% annually.

"Cash Equivalents" means (a) securities issued or directly and fully guaranteed or insured by the United States of America or any agency or instrumentality thereof (provided that the full faith and credit of the United States of America is pledged in support thereof) having maturities of not more than twelve months from the date of acquisition, (b) U.S. dollar denominated time and demand deposits and certificates of deposit of (i) any Lender or any of its Affiliates, (ii) any domestic commercial bank having capital and surplus in excess of $500,000,000 or (iii) any bank whose short-term commercial paper rating from S&P is at least A-1 or the equivalent thereof or from Moody's is at least P-1 or the equivalent thereof (any such bank being an "Approved Bank"), in each case with maturities of not more than 270 days from the date of acquisition,
(c) commercial paper and variable

3

or fixed rate notes issued by any Approved Bank (or by the parent company thereof) or any variable rate notes issued by, or guaranteed by, any domestic corporation rated A-1 (or the equivalent thereof) or better by S&P or P-1 (or the equivalent thereof) or better by Moody's and maturing within six months of the date of acquisition, (d) repurchase agreements with a bank or trust company (including any of the Lenders) or securities dealer having capital and surplus in excess of $500,000,000 for direct obligations issued by or fully guaranteed by the United States of America in which a Credit Party shall have a perfected first priority security interest (subject to no other Liens) and having, on the date of purchase thereof, a fair market value of at least 100% of the amount of the repurchase obligations and (e) Investments, classified in accordance with GAAP as current assets, in money market investment programs registered under the Investment Company Act of 1940, as amended, which are administered by financial institutions having capital of at least $500,000,000 and the portfolios of which are limited to Investments of the character described in the foregoing subdivisions (a) through (d).

"Change of Control" means any of the following events:

(a) any "person" or "group" (within the meaning of Section 13(d) or 14(d) of the Exchange Act) has become, directly or indirectly, the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the Exchange Act, except that a Person shall be deemed to have "beneficial ownership" of all shares that any such Person has the right to acquire, whether such right is exercisable immediately or only after the passage of time), by way of merger, consolidation or otherwise, of 20% or more of the voting power of BRT on a fully-diluted basis, after giving effect to the conversion and exercise of all outstanding warrants, options and other securities of BRT convertible into or exercisable for voting power of BRT (whether or not such securities are then currently convertible or exercisable); or

(b) BRT fails to directly own at least 75% of the aggregate ownership interests in BOP.

"Closing Date" means the date hereof.

"Code" means the Internal Revenue Code of 1986, as amended, and any successor statute thereto, as interpreted by the rules and regulations issued thereunder, in each case as in effect from time to time. References to sections of the Code shall be construed also to refer to any successor sections.

"Committed Amount" means ONE HUNDRED FIFTY MILLION DOLLARS ($150,000,000).

"Commitment Percentage" means, for each Lender, the percentage identified as its Commitment Percentage on Schedule 1.1(a), as such percentage may be modified in connection with any assignment made in accordance with the provisions of Section 11.3.

4

"Commitments" means the commitment of each Lender with respect to the Committed Amount.

"Combined Parties" means the Credit Parties and their Subsidiaries and all joint ventures or partnerships to which a Credit Party or one of its Subsidiaries is a party.

"Credit Documents" means this Credit Agreement, the Notes, and all other related agreements and documents issued or delivered hereunder or thereunder or pursuant hereto or thereto.

"Credit Exposure" has the meaning set forth in the definition of Required Lenders in this Section 1.1.

"Credit Parties" means the Borrowers and the Guarantors and "Credit Party" means any one of them.

"Debt Payments" means, as of the date of determination, for the Combined Parties, the sum of (a) Interest Expense plus (b) all payments of principal and any required prepayments on Funded Debt of the Combined Parties (other than balloon payments), for the applicable period, ending on the date of determination (including the principal component of payments due on Capital Leases during the applicable period ending on the date of determination) plus (c) any letter of credit fees.

"Debt Service Coverage Ratio" means the ratio of (a) Annualized Modified Adjusted NOI to (b) the Market Funded Debt Payments.

"Default" means any event, act or condition which with notice or lapse of time, or both, would constitute an Event of Default.

"Defaulting Lender" means, at any time, any Lender that, (a) has failed to make a Loan or purchase a Participation Interest required pursuant to the terms of this Credit Agreement (but only for so long as such Loan is not made or such Participation Interest is not purchased), (b) has failed to pay to the Administrative Agent or any Lender an amount owed by such Lender pursuant to the terms of this Credit Agreement (but only for so long as such amount has not been repaid) or (c) has been deemed insolvent or has become subject to a bankruptcy or insolvency proceeding or to a receiver, trustee or similar official.

"Dollars" and "$" means dollars in lawful currency of the United States of America.

"Effective Date" means the date, as specified by the Administrative Agent, on which the conditions set forth in Section 5.1 shall have been fulfilled (or waived in the sole discretion of the Lenders) and on which the initial Loans shall have been made and/or the initial Letters of Credit shall have been issued.

5

"Eligible Assignee" means (a) any Lender or any Affiliate or subsidiary of a Lender and (b) any other commercial bank, financial institution, institutional lender or "accredited investor" (as defined in Regulation D of the Securities and Exchange Commission) with (i) total assets of at least $25 billion, (ii) a long term unsecured debt rating of BBB+ or better from S&P or its equivalent and (iii) an office in the United States. Neither the Borrower nor an Affiliate of the Borrower shall qualify as an Eligible Assignee.

"Environmental Claim" means any investigation, written notice, violation, written demand, written allegation, action, suit, injunction, judgment, order, consent decree, penalty, fine, lien, proceeding, or written claim whether administrative, judicial or private in nature arising (a) pursuant to, or in connection with, an actual or alleged violation of, any Environmental Law, (b) in connection with any Hazardous Material, (c) from any assessment, abatement, removal, remedial, corrective, or other response action in connection with an Environmental Law or other order of a Governmental Authority or (d) from any actual or alleged damage, injury, threat, or harm to health, safety, natural resources, or the environment.

"Environmental Laws" means any current or future legal requirement of any Governmental Authority pertaining to (a) the protection of health, safety, and the indoor or outdoor environment,
(b) the conservation, management, or use of natural resources and wildlife, (c) the protection or use of surface water and groundwater or (d) the management, manufacture, possession, presence, use, generation, transportation, treatment, storage, disposal, release, threatened release, abatement, removal, remediation or handling of, or exposure to, any hazardous or toxic substance or material or (e) pollution (including any release to land surface water and groundwater) and includes, without limitation, the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended by the Superfund Amendments and Reauthorization Act of 1986, 42 USC 9601 et seq., Solid Waste Disposal Act, as amended by the Resource Conservation and Recovery Act of 1976 and Hazardous and Solid Waste Amendment of 1984, 42 USC 6901 et seq., Federal Water Pollution Control Act, as amended by the Clean Water Act of 1977, 33 USC 1251 et seq., Clean Air Act of 1966, as amended, 42 USC 7401 et seq., Toxic Substances Control Act of 1976, 15 USC 2601 et seq., Hazardous Materials Transportation Act, 49 USC App. 1801 et seq., Occupational Safety and Health Act of 1970, as amended, 29 USC 651 et seq., Oil Pollution Act of 1990, 33 USC 2701 et seq., Emergency Planning and Community Right-to-Know Act of 1986, 42 USC 11001 et seq., National Environmental Policy Act of 1969, 42 USC 4321 et seq., Safe Drinking Water Act of 1974, as amended, 42 USC 300(f) et seq., any analogous implementing or successor law, and any amendment, rule, regulation, order, or directive issued thereunder.

"Equity Issuance" means any issuance by a Credit Party to any Person (other than another Credit Party) of shares of its capital stock, common shares of beneficial interest or other equity interests, including pursuant to the exercise of options or warrants or pursuant to the conversion of any debt securities to equity; provided that the definition of Equity Issuance as used herein shall not include (a) issuances of equity to employees of a Credit Party to the extent such issuances do not exceed $1,000,000 in any one instance or $5,000,000, in the aggregate, during the term of this Credit Agreement or (b) issuances of

6

common stock for the sole purpose of conversion or redemption of convertible preferred stock or perpetual preferred stock.

"ERISA" means the Employee Retirement Income Security Act of 1974, as amended, and any successor statute thereto, as interpreted by the rules and regulations thereunder, all as the same may be in effect from time to time. References to sections of ERISA shall be construed also to refer to any successor sections.

"ERISA Affiliate" means an entity, whether or not incorporated, which is under common control with a Borrower or any of its Subsidiaries within the meaning of Section 4001(a)(14) of ERISA, or is a member of a group which includes a Borrower and which is treated as a single employer under Sections 414(b) or (c) of the Code.

"ERISA Event" means (i) with respect to any Plan, the occurrence of a Reportable Event or the substantial cessation of operations (within the meaning of Section 4062(e) of ERISA); (ii) the withdrawal of a Borrower, any Subsidiary of a Borrower or any ERISA Affiliate from a Multiple Employer Plan during a plan year in which it was a substantial employer (as such term is defined in Section 4001(a)(2) of ERISA), or the termination of a Multiple Employer Plan;
(iii) the distribution of a notice of intent to terminate or the actual termination of a Plan pursuant to Section 4041(a)(2) or 4041A of ERISA; (iv) the institution of proceedings to terminate or the actual termination of a Plan by the PBGC under Section 4042 of ERISA;
(v) any event or condition which might constitute grounds under
Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan; (vi) the complete or partial withdrawal of a Borrower, any Subsidiary of a Borrower or any ERISA Affiliate from a Multiemployer Plan; (vii) the conditions for imposition of a lien under Section 302(f) of ERISA exist with respect to any Plan; or (viii) the adoption of an amendment to any Plan requiring the provision of security to such Plan pursuant to Section 307 of ERISA.

"Eurodollar Loan" means a Loan bearing interest based at a rate determined by reference to the Adjusted Eurodollar Rate.

"Eurodollar Rate" means, for the Interest Period for each Eurodollar Loan comprising part of the same borrowing (including conversions, extensions and renewals), a per annum interest rate determined pursuant to the following formula:

Eurodollar Rate = London Interbank Offered Rate


1 - Eurodollar Reserve Percentage

"Eurodollar Reserve Percentage" means, for any day, that percentage (expressed as a decimal) which is in effect from time to time under Regulation D of the Board of Governors of the Federal Reserve System (or any successor), as such regulation may be amended from time to time, or any successor regulation, as the maximum reserve requirement (including, without limitation, any basic, supplemental, emergency, special, or marginal reserves) applicable with respect to Eurodollar liabilities as that term is defined in Regulation D (or against any other category of liabilities that includes deposits by reference to which the

7

interest rate of Eurodollar Loans is determined) with respect to member banks of the Federal Reserve System, whether or not any Lender has any Eurodollar liabilities subject to such reserve requirement at that time. Eurodollar Loans shall be deemed to constitute Eurodollar liabilities and as such shall be deemed subject to reserve requirements without benefits of credits for proration, exceptions or offsets that may be available from time to time to a Lender. The Adjusted Eurodollar Rate shall be adjusted automatically on and as of the effective date of any change in the Eurodollar Reserve Percentage.

"Event of Default" means any of the events or circumstances described in Section 9.1.

"Exchange Act" means the Securities Exchange Act of 1934, as amended, modified, succeeded or replaced from time to time, and the rules and regulations promulgated thereunder.

"Excluded Material Subsidiaries" means the Material Subsidiaries set forth on Schedule 1.1(c).

"Existing Bridge Facility" means that certain Promissory Note, dated May 7, 1998, executed by the Borrowers in favor of NationsBank, N.A., in the face amount of $150 million, and all documents and instruments executed and delivered in connection therewith.

"Extension of Credit" means, as to any Lender, the making of a Loan by such Lender (or a participation therein by a Lender).

"Federal Funds Rate" means, for any day, the rate per annum (rounded upward, if necessary, to the nearest 1/100th of 1%) equal to the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the Business Day next succeeding such day; provided that (a) if such day is not a Business Day, the Federal Funds Rate for such day shall be such rate on such transactions on the next preceding Business Day and (b) if no such rate is so published on such next preceding Business Day, the Federal Funds Rate for such day shall be the average rate quoted to the Administrative Agent on such day on such transactions as determined by the Administrative Agent.

"Fee Letter" means that certain letter agreement, dated as of July 30, 1998, between the Administrative Agent and BRT, as amended, modified, supplemented or replaced from time to time.

"Fixed Charge Coverage Ratio" means, for any period, the ratio of (a) Adjusted NOI for such period to (b) the sum of Debt Payments for such period plus all dividends on preferred stock for such period plus Letter of Credit Fees payable pursuant to Section 3.4(b)(i) of the Senior Credit Agreement for such period.

8

"Funded Debt" means, without duplication, the sum of (a) all Indebtedness of the Combined Parties for borrowed money, (b) all purchase money Indebtedness of the Combined Parties, (c) the principal portion of all obligations of the Combined Parties under Capital Leases, (d) all obligations, contingent or otherwise, relative to the face amount of all letters of credit (other than letters of credit supporting trade payables in the ordinary course of business), whether or not drawn, and banker's acceptances issued for the account of a Combined Party (it being understood that, to the extent an undrawn letter of credit supports another obligation consisting of Indebtedness, in calculating aggregated Funded Debt only such other obligation shall be included), (e) all Guaranty Obligations of the Combined Parties with respect to Funded Debt of another Person, (f) all Funded Debt of another entity secured by a Lien on any property of the Combined Parties whether or not such Funded Debt has been assumed by a Combined Party, (g) all Funded Debt of any partnership or unincorporated joint venture to the extent a Combined Party is legally obligated or has a reasonable expectation of being liable with respect thereto, net of any assets of such partnership or joint venture, (h) the principal balance outstanding under any synthetic lease, tax retention operating lease, off-balance sheet loan or similar off-balance sheet financing product of a Combined Party where such transaction is considered borrowed money indebtedness for tax purposes but is classified as an operating lease in accordance with GAAP, (i) all obligations of the Combined Parties in respect of interest rate protection agreements, foreign currency exchange agreements or other interest or exchange rate or commodity price hedging agreements and (j) all take out loan commitments to the extent such take out commitment is not supported by a financial commitment from a third party containing standard terms and conditions. The calculation of Funded Debt of the Combined Parties shall be subject to Section 1.4.

"Funds From Operations", when used with respect to any Person, shall have the meaning given to such term in, and shall be calculated in accordance with, standards promulgated by the National Association of Real Estate Investment Trusts in effect from time to time.

"GAAP" means generally accepted accounting principles in the United States applied on a consistent basis and subject to Section 1.3.

"Governmental Authority" means any Federal, state, local or provincial court or governmental agency, authority, instrumentality or regulatory body.

"Guarantors" means (a) the Material Subsidiaries of the Borrowers, as of the Closing Date, other than the Excluded Material Subsidiaries and (b) such other Persons who may from time to time execute a Joinder Agreement (or otherwise consent in writing to becoming a Guarantor hereunder), as required by Section 7.12 or otherwise, in each case together with their successors and assigns.

"Guaranty Obligations" means, with respect to any Person, without duplication, any obligations (other than endorsements in the ordinary course of business of negotiable instruments for deposit or collection) guaranteeing or intended to guarantee any Indebtedness of any other Person in any manner, whether direct or indirect, and including

9

without limitation any obligation, whether or not contingent, (a) to purchase any such Indebtedness or other obligation or any property constituting security therefor, (b) to advance or provide funds or other support for the payment or purchase of such indebtedness or obligation or to maintain working capital, solvency or other balance sheet condition of such other Person (including, without limitation, maintenance agreements, comfort letters, take or pay arrangements, put agreements or similar agreements or arrangements) for the benefit of the holder of Indebtedness of such other Person, (c) to lease or purchase property, securities or services primarily for the purpose of assuring the owner of such Indebtedness or (d) to otherwise assure or hold harmless the owner of such Indebtedness or obligation against loss in respect thereof. The amount of any Guaranty Obligation hereunder shall (subject to any limitations set forth therein) be deemed to be an amount equal to the outstanding principal amount (or maximum principal amount, if larger) of the Indebtedness in respect of which such Guaranty Obligation is made.

"Hazardous Materials" means any substance, material or waste defined or regulated in or under any Environmental Laws.

"Incentive Stock Plan" means the BRT 1997 Long-Term Incentive Plan, as amended from time to time, and any other equity incentive plan hereafter established by BRT pursuant to which awards of equity interests in BRT may be made to employees of BRT or a Subsidiary.

"Indebtedness" of any Person means, without duplication, (a) all obligations of such Person for borrowed money, (b) all obligations of such Person evidenced by bonds, debentures, notes or similar instruments, or upon which interest payments are customarily made (c) all obligations of such Person under conditional sale or other title retention agreements relating to property purchased by such Person to the extent of the value of such property (other than customary reservations or retentions of title under agreements with suppliers entered into in the ordinary course of business), (d) all obligations, other than intercompany items, of such Person issued or assumed as the deferred purchase price of property or services purchased by such Person which would appear as liabilities on a balance sheet of such Person, (e) all Indebtedness of others secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on, or payable out of the proceeds of production from, property owned or acquired by such Person, whether or not the obligations secured thereby have been assumed, (f) all Guaranty Obligations of such Person, (g) the principal portion of all obligations of such Person under (i) Capital Leases and (ii) any synthetic lease, tax retention operating lease, off-balance sheet loan or similar off-balance sheet financing product of such Person where such transaction is considered borrowed money indebtedness for tax purposes but is classified as an operating lease in accordance with GAAP, (h) all obligations of such Person in respect of interest rate protection agreements, foreign currency exchange agreements, or other interest or exchange rate or commodity price hedging agreements, (i) the maximum amount of all performance and standby letters of credit issued or bankers' acceptances facilities created for the account of such Person and, without duplication, all drafts drawn thereunder (to the extent unreimbursed), (j) all preferred stock issued by such Person and required by the terms thereof to be redeemed, or for which mandatory sinking fund

10

payments are due, by a fixed date; provided that Indebtedness shall not include outstanding convertible preferred stock which carries a defined term if its conversion or redemption occurs solely through the issuance of additional equity or from the proceeds of an equity offering, (k) all obligations evidenced by take out commitments, (l) the aggregate amount of uncollected accounts receivables of such Person subject at such time to a sale of receivables (or similar transaction) regardless of whether such transaction is effected without recourse to such Person or in a manner that would not be reflected on the balance sheet of such Person in accordance with GAAP and (m) all obligations of such Person to repurchase any securities which repurchase obligation is related to the issuance thereof, including, without limitation, obligations commonly known as residual equity appreciation potential shares. Subject to the terms of Section 1.4, the Indebtedness of any Person shall include the Indebtedness of any partnership or unincorporated joint venture in which such Person is legally obligated or has a reasonable expectation of being liable with respect thereto.

"Interest Coverage Ratio" means, for any period, the ratio of (a) Adjusted NOI for such period to (b) Interest Expense for such period.

"Interest Expense" means, for any period, with respect to the Credit Parties and their Subsidiaries on a consolidated basis, all net interest expense, whether paid or accrued (including that portion applicable to Capital Leases in accordance with GAAP) plus capitalized interest.

"Interest Payment Date" means (a) as to Base Rate Loans, the last Business Day of each month and the Maturity Date, (b) as to Eurodollar Loans, the last day of the applicable Interest Period and the Maturity Date.

"Interest Period" means, as to Eurodollar Loans, a period of one, two, three or six months' duration as the Borrowers may elect, commencing, in each case, on the date of the borrowing (including continuations and conversions thereof); provided, however, (a) if any Interest Period would end on a day which is not a Business Day, such Interest Period shall be extended to the next succeeding Business Day (except that where the next succeeding Business Day falls in the next succeeding calendar month, then on the next preceding Business Day),
(b) no Interest Period shall extend beyond the Maturity Date, and (c) where an Interest Period begins on a day for which there is no numerically corresponding day in the calendar month in which the Interest Period is to end, such Interest Period shall end on the last Business Day of such calendar month.

"Investment" in any Person means (a) the acquisition (whether for cash, property, services, assumption of Indebtedness, securities or otherwise) of assets, shares of capital stock, bonds, notes, debentures, partnership, joint ventures or other ownership interests or other securities of such other Person or (b) any deposit with, or advance, loan or other extension of credit to, such Person (other than deposits made in connection with the purchase of equipment or other assets in the ordinary course of business) or (c) any other capital contribution to or investment in such Person, including, without limitation, any Guaranty Obligation (including any support for a letter of credit issued on behalf of such Person) incurred for the benefit of such Person.

11

"Joinder Agreement" means a Joinder Agreement substantially in the form of Exhibit 7.12.

"Lender" means any of the Persons identified as a "Lender" on the signature pages hereto, and any Person which may become a Lender by way of assignment in accordance with the terms hereof, together with their successors and permitted assigns.

"Leverage Ratio" means the ratio of (a) Funded Debt to (b) the sum of Annualized Capitalized Modified Adjusted NOI plus all unrestricted cash of the Combined Parties plus all Cash Equivalents of the Combined Parties plus all tenant security deposits held by the Combined Parties plus all amounts invested by the Combined Parties in construction-in-process plus all mortgage note receivables of the Combined Parties plus all net cash investments in opportunity funds of the Combined Parties.

"Lien" means any mortgage, pledge, hypothecation, assignment, deposit arrangement, security interest, encumbrance, lien (statutory or otherwise), preference, priority or charge of any kind, including, without limitation, any agreement to give any of the foregoing, any conditional sale or other title retention agreement, and any lease in the nature thereof.

"Loans" means the loans made to the Borrowers pursuant to
Section 2.1.

"London Interbank Offered Rate" means, for any Eurodollar Loan for any Interest Period therefor, the rate per annum (rounded upwards, if necessary, to the nearest 1/16 of 1%) appearing on Telerate Page 3750 (or any successor page) as the London interbank offered rate for deposits in Dollars at approximately 11:00 a.m. (London time) two Business Days prior to the first day of such Interest Period for a term comparable to such Interest Period; provided, however, if more than one rate is specified on Telerate Page 3750, the applicable rate shall be the arithmetic mean of all such rates. If for any reason such rate is not available, the term "London Interbank Offered Rate" shall mean, for any Eurodollar Loan for any Interest Period therefor, the rate per annum (rounded upwards, if necessary, to the nearest 1/16 of 1%) appearing on Reuters Screen LIBO Page as the London interbank offered rate for deposits in Dollars at approximately 11:00 a.m. (London time) two Business Days prior to the first day of such Interest Period for a term comparable to such Interest Period; provided, however, if more than one rate is specified on Reuters Screen LIBO Page, the applicable rate shall be the arithmetic mean of all such rates.

"Market Funded Debt Payments" means the scheduled debt payments that would have been due during a twelve month period with respect to the Funded Debt of the Combined Parties as of the last day of the prior fiscal quarter assuming a principal mortgage amortization of 25 years and assuming the Market Interest Rate as in effect on the date that the Market Funded Debt Payments are calculated.

12

"Market Interest Rate" means an interest rate equal to the greater of (a) the prior 30 day average of the most recent seven year U.S. Treasury Note plus 2.00% per annum or (b) 8.50% per annum.

"Material Adverse Effect" means a material adverse effect on
(a) the business, assets, operations, condition (financial or otherwise) or prospects of a Combined Party, (b) the ability of a Credit Party to perform its respective obligations under this Credit Agreement or any of the other Credit Documents, or (c) the validity or enforceability of this Credit Agreement, any of the other Credit Documents, or the rights and remedies of the Lenders hereunder or thereunder taken as a whole.

"Material Subsidiary" means a Subsidiary of a Credit Party in which such Credit Party owns, directly or indirectly, more than 65% of the capital stock, partnership interests or other equity interests.

"Maturity Date" means March 31, 1999.

"Moody's" means Moody's Investors Service, Inc., or any successor or assignee of the business of such company in the business of rating securities.

"Multiemployer Plan" means a Plan which is a multiemployer plan as defined in Sections 3(37) or 4001(a)(3) of ERISA.

"Multiple Employer Plan" means a Plan (other than a Multiemployer Plan) in which a Credit Party or any ERISA Affiliate and at least one employer other than a Credit Party or any ERISA Affiliate are contributing sponsors.

"Net Cash Proceeds" means the gross cash proceeds received from an Equity Issuance net of actual transaction costs payable to third parties.

"Net Income" means, for any period, the net income for such period of the Combined Parties, as determined in accordance with GAAP.

"Net Worth" means, as of any date, the net worth of Credit Parties and their Subsidiaries on a consolidated basis, as determined in accordance with GAAP.

"NMS" means NationsBanc Montgomery Securities LLC or any successor thereto.

"NOI" means an amount equal to (a) Net Income for such period (excluding the effect of any extraordinary or other non recurring gains or losses or other non cash losses outside the ordinary course of business) plus (b) an amount which in the determination of Net Income for such period has been deducted for (i) proceeds to minority interests, (ii) income taxes, (iii) depreciation and amortization and (iv) Interest Expense, less (c) to the extent not previously deducted in calculating Net Income for such period, the greater of (i) actual management fee expenditures of the Combined Parties or (ii) 3% of the total real estate revenue of the Combined Parties.

13

"Non-Excluded Taxes" has the meaning set forth in
Section 3.13.

"Note" or "Notes" means the promissory notes of the Borrowers in favor of each of the Lenders evidencing the Loans provided pursuant to Section 2.1, individually or collectively, as appropriate, as such promissory notes may be amended, modified, supplemented, extended, renewed or replaced from time to time and as evidenced in the form of Exhibit 2.1(g).

"Notice of Borrowing" means a request by the Borrowers for a Loan, in the form of Exhibit 2.1(b).

"Notice of Continuation/Conversion" means a request by the Borrowers to continue an existing Eurodollar Loan to a new Interest Period or to convert a Eurodollar Loan to a Base Rate Loan or to convert a Base Rate Loan to a Eurodollar Loan, in the form of Exhibit 2.1(e).

"Obligations" means, without duplication, all of the obligations of the Credit Parties to the Lenders and the Administrative Agent, whenever arising, under this Credit Agreement, the Notes, or any of the other Credit Documents to which a Credit Party is a party.

"Participation Interest" means the Extension of Credit by a Lender by way of a purchase of a participation in any Loans as provided in Section 3.8.

"PBGC" means the Pension Benefit Guaranty Corporation established pursuant to Subtitle A of Title IV of ERISA and any successor thereof.

"Permitted Investments" means Investments which are (a) cash or Cash Equivalents, (b) accounts receivable created, acquired or made in the ordinary course of business and payable or dischargeable in accordance with customary trade terms, (c) Investments by one Credit Party in another Credit Party, (d) the acquisition of new Properties; provided that the Credit Parties may not invest in undeveloped land in excess of 5% of Total Assets, in the aggregate, except for such undeveloped land that is adjacent to or contiguous with other assets being acquired or assets already owned or such land is part of a construction project approved by the Required Lenders, has all necessary local permits and approvals and construction will commence within six months of acquisition, (e) earnest money and similar deposits in respect of Properties made in the ordinary course of business, (f) Investments, as of the Effective Date, in the Subsidiaries of the Credit Parties that own the Project Bell Properties; provided that no additional Investments in such Subsidiaries may occur after the Effective Date except as permitted by clauses (g) and (h) below, (g) in addition to the Investments in clause (f) above, Investments in Subsidiaries which are not Credit Parties and Investments in joint ventures (whether or not Subsidiaries) not to exceed, in the aggregate at any one time, 15% of Adjusted Total Assets, (h) Investments not otherwise described in or covered by the other subclauses of this definition (including, without limitation, Investments in Persons that are not Subsidiaries or joint ventures (whether or not

14

Subsidiaries)), loans to officers, directors and employees and repurchases of its capital stock (including the repurchase of stock that is retired, cancelled or terminated) or other ownership interests (including options, warrants and stock appreciation rights) by a Borrower or any Subsidiary); provided that (i) such Investments do not exceed, in the aggregate at any one time, 10% of Adjusted Total Assets and (ii) such Investments, together with the Investments referred to in the previous subclause (g), do not exceed (in the aggregate at any one time) 20% of Adjusted Total Assets.

"Permitted Liens" means (a) Liens securing Obligations, (b) Liens for taxes not yet due or Liens for taxes being contested in good faith by appropriate proceedings for which adequate reserves determined in accordance with GAAP have been established (and as to which the property subject to any such Lien is not yet subject to foreclosure, sale or loss on account thereof), (c) Liens in respect of property imposed by law arising in the ordinary course of business such as materialmens', mechanics', warehousemens', carriers', landlords' and other nonconsensual statutory Liens which are not yet due and payable or which are being contested in good faith by appropriate proceedings for which adequate reserves determined in accordance with GAAP have been established (and as to which the property subject to any such Lien is not yet subject to foreclosure, sale or loss on account thereof); (d) Liens arising from good faith deposits in connection with or to secure performance of tenders, bids, leases, government contracts, performance and return-of-money bonds and other similar obligations incurred in the ordinary course of business (other than obligations in respect of the payment of borrowed money), (e) Liens arising from good faith deposits in connection with or to secure performance of statutory obligations and surety and appeal bonds, (f) easements, rights-of-way, restrictions (including zoning restrictions), matters of plat, minor defects or irregularities in title and other similar charges or encumbrances not, in any material respect, impairing the use of the encumbered property for its intended purposes, (g) judgment Liens that would not constitute an Event of Default, (h) Liens arising by virtue of any statutory or common law provision relating to bankers' liens, rights of setoff or similar rights as to deposit accounts or other funds maintained with a creditor depository institution, (i) Liens on the Properties as indicated on Schedule 8.5 if such Lien is incurred on or before March 31, 1999 (j) Liens in connection with Indebtedness permitted by Section 8.1(d); provided that if such Lien is created with respect to a Property that was previously unencumbered (other than such Liens permitted pursuant to clause (i) above), (A) the Borrowers shall give the Administrative Agent prior written notice of the creation of such Lien and (B) after giving effect to such Lien,
(x) the Credit Parties shall be in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (y) no Default or Event of Default shall exist (and the Borrowers shall deliver a certificate to that effect) and (k) Liens existing on the date hereof and identified on Schedule 8.2; provided that no such Lien shall extend to any property other than the property subject thereto on the Closing Date.

"Person" means any individual, partnership, joint venture, firm, corporation, limited liability company, association, trust or other enterprise (whether or not incorporated), or any Governmental Authority.

15

"Plan" means any employee benefit plan (as defined in
Section 3(3) of ERISA) which is covered by ERISA and with respect to which a Borrower or any ERISA Affiliate is (or, if such plan were terminated at such time, would under Section 4069 of ERISA be deemed to be) an "employer" within the meaning of Section 3(5) of ERISA.

"Prime Rate" means the per annum rate of interest established from time to time by the Administrative Agent at its principal office in Charlotte, North Carolina (or such other principal office of the Administrative Agent as communicated in writing to the Borrowers and the Lenders) as its Prime Rate. Any change in the interest rate resulting from a change in the Prime Rate shall become effective as of 12:01 a.m. of the Business Day on which each change in the Prime Rate is announced by the Administrative Agent. The Prime Rate is a reference rate used by the Administrative Agent in determining interest rates on certain loans and is not intended to be the lowest rate of interest charged on any extension of credit to any debtor.

"Pro Forma Basis" means with respect to (a) the sale of a Property or the sale of an equity interest in a Credit Party or (b) the creation of a Lien on a Property, that such sale or creation of Lien shall be deemed to have occurred as of the first day of the four fiscal quarter period ending as of the last day of the most recent fiscal quarter for which the Lenders have received the financial information required by Section 7.1(b).

"Project Bell Properties" means the Properties set forth on Schedule 1.1(b).

"Properties" means all real properties owned by the Credit Parties and their Subsidiaries whether directly or through a joint venture investment.

"Regulation D, U, or X" means Regulation D, U or X, respectively, of the Board of Governors of the Federal Reserve System as from time to time in effect and any successor to all or a portion thereof.

"REIT" means a real estate investment trust as defined in Sections 856-860 of the Code.

"Reportable Event" means any of the events set forth in
Section 4043(c) of ERISA, other than those events as to which the notice requirement has been waived by regulation.

"Required Lenders" means the Administrative Agent together with the Lenders whose aggregate Credit Exposure (as hereinafter defined) constitutes at least 66 2/3% of the Credit Exposure of all Lenders at such time; provided, however, that if any Lender shall be a Defaulting Lender at such time then there shall be excluded from the determination of Required Lenders the aggregate principal amount of Credit Exposure of such Lender at such time. For purposes of the preceding sentence, the term "Credit Exposure" as applied to each Lender shall mean (a) at any time prior to the termination of the Commitments, the sum of the Commitment Percentage of such Lender multiplied by the Committed Amount and (b) at any time after the termination of the Commitments, the sum of the principal balance of the outstanding Loans of such Lender.

16

"Requirement of Law" means, as to any Person, the articles or certificate of incorporation and by-laws or other organizational or governing documents of such Person, and any law, treaty, rule or regulation or final, non-appealable determination of an arbitrator or a court or other Governmental Authority, in each case applicable to or binding upon such Person or to which any of its material property is subject.

"S&P" means Standard & Poor's Ratings Group, a division of McGraw Hill, Inc., or any successor or assignee of the business of such division in the business of rating securities.

"Secured Debt" means all Funded Debt of the Combined Parties that is subject to a Lien in favor of the creditor holding such Funded Debt; provided that any Funded Debt owed to the Lenders hereunder shall be considered to be Unsecured Debt even if a Lien has been granted in favor of the Lenders.

"Secured Debt Ratio" means the ratio of (a) Secured Debt to
(b) Annualized Capitalized Modified Adjusted NOI plus, to the extent Secured Debt includes Funded Debt on construction-in-process, total construction costs with respect to such construction-in-process.

"Securities Act" means the Securities Act of 1933, as amended, modified, succeeded or replaced from time to time, and the rules and regulations promulgated thereunder.

"Senior Credit Agreement" means that certain Second Amended and Restated Credit Agreement, dated as of the date hereof, among the Borrowers, the Guarantors, NationsBank, N.A., as Administrative Agent, and the lenders party thereto.

"Single Employer Plan" means any Plan which is covered by Title IV of ERISA, but which is not a Multiemployer Plan or a Multiple Employer Plan.

"Solvent" means, with respect to any Person as of a particular date, that on such date (a) such Person is able to pay its debts and other liabilities, contingent obligations and other commitments as they mature in the normal course of business, (b) such Person does not intend to, and does not believe that it will, incur debts or liabilities beyond such Person's ability to pay as such debts and liabilities mature in their ordinary course, (c) such Person is not engaged in a business or a transaction, and is not about to engage in a business or a transaction, for which such Person's assets would constitute unreasonably small capital after giving due consideration to the prevailing practice in the industry in which such Person is engaged or is to engage, (d) the fair value of the assets of such Person is greater than the total amount of liabilities, including, without limitation, contingent liabilities, of such Person and (e) the present fair saleable value of the assets of such Person is not less than the amount that will be required to pay the probable liability of such Person on its debts as they become absolute and matured. In computing the amount of contingent liabilities at any time, it is intended that such liabilities will be computed at the amount which, in light of all

17

the facts and circumstances existing at such time, represents the amount that can reasonably be expected to become an actual or matured liability.

"Subsidiary" means, as to any Person, (a) any corporation more than 50% of whose stock of any class or classes having by the terms thereof ordinary voting power to elect a majority of the directors of such corporation (irrespective of whether or not at the time, any class or classes of such corporation shall have or might have voting power by reason of the happening of any contingency) is at the time owned by such Person directly or indirectly through Subsidiaries, and (b) any partnership, association, joint venture, limited liability company, trust or other entity in which such Person directly or indirectly through Subsidiaries has more than a 50% equity interest at any time.

"Termination Event" means (a) with respect to any Single Employer Plan, the occurrence of a Reportable Event or the substantial cessation of operations (within the meaning of Section 4062(e) of ERISA); (b) the withdrawal of any Credit Party or any of its Subsidiaries or any ERISA Affiliate from a Multiple Employer Plan during a plan year in which it was a substantial employer (as such term is defined in Section 4001(a)(2) of ERISA), or the termination of a Multiple Employer Plan; (c) the distribution of a notice of intent to terminate or the actual termination of a Plan pursuant to
Section 4041(a)(2) or 4041A of ERISA; (d) the institution of proceedings to terminate or the actual termination of a Plan by the PBGC under Section 4042 of ERISA; (e) any event or condition which might reasonably constitute grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan; or (f) the complete or partial withdrawal of any Credit Party or any of its Subsidiaries or any ERISA Affiliate from a Multiemployer Plan.

"Total Assets" means all assets of the Credit Parties and their Subsidiaries on a consolidated basis, as determined in accordance with GAAP.

"Unencumbered Cash Flow Ratio" means the ratio of (a) Annualized Modified Adjusted NOI with respect to Unsecured Properties to (b) Market Funded Debt Payments on Unsecured Debt.

"Unsecured Debt" means the sum of all Funded Debt of the Combined Parties that was incurred, and continues to be outstanding, without granting a Lien to the creditor holding such Funded Debt; provided that all Funded Debt of the Combined Parties owing to the Lenders under this Credit Agreement shall be considered to be Unsecured Debt even if a Lien has been granted in favor of the Lenders.

"Unsecured Debt Ratio" means the ratio of (a) Annualized Capitalized Modified Adjusted NOI with respect to all Unsecured Properties to (b) Unsecured Debt.

"Unsecured Properties" means all Properties that are not subject to a Lien other than nonconsensual Permitted Liens and (b) Liens in favor of the Lenders.

18

"Year 2000 Problem" means any risk that any computer hardware, software or other equipment used by a Credit Party or any of its Subsidiaries (or by any of its suppliers or vendors that is material to its business) will not function as effectively and reliably on and after January 1, 2000 as it does prior to January 1, 2000, to the extent such risk would cause or be reasonably expected to cause a Material Adverse Effect.

1.2 Computation of Time Periods and Other Definition Provisions.

For purposes of computation of periods of time hereunder, the word "from" means "from and including" and the words "to" and "until" each mean "to but excluding." References in this Credit Agreement to "Articles", "Sections", "Schedules" or "Exhibits" shall be to Articles, Sections, Schedules or Exhibits of or to this Credit Agreement unless otherwise specifically provided.

1.3 Accounting Terms.

Except as otherwise expressly provided herein, all accounting terms used herein shall be interpreted, and all financial statements and certificates and reports as to financial matters required to be delivered to the Lenders hereunder shall be prepared, in accordance with GAAP applied on a consistent basis. All financial statements delivered to the Lenders hereunder shall be accompanied by a statement from the Borrowers that GAAP has not changed since the most recent financial statements delivered by the Borrowers to the Lenders or if GAAP has changed describing such changes in detail and explaining how such changes affect the financial statements. All calculations made for the purposes of determining compliance with this Credit Agreement shall (except as otherwise expressly provided herein) be made by application of GAAP applied on a basis consistent with the most recent annual or quarterly financial statements delivered pursuant to Section 7.1 (or, prior to the delivery of the first financial statements pursuant to Section 7.1, consistent with the financial statements described in Section 5.1(f)); provided, however, if (a) the Borrowers shall object to determining such compliance on such basis at the time of delivery of such financial statements due to any change in GAAP or the rules promulgated with respect thereto or (b) the Administrative Agent or the Required Lenders shall so object in writing within 60 days after delivery of such financial statements (or after the Lenders have been informed of the change in GAAP affecting such financial statements, if later), then such calculations shall be made on a basis consistent with the most recent financial statements delivered by the Borrowers to the Lenders as to which no such objection shall have been made.

1.4 Joint Venture Investments.

With respect to any ownership of a Property by a Credit Party or one of its Subsidiaries through a joint venture (a) NOI, Adjusted NOI, Annualized Adjusted NOI, Annualized Capitalized Adjusted NOI, Annualized Modified Adjusted NOI and Annualized Capitalized Modified Adjusted NOI shall be calculated in accordance with such Credit Party's (or Subsidiary's) ownership interest in the net cash flow of such joint venture and (b) Indebtedness and Funded Debt shall be calculated as follows: (i) if the Indebtedness of such joint venture is recourse to such Credit Party (or Subsidiary), then the amount of such Indebtedness or Funded Debt that is recourse to such Credit Party (or Subsidiary), and (ii) if the Indebtedness of such joint venture is not recourse to such Credit Party (or Subsidiary), then such Credit Party's (or Subsidiary's) pro rata interest in such Indebtedness or Funded Debt.

19

SECTION 2

CREDIT FACILITY

2.1 Loans.

(a) Loan Commitment. Subject to the terms and conditions set forth herein, each Lender severally agrees to make loans (each a "Loan" and collectively the "Loans") to the Borrowers, in Dollars, at any time and from time to time, during the period from and including the Effective Date to but not including the Maturity Date or such earlier date if the Committed Amount has been terminated as provided herein; provided, however, that (i) the sum of the aggregate principal amount of Loans advanced hereunder shall not exceed the Committed Amount and (ii) with respect to each individual Lender, the Lender's pro rata share of outstanding Loans shall not exceed such Lender's Commitment Percentage of the Committed Amount.

(b) Method of Borrowing for Loans. By no later than 11:00
a.m. (i) one Business Day prior to the date of the requested borrowing of Loans that will be Base Rate Loans or (ii) three Business Days prior to the date of the requested borrowing of Loans that will be Eurodollar Loans, the Borrowers shall submit an irrevocable written Notice of Borrowing in the form of Exhibit 2.1(b) to the Administrative Agent setting forth (A) the amount requested, (B) whether such Loans shall be Base Rate Loans or Eurodollar Loans,
(C) with respect to Loans that will be Eurodollar Loans, the Interest Period applicable thereto; provided, however, that prior to December 31, 1998, or such earlier date as agreed to by the Administrative Agent, the Borrowers may not, without the consent of the Administrative Agent, request any Interest Period for Eurodollar Loans other than a one-month Interest Period, (D) the purpose of the proceeds of the Loans and (E) certification that the Borrowers have complied in all respects with Section 5.2.

(c) Funding of Loans. Upon receipt of a Notice of Borrowing, the Administrative Agent shall promptly inform the Lenders as to the terms thereof. Each Lender shall make its Loan Commitment Percentage of the requested Loans available to the Administrative Agent by 1:00
p.m. on the date specified in the Notice of Borrowing by deposit, in Dollars, of immediately available funds at the offices of the Administrative Agent at its principal office in Charlotte, North Carolina or at such other address as the Administrative Agent may designate in writing. The amount of the requested Loans will then be made available to the Borrowers by the Administrative Agent by crediting the account of the Borrowers on the books of such office of the Administrative Agent, to the extent the amount of such Loans are made available to the Administrative Agent.

No Lender shall be responsible for the failure or delay by any other Lender in its obligation to make Loans hereunder; provided, however, that the failure of any Lender to

20

fulfill its obligations hereunder shall not relieve any other Lender of its obligations hereunder. Unless the Administrative Agent shall have been notified by any Lender prior to the date of any such Loan that such Lender does not intend to make available to the Administrative Agent its portion of the Loans to be made on such date, the Administrative Agent may assume that such Lender has made such amount available to the Administrative Agent on the date of such Loans, and the Administrative Agent in reliance upon such assumption, may (in its sole discretion but without any obligation to do so) make available to the Borrowers a corresponding amount. If such corresponding amount is not in fact made available to the Administrative Agent, the Administrative Agent shall be able to recover such corresponding amount from such Lender. If such Lender does not pay such corresponding amount forthwith upon the Administrative Agent's demand therefor, the Administrative Agent will promptly notify the Borrowers, and the Borrowers shall immediately pay such corresponding amount to the Administrative Agent. The Administrative Agent shall also be entitled to recover from the Lender or the Borrowers, as the case may be, interest on such corresponding amount in respect of each day from the date such corresponding amount was made available by the Administrative Agent to the Borrowers to the date such corresponding amount is recovered by the Administrative Agent at a per annum rate equal to (i) from the Borrowers at the applicable rate for such Loan pursuant to the Notice of Borrowing and (ii) from a Lender at the Federal Funds Rate.

(d) [Intentionally Omitted]

(e) Continuations and Conversions. The Borrowers shall have the option, on any Business Day, to continue existing Eurodollar Loans for a subsequent Interest Period, to convert Base Rate Loans into Eurodollar Loans, or to convert Eurodollar Loans into Base Rate Loans; provided, however, that (i) each such continuation or conversion must be requested by the Borrowers pursuant to a written Notice of Continuation/Conversion, in the form of Exhibit 2.1(e), in compliance with the terms set forth below, (ii) except as provided in
Section 3.11, Eurodollar Loans may only be continued or converted on the last day of the Interest Period applicable thereto, (iii) Eurodollar Loans may not be continued nor may Base Rate Loans be converted into Eurodollar Loans during the existence and continuation of a Default or Event of Default and (iv) any request to continue a Eurodollar Loan that fails to comply with the terms hereof or any failure to request a continuation of a Eurodollar Loan at the end of an Interest Period shall result in a conversion of such Eurodollar Loan to a Base Rate Loan on the last day of the applicable Interest Period. Each continuation or conversion must be requested by the Borrowers no later than 11:00 a.m. (A) one Business Day prior to the date for a requested conversion of a Eurodollar Loan to a Base Rate Loan or (B) three Business Days prior to the date for a requested continuation of a Eurodollar Loan or conversion of a Base Rate Loan to a Eurodollar Loan, in each case pursuant to a written Notice of Continuation/Conversion submitted to the Administrative Agent which shall set forth (x) whether the Borrowers wish to continue or convert such Loans and (y) if the request is to continue a Eurodollar Loan or convert a Loan to a Eurodollar Loan, the Interest Period applicable thereto; provided that prior to December 31, 1998, the Borrowers may not, without the consent of the Administrative Agent, request any Interest Period for Eurodollar Loans other than a one-month Interest Period.

21

(f) Minimum Amounts/Restrictions on Loans. Each request for a borrowing, conversion or continuation shall be subject to the requirements that (i) each Eurodollar Loan shall be in a minimum amount of $1,000,000 and in integral multiples of $100,000 in excess thereof, (ii) each Base Rate Loan shall be in a minimum amount of $500,000 (and integral multiples of $100,000 in excess thereof) or the remaining amount available under the Committed Amount, (iii) no more than six Loans shall be made during any one month and (iv) no more than eight Eurodollar Loans shall be outstanding at any one time. For the purposes of this Section, all Eurodollar Loans with the same Interest Periods beginning on the same date shall be considered as one Eurodollar Loan, but Eurodollar Loans with different Interest Periods, even if they begin on the same date, shall be considered as separate Eurodollar Loans.

(g) Notes. The Loans made by each Lender shall be evidenced by a duly executed promissory note of the Borrowers to each Lender in the face amount of its Loan Commitment Percentage of the Committed Amount in substantially the form of Exhibit 2.1(g).

2.2 [Intentionally Omitted]

2.3 Joint and Several Liability of the Borrowers.

(a) Each of the Borrowers is accepting joint and several liability hereunder in consideration of the financial accommodation to be provided by the Lenders under this Credit Agreement, for the mutual benefit, directly and indirectly, of each of the Borrowers and in consideration of the undertakings of each of the Borrowers to accept joint and several liability for the obligations of each of them.

(b) Each of the Borrowers jointly and severally hereby irrevocably and unconditionally accepts, not merely as a surety but also as a co-debtor, joint and several liability with the other Borrowers with respect to the payment and performance of all of the Obligations arising under this Credit Agreement and the other Credit Documents, it being the intention of the parties hereto that all the Obligations shall be the joint and several obligations of each of the Borrowers without preferences or distinction among them.

(c) If and to the extent that any of the Borrowers shall fail to make any payment with respect to any of the obligations hereunder as and when due or to perform any of such obligations in accordance with the terms thereof, then in each such event, the other Borrowers will make such payment with respect to, or perform, such obligation.

(d) The obligations of each Borrower under the provisions of this Section 2.3 constitute full recourse obligations of such Borrower, enforceable against it to the full extent of its properties and assets.

(e) Except as otherwise expressly provided herein, to the extent permitted by law, each Borrower hereby waives notice of acceptance of its joint and several liability,

22

notice of occurrence of any Default or Event of Default (except to the extent notice is expressly required to be given pursuant to the terms of this Credit Agreement), or of any demand for any payment under this Credit Agreement, notice of any action at any time taken or omitted by the Administrative Agent or the Lenders under or in respect of any of the Obligations hereunder, any requirement of diligence and, generally, all demands, notices and other formalities of every kind in connection with this Credit Agreement. Each Borrower hereby assents to, and waives notice of, any extension or postponement of the time for the payment of any of the Obligations hereunder, the acceptance of any partial payment thereon, any waiver, consent or other action or acquiescence by the Administrative Agent or the Lenders at any time or times in respect of any default by any Borrower in the performance or satisfaction of any term, covenant, condition or provision of this Credit Agreement, any and all other indulgences whatsoever by the Administrative Agent or the Lenders in respect of any of the Obligations hereunder, and the taking, addition, substitution or release, in whole or in part, at any time or times, of any security for any of such Obligations or the addition, substitution or release, in whole or in part, of any Borrower. Without limiting the generality of the foregoing, each Borrower assents to any other action or delay in acting or any failure to act on the part of the Administrative Agent or the Lenders, including, without limitation, any failure strictly or diligently to assert any right or to pursue any remedy or to comply fully with applicable laws or regulations thereunder which might, but for the provisions of this Section 2.3, afford grounds for terminating, discharging or relieving such Borrower, in whole or in part, from any of its obligations under this Section 2.3, it being the intention of each Borrower that, so long as any of the Obligations hereunder remain unsatisfied, the obligations of such Borrower under this Section 2.3 shall not be discharged except by performance and then only to the extent of such performance. The obligations of each Borrower under this Section 2.3 shall not be diminished or rendered unenforceable by any winding up, reorganization, arrangement, liquidation, reconstruction or similar proceeding with respect to any reconstruction or similar proceeding with respect to any Borrower or a Lender. The joint and several liability of the Borrowers hereunder shall continue in full force and effect notwithstanding any absorption, merger, amalgamation or any other change whatsoever in the name, membership, constitution or place of formation of any Borrower or any of the Lenders.

(f) The provisions of this Section 2.3 are made for the benefit of the Lenders and their successors and assigns, and may be enforced by them from time to time against any of the Borrowers as often as occasion therefor may arise and without requirement on the part of the Lenders first to marshall any of its claims or to exercise any of its rights against the other Borrower or to exhaust any remedies available to it against the other Borrower or to resort to any other source or means of obtaining payment of any of the Obligations hereunder or to elect any other remedy. The provisions of this Section 2.3 shall remain in effect until all the Obligations hereunder shall have been paid in full or otherwise fully satisfied. If at any time, any payment, or any part thereof, made in respect of any of the Obligations, is rescinded or must otherwise be restored or returned by the Lenders upon the insolvency, bankruptcy or reorganization of any of the Borrowers, or otherwise, the provisions of this Section 2.3 will forthwith be reinstated and in effect as though such payment had not been made.

23

(g) Notwithstanding any provision to the contrary contained herein or in any of the other Credit Documents, to the extent the obligations of any Borrower shall be adjudicated to be invalid or unenforceable for any reason (including, without limitation, because of any applicable state or federal law relating to fraudulent conveyances or transfers) then the obligations of such Borrower hereunder shall be limited to the maximum amount that is permissible under applicable law (whether federal or state and including, without limitation, the Bankruptcy Code).

2.4 Appointment of BOP.

BRT hereby appoints BOP to act as its agent for all purposes under this Credit Agreement (including, without limitation, with respect to all matters related to the borrowing and repayment of Loans) and agrees that (i) BOP may execute such documents on behalf of BRT as BOP deems appropriate in its sole discretion and BRT shall be obligated by all of the terms of any such document executed on its behalf, (ii) any notice or communication delivered by the Administrative Agent or the Lender to BOP shall be deemed delivered to BRT and (iii) the Administrative Agent or the Lender may accept, and be permitted to rely on, any document, instrument or agreement executed by BOP on behalf of BRT.

2.5 Non-Recourse.

Notwithstanding anything herein to the contrary, no recourse shall be had against Brandywine Realty Services Partnership or any past, present or future shareholder, officer, director or trustee of BRT for any obligation of the Credit Parties under the Credit Documents, or for any claim based thereon or otherwise in respect thereof; provided, however, that this Section 2.5 shall not restrict or limit any claim against any such Person arising out of or occurring with respect to fraud or any intentional misrepresentation or any act or omission that is willful or wanton or constitutes gross negligence or willful misconduct.

SECTION 3

GENERAL PROVISIONS APPLICABLE TO LOANS AND LETTERS OF CREDIT

3.1 Interest.

(a) Interest Rate. All Base Rate Loans shall accrue interest at the Adjusted Base Rate. All Eurodollar Loans shall accrue interest at the Adjusted Eurodollar Rate.

(b) Default Rate of Interest. Upon the occurrence, and during the continuance, of an Event of Default, the principal of and, to the extent permitted by law, interest on the Loans and any other amounts owing hereunder or under the other Credit Documents (including without limitation fees and expenses) shall bear interest, payable on demand, at a per annum rate equal to four percent

24

(4%) plus the rate which would otherwise be applicable (or if no rate is applicable, then the rate for Base Rate Loans plus four percent (4%) per annum); provided that unless the Loans have been accelerated, interest, including the default rate of interest, shall only be due and payable on the Interest Payment Dates.

(c) Interest Payments. Interest on Loans shall be due and payable in arrears on each Interest Payment Date. If an Interest Payment Date falls on a date which is not a Business Day, such Interest Payment Date shall be deemed to be the succeeding Business Day, except that in the case of Eurodollar Loans where the succeeding Business Day falls in the succeeding calendar month, then on the preceding Business Day.

3.2 Place and Manner of Payments.

All payments of principal, interest, fees, expenses and other amounts to be made by a Borrower under this Agreement shall be received not later than 2:00 p.m. on the date when due, in Dollars and in immediately available funds, by the Administrative Agent at its offices in Charlotte, North Carolina or the Issuing Lender at its applicable address. Payments received after such time shall be deemed to have been received on the next Business Day. The Borrowers shall, at the time it makes any payment under this Agreement, specify to the Administrative Agent or Issuing Lender, as applicable, the Loans, Letters of Credit, fees or other amounts payable by the Borrowers hereunder to which such payment is to be applied (and in the event that it fails to specify, or if such application would be inconsistent with the terms hereof, the Administrative Agent shall, subject to Section 3.7, distribute such payment to the Lenders in such manner as the Administrative Agent may deem appropriate). The Administrative Agent will distribute any such payment to the Lenders on the day received if such payment is received prior to 2:00 p.m.; otherwise the Administrative Agent will distribute such payment to the Lenders on the next succeeding Business Day. Whenever any payment hereunder shall be stated to be due on a day which is not a Business Day, the due date thereof shall be extended to the next succeeding Business Day (subject to accrual of interest and fees for the period of such extension), except that in the case of Eurodollar Loans, if the extension would cause the payment to be made in the next following calendar month, then such payment shall instead be made on the next preceding Business Day.

3.3 Voluntary Prepayments.

The Borrowers shall have the right to prepay Loans in whole or in part from time to time without premium or penalty; provided, however, that (a) Eurodollar Loans may only be prepaid on three Business Days' prior written notice to the Administrative Agent and any prepayment of Eurodollar Loans will be subject to Section 3.14 and (b) each such partial prepayment of Loans shall be in the minimum principal amount of $1,000,000 and integral multiples of $100,000 in excess thereof.

3.4 Fees.

The Borrowers agree to timely pay to the Administrative Agent the fees as set forth in the Additional Fee Letter.

25

3.5 Payment in full at Maturity.

On the Maturity Date, the entire outstanding principal balance of all Loans, together with accrued but unpaid interest and all other sums owing with respect thereto, shall be due and payable in full, unless accelerated sooner pursuant to Section 9.2.

3.6 Computations of Interest and Fees.

(a) Except for Base Rate Loans which shall be calculated on the basis of a 365 or 366 day year as the case may be, all computations of interest and fees hereunder shall be made on the basis of the actual number of days elapsed over a year of 360 days. Interest shall accrue from and include the date of borrowing (or continuation or conversion) but exclude the date of payment.

(b) It is the intent of the Lenders and the Credit Parties to conform to and contract in strict compliance with applicable usury law from time to time in effect. All agreements between the Lenders and the Credit Parties are hereby limited by the provisions of this paragraph which shall override and control all such agreements, whether now existing or hereafter arising and whether written or oral. In no way, nor in any event or contingency (including but not limited to prepayment or acceleration of the maturity of any obligation), shall the interest taken, reserved, contracted for, charged, or received under this Credit Agreement, under the Notes or otherwise, exceed the maximum nonusurious amount permissible under applicable law. If, from any possible construction of any of the Credit Documents or any other document, interest would otherwise be payable in excess of the maximum nonusurious amount, any such construction shall be subject to the provisions of this paragraph and such interest shall be automatically reduced to the maximum nonusurious amount permitted under applicable law, without the necessity of execution of any amendment or new document. If any Lender shall ever receive anything of value which is characterized as interest on the Loans under applicable law and which would, apart from this provision, be in excess of the maximum lawful amount, an amount equal to the amount which would have been excessive interest shall, without penalty, be applied to the reduction of the principal amount owing on the Loans and not to the payment of interest, or refunded to the Credit Parties or the other payor thereof if and to the extent such amount which would have been excessive exceeds such unpaid principal amount of the Loans. The right to demand payment of the Loans or any other indebtedness evidenced by any of the Credit Documents does not include the right to receive any interest which has not otherwise accrued on the date of such demand, and the Lenders do not intend to charge or receive any unearned interest in the event of such demand. All interest paid or agreed to be paid to the Lenders with respect to the Loans shall, to the extent permitted by applicable law, be amortized, prorated, allocated, and spread throughout the full stated term (including any renewal or extension) of the Loans so that the amount of interest on account of such indebtedness does not exceed the maximum nonusurious amount permitted by applicable law.

26

3.7 Pro Rata Treatment.

Each Loan borrowing, each payment or prepayment of principal of any Loan, and each conversion or continuation of any Loan, shall (except as otherwise provided in Section 3.11) be allocated pro rata among the Lenders in accordance with the respective Commitment Percentages of such Lenders (or, if the Commitments of such Lenders have expired or been terminated, in accordance with the respective principal amounts of the outstanding Loans and Participation Interests of such Lenders); provided that, if any Lender shall have failed to pay its applicable pro rata share of any Loan, then any amount to which such Lender would otherwise be entitled pursuant to this Section 3.7 shall instead be payable to the Administrative Agent until the share of such Loan not funded by such Lender has been repaid; provided further, that in the event any amount paid to any Lender pursuant to this Section 3.7 is rescinded or must otherwise be returned by the Administrative Agent, each Lender shall, upon the request of the Administrative Agent, repay to the Administrative Agent the amount so paid to such Lender, with interest for the period commencing on the date such payment is returned by the Administrative Agent until the date the Administrative Agent receives such repayment at a rate per annum equal to, during the period to but excluding the date two Business Days after such request, the Federal Funds Rate, and thereafter, at the Base Rate plus two percent (2%) per annum.

3.8 Sharing of Payments.

The Lenders agree among themselves that, except to the extent otherwise provided herein, in the event that any Lender shall obtain payment in respect of any Loan or any other obligation owing to such Lender under this Credit Agreement through the exercise of a right of setoff, banker's lien or counterclaim, or pursuant to a secured claim under Section 506 of the Bankruptcy Code or other security or interest arising from, or in lieu of, such secured claim, received by such Lender under any applicable bankruptcy, insolvency or other similar law or otherwise, or by any other means, in excess of its pro rata share of such payment as provided for in this Credit Agreement, such Lender shall promptly pay in cash or purchase from the other Lenders a participation in such Loans and other obligations in such amounts, and make such other adjustments from time to time, as shall be equitable to the end that all Lenders share such payment in accordance with their respective ratable shares as provided for in this Credit Agreement. The Lenders further agree among themselves that if payment to a Lender obtained by such Lender through the exercise of a right of setoff, banker's lien, counterclaim or other event as aforesaid shall be rescinded or must otherwise be restored, each Lender which shall have shared the benefit of such payment shall, by payment in cash or a repurchase of a participation theretofore sold, return its share of that benefit (together with its share of any accrued interest payable with respect thereto) to each Lender whose payment shall have been rescinded or otherwise restored. The Credit Parties agree that any Lender so purchasing such a participation may, to the fullest extent permitted by law, exercise all rights of payment, including setoff, banker's lien or counterclaim, with respect to such participation as fully as if such Lender were a holder of such Loan or other obligation in the amount of such participation. Except as otherwise expressly provided in this Credit Agreement, if any Lender shall fail to remit to the Administrative Agent or any other Lender an amount payable by such Lender to the Administrative Agent or such other Lender pursuant to this Credit Agreement on the date when such amount is due, such payments shall be made together with interest thereon for each date from the date such amount is due until the date such amount is paid to the Administrative Agent or such

27

other Lender at a rate per annum equal to the Federal Funds Rate. If under any applicable bankruptcy, insolvency or other similar law, any Lender receives a secured claim in lieu of a setoff to which this Section 3.8 applies, such Lender shall, to the extent practicable, exercise its rights in respect of such secured claim in a manner consistent with the rights of the Lenders under this Section 3.8 to share in the benefits of any recovery on such secured claim.

3.9 Capital Adequacy.

If, after the date hereof, any Lender has determined that the adoption or the becoming effective of, or any change in, or any change by any Governmental Authority, central bank or comparable agency charged with the interpretation or administration thereof in the interpretation or administration of, any applicable law, rule or regulation regarding capital adequacy, or compliance by such Lender, or its parent corporation, with any request or directive regarding capital adequacy (whether or not having the force of law) of any such authority, central bank or comparable agency, has or would have the effect of reducing the rate of return on such Lender's (or parent corporation's) capital or assets as a consequence of its commitments or obligations hereunder to a level below that which such Lender, or its parent corporation, could have achieved but for such adoption, effectiveness, change or compliance (taking into consideration such Lender's (or parent corporation's) policies with respect to capital adequacy), then, upon notice from such Lender to the Borrowers and the Administrative Agent, the Borrowers shall be obligated to pay to such Lender such additional amount or amounts as will compensate such Lender on an after-tax basis (after taking into account applicable deductions and credits in respect of the amount indemnified) for such reduction. Each determination by any such Lender of amounts owing under this Section shall, absent manifest error, be conclusive and binding on the parties hereto. This covenant shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

3.10 Inability To Determine Interest Rate.

If prior to the first day of any Interest Period, the Administrative Agent shall have determined in good faith (which determination shall be conclusive and binding upon the Borrowers) that, by reason of circumstances affecting the relevant market, adequate and reasonable means do not exist for ascertaining the Adjusted Eurodollar Rate for such Interest Period, the Administrative Agent shall give telecopy or telephonic notice thereof to the Borrowers and the Lenders as soon as practicable thereafter, and will also give prompt written notice to the Borrowers when such conditions no longer exist. If such notice is given (a) any Eurodollar Loans requested to be made on the first day of such Interest Period shall be made as Base Rate Loans and
(b) any Loans that were to have been converted on the first day of such Interest Period to or continued as Eurodollar Loans shall be converted to or continued as Base Rate Loans. Until such notice has been withdrawn by the Administrative Agent, no further Eurodollar Loans shall be made or continued as such, nor shall the Borrowers have the right to convert Base Rate Loans to Eurodollar Loans.

28

3.11 Illegality.

Notwithstanding any other provision herein, if the adoption of or any change in any Requirement of Law or in the interpretation or application thereof occurring after the Closing Date shall make it unlawful for any Lender to make or maintain Eurodollar Loans as contemplated by this Credit Agreement,
(a) such Lender shall promptly give written notice of such circumstances to the Borrowers and the Administrative Agent (which notice shall be promptly withdrawn whenever such circumstances no longer exist), (b) the commitment of such Lender hereunder to make Eurodollar Loans, continue Eurodollar Loans as such and convert a Base Rate Loan to Eurodollar Loans shall forthwith be canceled and, until such time as it shall no longer be unlawful for such Lender to make or maintain Eurodollar Loans, such Lender shall then have a commitment only to make a Base Rate Loan when a Eurodollar Loan is requested and (c) such Lender's Loans then outstanding as Eurodollar Loans, if any, shall be converted automatically to Base Rate Loans on the respective last days of the then current Interest Periods with respect to such Loans or within such earlier period as required by law. If any such conversion of a Eurodollar Loan occurs on a day which is not the last day of the then current Interest Period with respect thereto, the Borrowers shall pay to such Lender such amounts, if any, as may be required pursuant to Section 3.14; provided that no such payments shall be required if the conversion of a Eurodollar Loan occurs within 30 days of the last day of the Interest Period of such Eurodollar Loan.

3.12 Requirements of Law.

If the adoption of or any change in any Requirement of Law or in the interpretation or application thereof applicable to any Lender, or compliance by any Lender with any request or directive (whether or not having the force of law) from any central bank or other Governmental Authority, in each case made subsequent to the Closing Date (or, if later, the date on which such Lender becomes a Lender):

(a) shall subject such Lender to any tax of any kind whatsoever with respect to any Eurodollar Loans made by it or its obligation to make Eurodollar Loans, or change the basis of taxation of payments to such Lender in respect thereof (except for Non-Excluded Taxes covered by Section 3.13 (including Non-Excluded Taxes imposed solely by reason of any failure of such Lender to comply with its obligations under Section 3.13(b)) and changes in taxes measured by or imposed upon the overall net income, or franchise tax (imposed in lieu of such net income tax), of such Lender or its applicable lending office, branch, or any affiliate thereof);

(b) shall impose, modify or hold applicable any reserve, special deposit, compulsory loan or similar requirement against assets held by, deposits or other liabilities in or for the account of, advances, loans or other extensions of credit by, or any other acquisition of funds by, any office of such Lender which is not otherwise included in the determination of the Adjusted Eurodollar Rate hereunder; or

(c) shall impose on such Lender any other condition (excluding any tax of any kind whatsoever);

29

and the result of any of the foregoing is to increase the cost to such Lender, by an amount which such Lender deems to be material, of making, converting into, continuing or maintaining Eurodollar Loans or issuing or participating in Letters of Credit or to reduce any amount receivable hereunder in respect thereof, then, in any such case, upon notice to the Borrowers from such Lender, through the Administrative Agent, in accordance herewith, the Borrowers shall be obligated to promptly pay such Lender, upon its demand, any additional amounts necessary to compensate such Lender on an after-tax basis (after taking into account applicable deductions and credits in respect of the amount indemnified) for such increased cost or reduced amount receivable, provided that, in any such case, the Borrowers may elect to convert the Eurodollar Loans made by such Lender hereunder to Base Rate Loans by giving the Administrative Agent at least one Business Day's notice of such election, in which case the Borrowers shall promptly pay to such Lender, upon demand, without duplication, such amounts, if any, as may be required pursuant to
Section 3.14. If any Lender becomes entitled to claim any additional amounts pursuant to this Section 3.12, it shall provide prompt notice thereof to the Borrowers, through the Administrative Agent, certifying (x) that one of the events described in this Section 3.12 has occurred and describing in reasonable detail the nature of such event, (y) as to the increased cost or reduced amount resulting from such event and (z) as to the additional amount demanded by such Lender and a reasonably detailed explanation of the calculation thereof. Such a certificate as to any additional amounts payable pursuant to this Section 3.12 submitted by such Lender, through the Administrative Agent, to the Borrowers shall be conclusive and binding on the parties hereto in the absence of manifest error. This covenant shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

3.13 Taxes.

(a) Except as provided below in this Section 3.13, all payments made by the Borrowers under this Credit Agreement and any Notes shall be made free and clear of, and without deduction or withholding for or on account of, any present or future income, stamp or other taxes, levies, imposts, duties, charges, fees, deductions or withholdings, now or hereafter imposed, levied, collected, withheld or assessed by any court, or governmental body, agency or other official, excluding taxes measured by or imposed upon the overall net income of any Lender or its applicable lending office, or any branch or affiliate thereof, and all franchise taxes, branch taxes, taxes on doing business or taxes on the overall capital or net worth of any Lender or its applicable lending office, or any branch or affiliate thereof, in each case imposed in lieu of net income taxes: (i) by the jurisdiction under the laws of which such Lender, applicable lending office, branch or affiliate is organized or is located, or in which its principal executive office is located, or any nation within which such jurisdiction is located or any political subdivision thereof; or
(ii) by reason of any connection between the jurisdiction imposing such tax and such Lender, applicable lending office, branch or affiliate other than a connection arising solely from such Lender having executed, delivered or performed its obligations, or received payment under or enforced, this Credit Agreement or any Notes. If any such non-excluded taxes, levies, imposts, duties, charges, fees, deductions or withholdings ("Non-Excluded Taxes") are required to be withheld from any amounts payable to the Administrative Agent or any Lender hereunder or under any Notes, (A) the amounts so payable to the Administrative Agent or such Lender shall be increased to the extent necessary to yield to the Administrative Agent or such Lender (after payment of all Non-Excluded Taxes) interest on any such other amounts

30

payable hereunder at the rates or in the amounts specified in this Credit Agreement and any Notes, provided, however, that the Borrowers shall be entitled to deduct and withhold any Non-Excluded Taxes and shall not be required to increase any such amounts payable to any Lender that is not organized under the laws of the United States of America or a state thereof if such Lender fails to comply with the requirements of paragraph (b) of this Section 3.13 whenever any Non-Excluded Taxes are payable by the Borrowers, and (B) as promptly as possible after requested the Borrowers shall send to the Administrative Agent for its own account or for the account of such Lender, as the case may be, a certified copy of an original official receipt received by the Borrowers showing payment thereof. If the Borrowers fail to pay any Non-Excluded Taxes when due to the appropriate taxing authority or fails to remit to the Administrative Agent the required receipts or other required documentary evidence, the Borrowers shall indemnify the Administrative Agent and any Lender for any incremental taxes, interest or penalties that may become payable by the Administrative Agent or any Lender as a result of any such failure. The agreements in this subsection shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder.

(b) Each Lender that is not incorporated under the laws of the United States of America or a state thereof shall:

(i) (A) on or before the date of any payment by the Borrowers under this Credit Agreement or Notes to such Lender, deliver to the Borrowers and the Administrative Agent (x) two duly completed copies of United States Internal Revenue Service Form 1001 or 4224, or successor applicable form, as the case may be, certifying that it is entitled to receive payments under this Credit Agreement and any Notes without deduction or withholding of any United States federal income taxes and (y) an Internal Revenue Service Form W-8 or W-9, or successor applicable form, as the case may be, certifying that it is entitled to an exemption from United States backup withholding tax;

(B) deliver to the Borrowers and the Administrative Agent two further copies of any such form or certification on or before the date that any such form or certification expires or becomes obsolete and after the occurrence of any event requiring a change in the most recent form previously delivered by it to the Borrowers; and

(C) obtain such extensions of time for filing and complete such forms or certifications as may reasonably be requested by the Borrowers or the Administrative Agent; or

(ii) in the case of any such Lender that is not a "bank" within the meaning of Section 881(c)(3)(A) of the Internal Revenue Code, (A) represent to the Borrowers (for the benefit of the Borrowers and the Administrative Agent) that it is not a bank within the meaning of Section 881(c)(3)(A) of the Internal Revenue Code, (B) agree to furnish to the Borrowers, on or before the date of any payment by the Borrowers, with a copy to the Administrative Agent, two accurate and complete

31

original signed copies of Internal Revenue Service Form W-8, or successor applicable form certifying to such Lender's legal entitlement at the date of such certificate to an exemption from U.S. withholding tax under the provisions of
Section 881(c) of the Internal Revenue Code with respect to payments to be made under this Credit Agreement and any Notes (and to deliver to the Borrowers and the Administrative Agent two further copies of such form on or before the date it expires or becomes obsolete and after the occurrence of any event requiring a change in the most recently provided form and, if necessary, obtain any extensions of time reasonably requested by the Borrowers or the Administrative Agent for filing and completing such forms), and (C) agree, to the extent legally entitled to do so, upon reasonable request by the Borrowers, to provide to the Borrowers (for the benefit of the Borrowers and the Administrative Agent) such other forms as may be reasonably required in order to establish the legal entitlement of such Lender to an exemption from withholding with respect to payments under this Credit Agreement and any Notes.

Notwithstanding the above, if any change in treaty, law or regulation has occurred after the date such Person becomes a Lender hereunder which renders all such forms inapplicable or which would prevent such Lender from duly completing and delivering any such form with respect to it and such Lender so advises the Borrowers and the Administrative Agent then such Lender shall be exempt from such requirements. Each Person that shall become a Lender or a participant of a Lender pursuant to Section 11.3 shall, upon the effectiveness of the related transfer, be required to provide all of the forms, certifications and statements required pursuant to this subsection (b); provided that in the case of a participant of a Lender, the obligations of such participant of a Lender pursuant to this subsection (b) shall be determined as if the participant of a Lender were a Lender except that such participant of a Lender shall furnish all such required forms, certifications and statements to the Lender from which the related participation shall have been purchased.

3.14 Compensation.

Except as expressly set forth in Section 3.3(c), the Borrowers promise to indemnify each Lender and to hold each Lender harmless from any loss or expense which such Lender may sustain or incur as a consequence of (a) default by the Borrowers in making a borrowing of, conversion into or continuation of Eurodollar Loans after the Borrowers have given a notice requesting the same in accordance with the provisions of this Credit Agreement, (b) default by the Borrowers in making any prepayment of a Eurodollar Loan after the Borrowers have given a notice thereof in accordance with the provisions of this Credit Agreement and (c) the making of a prepayment of Eurodollar Loans on a day which is not the last day of an Interest Period with respect thereto. Such indemnification shall be calculated by the Administrative Agent and may include an amount equal to (i) the amount of interest which would have accrued on the amount so prepaid, or not so borrowed, converted or continued, for the period from the date of such prepayment or of such failure to borrow, convert or continue to the last day of the applicable Interest Period (or, in the case of a failure to borrow, convert or continue, the Interest Period that would have commenced on the date of such failure) in each case at the applicable rate of interest for such Eurodollar Loans provided for herein minus (ii) the amount of interest which would have accrued to such Lender on

32

such amount by placing such amount on deposit for a comparable period with leading banks in the interbank Eurodollar market. The agreements in this Section shall survive the termination of this Credit Agreement and the payment of the Loans and all other amounts payable hereunder. Notwithstanding the foregoing, any prepayment of a Eurodollar Loan made hereunder (as a result of a mandatory requirement of this Credit Agreement) within thirty (30) days of the end of the Interest Period with respect to such Eurodollar Loan, shall not be subject to this Section 3.14.

3.15 Mitigation; Mandatory Assignment.

Each Lender shall use reasonable efforts to avoid or mitigate any increased cost or suspension of the availability of an interest rate under Sections 3.9 through 3.14 inclusive to the greatest extent practicable (including transferring the Loans to another lending office or affiliate of a Lender) unless, in the opinion of such Lender, such efforts would be likely to have an adverse effect upon it. In the event a Lender makes a request to the Borrowers for additional payments in accordance with Sections 3.9, 3.10, 3.11, 3.12, 3.13 or 3.14 or a Lender becomes a Defaulting Lender, then, provided that no Default or Event of Default has occurred and is continuing at such time, the Borrowers may, at their own expense (such expense to include any transfer fee payable to the Administrative Agent under Section 11.3(b) and any expense pursuant to Section 3.14), and in their sole discretion, require such Lender to transfer and assign in whole (but not in part), without recourse (in accordance with and subject to the terms and conditions of Section 11.3(b)), all of its interests, rights and obligations under this Credit Agreement to an assignee which shall assume such assigned obligations (which assignee may be another Lender, if a Lender accepts such assignment); provided that (a) such assignment shall not conflict with any law, rule or regulation or order of any court or other governmental authority and (b) the Borrowers or such assignee shall have paid to the assigning Lender in immediately available funds the principal of and interest accrued to the date of such payment on the portion of the Loans hereunder held by such assigning Lender and all other amounts owed to such assigning Lender hereunder, including amounts owed pursuant to Sections 3.9 through 3.14.

SECTION 4

GUARANTY

4.1 Guaranty of Payment.

Subject to Section 4.7 below, each of the Guarantors hereby, jointly and severally, unconditionally guarantees to each Lender, the prompt payment of the Obligations in full when due (whether at stated maturity, as a mandatory prepayment, by acceleration or otherwise). This Guaranty is a guaranty of payment and not of collection and is a continuing guaranty and shall apply to all Obligations whenever arising.

4.2 Obligations Unconditional.

The obligations of the Guarantors hereunder are absolute and unconditional, irrespective of the value, genuineness, validity, regularity or enforceability of any of the Credit Documents or any

33

other agreement or instrument referred to therein, to the fullest extent permitted by applicable law, irrespective of any other circumstance whatsoever which might otherwise constitute a legal or equitable discharge or defense of a surety or guarantor. Each Guarantor agrees that this Guaranty may be enforced by the Lenders without the necessity at any time of resorting to or exhausting any other security or collateral and without the necessity at any time of having recourse to the Notes or any other of the Credit Documents or any collateral, if any, hereafter securing the Obligations or otherwise and each Guarantor hereby waives the right to require the Lenders to proceed against the Borrowers or any other Person (including a co-guarantor) or to require the Lenders to pursue any other remedy or enforce any other right. Each Guarantor further agrees that it shall have no right of subrogation, indemnity, reimbursement or contribution against the Borrowers or any other Guarantor of the Obligations for amounts paid under this Guaranty until such time as the Lenders have been paid in full, all Commitments under the Credit Agreement have been terminated and no Person or Governmental Authority shall have any right to request any return or reimbursement of funds from the Lenders in connection with monies received under the Credit Documents. Each Guarantor further agrees that nothing contained herein shall prevent the Lenders from suing on the Notes or any of the other Credit Documents or foreclosing its security interest in or Lien on any collateral, if any, securing the Obligations or from exercising any other rights available to it under this Credit Agreement, the Notes, any other of the Credit Documents, or any other instrument of security, if any, and the exercise of any of the aforesaid rights and the completion of any foreclosure proceedings shall not constitute a discharge of any of any Guarantor's obligations hereunder; it being the purpose and intent of each Guarantor that its obligations hereunder shall be absolute, independent and unconditional under any and all circumstances. Neither any Guarantor's obligations under this Guaranty nor any remedy for the enforcement thereof shall be impaired, modified, changed or released in any manner whatsoever by an impairment, modification, change, release or limitation of the liability of the Borrowers or by reason of the bankruptcy or insolvency of the Borrowers. Each Guarantor waives any and all notice of the creation, renewal, extension or accrual of any of the Obligations and notice of or proof of reliance of by the Administrative Agent or any Lender upon this Guarantee or acceptance of this Guarantee. The Obligations, and any of them, shall conclusively be deemed to have been created, contracted or incurred, or renewed, extended, amended or waived, in reliance upon this Guarantee. All dealings between the Borrowers and any of the Guarantors, on the one hand, and the Administrative Agent and the Lenders, on the other hand, likewise shall be conclusively presumed to have been had or consummated in reliance upon this Guarantee. The Guarantors further agree to all rights of set-off as set forth in Section 11.2.

4.3 Modifications.

Each Guarantor agrees that (a) all or any part of the security now or hereafter held for the Credit Party Obligations, if any, may be exchanged, compromised or surrendered from time to time; (b) the Lenders shall not have any obligation to protect, perfect, secure or insure any such security interests, liens or encumbrances now or hereafter held, if any, for the Obligations or the properties subject thereto; (c) the time or place of payment of the Obligations may be changed or extended, in whole or in part, to a time certain or otherwise, and may be renewed or accelerated, in whole or in part; (d) the Borrowers and any other party liable for payment under the Credit Documents may be granted indulgences generally; (e) any of the provisions of the Notes or any of the other Credit Documents may be modified, amended or waived; (f) any party (including any co-guarantor) liable

34

for the payment thereof may be granted indulgences or be released; and (g) any deposit balance for the credit of the Borrowers or any other party liable for the payment of the Obligations or liable upon any security therefor may be released, in whole or in part, at, before or after the stated, extended or accelerated maturity of the Obligations, all without notice to or further assent by such Guarantor, which shall remain bound thereon, notwithstanding any such exchange, compromise, surrender, extension, renewal, acceleration, modification, indulgence or release.

4.4 Waiver of Rights.

Each Guarantor expressly waives to the fullest extent permitted by applicable law: (a) notice of acceptance of this Guaranty by the Lenders and of all extensions of credit to the Borrowers by the Lenders; (b) presentment and demand for payment or performance of any of the Obligations; (c) protest and notice of dishonor or of default (except as specifically required in the Credit Agreement) with respect to the Obligations or with respect to any security therefor; (d) notice of the Lenders obtaining, amending, substituting for, releasing, waiving or modifying any security interest, lien or encumbrance, if any, hereafter securing the Obligations, or the Lenders' subordinating, compromising, discharging or releasing such security interests, liens or encumbrances, if any; and (e) all other notices to which such Guarantor might otherwise be entitled.

4.5 Reinstatement.

The obligations of the Guarantors under this Section 4 shall be automatically reinstated if and to the extent that for any reason any payment by or on behalf of any Person in respect of the Obligations is rescinded or must be otherwise restored by any holder of any of the Obligations, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, and each Guarantor agrees that it will indemnify the Administrative Agent and each Lender on demand for all reasonable costs and expenses (including, without limitation, reasonable fees of counsel) incurred by the Administrative Agent or such Lender in connection with such rescission or restoration, including any such costs and expenses incurred in defending against any claim alleging that such payment constituted a preference, fraudulent transfer or similar payment under any bankruptcy, insolvency or similar law.

4.6 Remedies.

The Guarantors agree that, as between the Guarantors, on the one hand, and the Administrative Agent and the Lenders, on the other hand, the Obligations may be declared to be forthwith due and payable as provided in
Section 9 (and shall be deemed to have become automatically due and payable in the circumstances provided in Section 9) notwithstanding any stay, injunction or other prohibition preventing such declaration (or preventing such Obligations from becoming automatically due and payable) as against any other Person and that, in the event of such declaration (or such Obligations being deemed to have become automatically due and payable), such Obligations (whether or not due and payable by any other Person) shall forthwith become due and payable by the Guarantors.

35

4.7 Limitation of Guaranty.

Notwithstanding any provision to the contrary contained herein or in any of the other Credit Documents, to the extent the obligations of any Guarantor shall be adjudicated to be invalid or unenforceable for any reason (including, without limitation, because of any applicable state or federal law relating to fraudulent conveyances or transfers) then the obligations of such Guarantor hereunder shall be limited to the maximum amount that is permissible under applicable law (whether federal or state and including, without limitation, the Bankruptcy Code).

4.8 Rights of Contribution.

The Credit Parties agree among themselves that, in connection with payments made hereunder, each Credit Party shall have contribution rights against the other Credit Parties as permitted under applicable law. Such contribution rights shall be subordinate and subject in right of payment to the obligations of the Credit Parties under the Credit Documents and no Credit Party shall exercise such rights of contribution until all Credit Party Obligations have been paid in full and the Commitments terminated.

SECTION 5

CONDITIONS PRECEDENT

5.1 Closing Conditions.

The obligation of the Lenders to enter into this Credit Agreement and make the initial Extensions of Credit is subject to satisfaction of the following conditions:

(a) Executed Credit Documents. Receipt by the Administrative Agent of duly executed copies of: (i) this Credit Agreement; (ii) the Notes; and (iii) all other Credit Documents required to be delivered on or before the Effective Date, each in form and substance reasonably acceptable to the Administrative Agent in its sole discretion.

(b) Partnership Documents. With respect to each Credit Party that is a partnership, receipt by the Administrative Agent of the following:

(i) Authorization. Authorization of the general partner(s) of such Credit Party, as of the Closing Date, approving and adopting the Credit Documents to be executed by such Credit Party and authorizing the execution and delivery thereof.

(ii) Partnership Agreements. Certified copies of the partnership agreement of such Credit Party, together with all amendments thereto.

(iii) Certificates of Good Standing or Existence. Certificate of good standing or existence for such Credit Party issued as of a recent date by its state of

36

organization and each other state where the failure to qualify or be in good standing could have a Material Adverse Effect.

(iv) Incumbency. An incumbency certificate of the general partner(s) of such Credit Party, certified by a secretary or assistant secretary of such general partner to be true and correct as of the Closing Date.

(c) Corporate Documents. With respect to each Credit Party that is a corporation, receipt by the Administrative Agent of the following:

(i) Charter Documents. Copies of the articles or certificates of incorporation or other charter documents of each such Credit Party certified to be true and complete as of a recent date by the appropriate Governmental Authority of the state or other jurisdiction of its incorporation and certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Closing Date.

(ii) Bylaws. A copy of the bylaws of each such Credit Party certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Effective Date.

(iii) Resolutions. Copies of resolutions approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof, certified by a secretary or assistant secretary of such Credit Party to be true and correct and in full force and effect as of the Effective Date.

(iv) Good Standing. Copies of (A) certificates of good standing, existence or their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of incorporation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect and (B) to the extent available, a certificate indicating payment of all corporate franchise taxes certified as of a recent date by the appropriate governmental taxing authorities.

(v) Incumbency. An incumbency certificate of such Credit Party certified by a secretary or assistant secretary of such Credit Party to be true and correct as of the Effective Date.

(d) Limited Liability Company Documents. With respect to each Credit Party that is a limited liability company, receipt by the Administrative Agent of the following:

(i) Certificate of Formation. A copy of the certificate of formation of such Credit Party certified to be true and complete by the appropriate Governmental Authority of the state or jurisdiction of its formation and certified by the sole member of such Credit Party to be true and correct as of the Closing Date.

37

(ii) LLC Agreement. A copy of the LLC Agreement of such Credit Party certified by the sole member of such Credit Party to be true and correct as of the Closing Date.

(iii) Resolutions. Copies of resolutions approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof.

(iv) Good Standing. Copies of certificates of good standing, existence of their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of formation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect.

(e) Trust Documents. With respect to each Credit Party that is a REIT, receipt by the Administrative Agent of the following:

(i) Declaration of Trust. A copy of the Declaration of Trust of such Credit Party certified to be true and complete by the appropriate Governmental Authority of the state or jurisdiction of its formation and certified by the trustee of such Credit Party to be true and correct as of the Closing Date.

(ii) Bylaws. A copy of the Bylaws of such Credit Party certified by the trustee of such Credit Party to be true and complete as of the Closing Date.

(iii) Resolutions. Copies of the resolutions of the Board of Trustees of such Credit Party approving and adopting the Credit Documents to which it is a party, the transactions contemplated therein and authorizing execution and delivery thereof.

(iv) Good Standing. Copies of certificates of good standing, existence of their equivalent with respect to such Credit Party certified as of a recent date by the appropriate Governmental Authorities of the state or other jurisdiction of formation and each other jurisdiction in which the failure to so qualify and be in good standing could have a Material Adverse Effect.

(f) Financial Statements. Receipt and approval by the Lenders of: (i) the consolidated financial statements of the Credit Parties and their Subsidiaries for each of the three years ending December 31, 1995, 1996 and 1997, to the extent available, including balance sheets and income and cash flow statements, audited by nationally recognized independent public accountants and containing an unqualified opinion of such firm that such statements present fairly, in all material respects, the consolidated financial position and results of operations of such Person, and are prepared in conformity with GAAP, and (ii) interim consolidated financial statements of the Credit Parties and their Subsidiaries for the six months ending June 30, 1998, including balance sheets and income and cash flow statements, accompanied by a certificate of the chief financial officer of BRT to the effect

38

that such annual Financial Statements fairly present in all material respects the financial condition of the Credit Parties and their Subsidiaries and have been prepared in accordance with GAAP, subject to changes resulting from audit and normal year-end audit adjustments.

(g) Financial Projections and Other Information. Receipt and approval by the Lenders of (i) financial projections for the Combined Parties, (ii) summary financial projections for each Property, for the calendar year ending 1998, in a form acceptable to the Lenders, and such other financial information as the Lenders may require and
(iii) pro forma financial statements of the Credit Parties and their Subsidiaries, including a balance sheet, an income statement and a cash flow statement, giving effect to the acquisition of the Project Bell Properties, together with a certificate showing compliance with the financial covenants in Section 7.2 after giving effect to such acquisition.

(h) Opinion of Counsel. Receipt by the Administrative Agent of opinions (which shall cover, among other things, authority, legality, validity, binding effect and enforceability), satisfactory to the Administrative Agent, addressed to the Administrative Agent on behalf of the Lenders and dated as of the Closing Date, from legal counsel to the Credit Parties.

(i) Material Adverse Effect. There shall not have occurred a change since June 30, 1998 that has had or could reasonably be expected to have a Material Adverse Effect.

(j) Litigation. There shall not exist any pending or threatened action, suit, investigation or proceeding against a Credit Party or any of their Subsidiaries that would have or would reasonably be expected to have a Material Adverse Effect.

(k) Officer's Certificates. The Administrative Agent shall have received a certificate on behalf of the Credit Parties as of the Closing Date stating that (i) the Credit Parties and each of their Subsidiaries are in compliance with all existing material financial obligations, (ii) no action, suit, investigation or proceeding is pending or threatened in any court or before any arbitrator or governmental instrumentality that purports to effect a Credit Party or any transaction contemplated by the Credit Documents, if such action, suit, investigation or proceeding could have or could be reasonably expected to have a Material Adverse Effect, (iii) the financial statements and information delivered pursuant to Section 5.1(f) and (g) were prepared in good faith and using reasonable assumptions and (iv) immediately after giving effect to this Credit Agreement, the other Credit Documents and all the transactions contemplated therein to occur on such date, (A) each of the Credit Parties is Solvent, (B) no Default or Event of Default exists, (C) all representations and warranties contained herein and in the other Credit Documents are true and correct in all material respects, and (D) the Credit Parties and their Subsidiaries are in compliance as of June 30, 1998 (on a pro forma basis giving effect to the acquisition of the Project Bell Properties) with each of the financial covenants set forth in Section 7.2.

(l) Fees and Expenses. Payment by the Borrowers of all fees and expenses owed by them to the Lenders and the Administrative Agent, including, without limitation, payment to the Administrative Agent of the fees set forth herein and in the Fee Letter.

39

(m) Consents and Approvals. All governmental, shareholder, partner and third-party consents and approvals necessary or, in the opinion of the Administrative Agent, desirable in connection with the Loans and the transactions contemplated under the Credit Documents shall have been duly obtained and shall be in full force and effect, and a copy of each such consent or approval shall have been delivered to the Administrative Agent.

(n) Due Diligence. Completion by the Lenders of all due diligence with respect to the Combined Parties, including, but not limited to, a review of all existing Indebtedness of the Combined Parties and all Properties, including, but not limited to, the Project Bell Properties.

(o) Senior Credit Agreement. Receipt by the Administrative Agent of satisfactory evidence that the Borrowers have entered into (or are simultaneously entering into) the Senior Credit Agreement on terms acceptable to the Administrative Agent

(p) Acquisition. Receipt by the Administrative Agent of evidence that the Borrowers have acquired (or are simultaneously acquiring), on terms acceptable to the Administrative Agent, the Project Bell Properties for a price not to exceed $620 million.

(q) Other. Receipt by the Lenders of such other documents, instruments, agreements or information as reasonably and timely requested by any Lender, including, but not limited to, information regarding litigation, tax, accounting, labor, insurance, pension liabilities (actual or contingent), real estate leases, material contracts, debt agreements, property ownership and contingent liabilities of the Credit Parties and their Subsidiaries.

5.2 Conditions to All Extensions of Credit.

In addition to the conditions precedent stated elsewhere herein, the Lenders shall not be obligated to make Loans unless:

(a) Delivery of Notice. The Borrowers shall have delivered a Notice of Borrowing, duly executed and completed, by the time specified in Section 2.1.

(b) Representations and Warranties. The representations and warranties made by the Credit Parties in any Credit Document are true and correct in all material respects at and as if made as of such date except to the extent they expressly relate to an earlier date.

(c) No Default. No Default or Event of Default shall exist or be continuing either prior to or after giving effect thereto.

(d) Availability. Immediately after giving effect to the making of the requested Loan, the aggregate amount of Loans advanced hereunder shall be less than or equal to $150,000,000.

40

The delivery of each Notice of Borrowing shall constitute a representation and warranty by the Borrowers of the correctness of the matters specified in subsections (b), (c), and (d) above.

SECTION 6

REPRESENTATIONS AND WARRANTIES

The Credit Parties hereby represent to the Administrative Agent and each Lender that:

6.1 Financial Condition.

The financial statements delivered to the Lenders pursuant to Section 5.1(d) and Section 7.1(a) and (b): (a) have been prepared in accordance with GAAP and (b) present fairly the consolidated financial condition, results of operations and cash flows of the Credit Parties and their Subsidiaries as of such date and for such periods. Since June 30, 1998, there has been no sale, transfer or other disposition by any Credit Party or any of their Subsidiaries of any material part of the business or property of the Credit Parties and their Subsidiaries, taken as a whole, and no purchase or other acquisition by any of them of any business or property (including any capital stock of any other Person) material in relation to the consolidated financial condition of the Credit Parties and their Subsidiaries, taken as a whole, in each case, which, is not (i) reflected in the most recent financial statements delivered to the Lenders pursuant to Section 5.1(f) and Section 7.1 or in the notes thereto or (ii) otherwise permitted by the terms of this Credit Agreement and communicated to the Administrative Agent.

6.2 No Material Change.

Since the later of June 30, 1998 or the date of the last Loan made under this Credit Agreement, there has been no development or event relating to or affecting a Combined Party which has had or would be reasonably expected to have a Material Adverse Effect.

6.3 Organization and Good Standing.

Each Credit Party (a) is either a partnership, a corporation, a limited liability company or a REIT duly organized, validly existing and in good standing under the laws of the State (or other jurisdiction) of its organization or formation, (b) is duly qualified and in good standing as a foreign partnership, a foreign corporation, a foreign limited liability company or a foreign REIT and authorized to do business in every other jurisdiction unless the failure to be so qualified, in good standing or authorized would not have or would not be expected to have a Material Adverse Effect and (c) has the power and authority to own its properties and to carry on its business as now conducted and as proposed to be conducted.

6.4 Due Authorization.

Each Credit Party (a) has the power and authority to execute, deliver and perform this Credit Agreement and the other Credit Documents to which it is a party and to incur the obligations herein

41

and therein provided for and (b) is duly authorized to, and has been authorized by all necessary action, to execute, deliver and perform this Credit Agreement and the other Credit Documents to which it is a party.

6.5 No Conflicts.

Neither the execution and delivery of the Credit Documents, nor the consummation of the transactions contemplated therein, nor the performance of or compliance with the terms and provisions thereof by a Credit Party will (a) violate or conflict with any provision of its organizational documents, (b) violate, contravene or materially conflict with any Requirement of Law or any other law, regulation (including, without limitation, Regulation U or Regulation X), order, writ, judgment, injunction, decree or permit applicable to it, (c) violate, contravene or conflict with contractual provisions of, or cause an event of default under, any indenture, loan agreement, mortgage, deed of trust, contract or other agreement or instrument to which it is a party or by which it may be bound, the violation of which would have or would be reasonably expected to have a Material Adverse Effect, or (d) result in or require the creation of any Lien upon or with respect to its properties.

6.6 Consents.

Except for consents, approvals and authorizations which have been obtained, no consent, approval, authorization or order of, or filing, registration or qualification with, any court or Governmental Authority or third party in respect of any Credit Party is required in connection with the execution, delivery or performance of this Credit Agreement or any of the other Credit Documents by such Credit Party.

6.7 Enforceable Obligations.

This Credit Agreement and the other Credit Documents have been duly executed and delivered and constitute legal, valid and binding obligations of each Credit Party enforceable against such Credit Party in accordance with their respective terms, except as may be limited by bankruptcy or insolvency laws or similar laws affecting creditors' rights generally or by general equitable principles.

6.8 No Default.

No Combined Party is in default in any respect under any contract, lease, loan agreement, indenture, mortgage, security agreement or other agreement or obligation to which it is a party or by which any of its properties is bound which default would have or would be reasonably expected to have a Material Adverse Effect. No Default or Event of Default has occurred or exists except as previously disclosed in writing to the Lenders.

6.9 Ownership.

Each Combined Party is the owner of, and has good and marketable title to, all of its respective assets and none of such assets is subject to any Lien other than Permitted Liens.

42

6.10 Indebtedness.

The Combined Parties have no Indebtedness except as otherwise permitted by this Credit Agreement.

6.11 Litigation.

There are no actions, suits or legal, equitable, arbitration or administrative proceedings, pending or, to the knowledge of any Credit Party, threatened against, a Combined Party which would have or would be reasonably expected to have a Material Adverse Effect.

6.12 Taxes.

Each Credit Party, and each of its Subsidiaries, has filed, or caused to be filed, all tax returns (federal, state, local and foreign) required to be filed and has paid (a) all amounts of taxes shown thereon to be due (including interest and penalties) and (b) all other taxes, fees, assessments and other governmental charges (including mortgage recording taxes, documentary stamp taxes and intangibles taxes) owing by it, except for such taxes (i) which are not yet delinquent or (ii) that are being contested in good faith and by proper proceedings, and against which adequate reserves are being maintained in accordance with GAAP. No Credit Party is aware of any proposed tax assessments against it or any of its Subsidiaries.

6.13 Compliance with Law.

Each Combined Party is in compliance with all Requirements of Law and all other laws, rules, regulations, orders and decrees (including without limitation Environmental Laws) applicable to it, or to its properties, unless such failure to comply would not have or would not be reasonably expected to have a Material Adverse Effect. No Requirement of Law would be reasonably expected to cause a Material Adverse Effect.

6.14 Compliance with ERISA.

Except as would not result in or be reasonably expected to result in a Material Adverse Effect:

(a) During the five-year period prior to the date on which this representation is made or deemed made: (i) no ERISA Event has occurred, and, to the best of each Credit Party's, each Subsidiary of a Credit Party's and each ERISA Affiliate's knowledge, no event or condition has occurred or exists as a result of which any ERISA Event could reasonably be expected to occur, with respect to any Plan; (ii) no "accumulated funding deficiency," as such term is defined in
Section 302 of ERISA and Section 412 of the Code, whether or not waived, has occurred with respect to any Plan; (iii) each Plan has been maintained, operated, and funded in compliance with its own terms and in material compliance with the provisions of ERISA, the Code, and any other applicable federal or state laws; and (iv) no Lien in favor or the PBGC or a Plan has arisen or is reasonably likely to arise on account of any Plan.

43

(b) The actuarial present value of all "benefit liabilities" (as defined in Section 4001(a)(16) of ERISA), whether or not vested, under each Single Employer Plan, as of the last annual valuation date prior to the date on which this representation is made or deemed made (determined, in each case, in accordance with Financial Accounting Standards Board Statement 87, utilizing the actuarial assumptions used in such Plan's most recent actuarial valuation report), did not exceed as of such valuation date the fair market value of the assets of such Plan.

(c) No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate has incurred, or, to the best of each such party's knowledge, is reasonably expected to incur, any withdrawal liability under ERISA to any Multiemployer Plan or Multiple Employer Plan. No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate would become subject to any withdrawal liability under ERISA if any such party were to withdraw completely from all Multiemployer Plans and Multiple Employer Plans as of the valuation date most closely preceding the date on which this representation is made or deemed made. No Credit Party, Subsidiary of a Credit Party or ERISA Affiliate has received any notification that any Multiemployer Plan is in reorganization (within the meaning of Section 4241 of ERISA), is insolvent (within the meaning of Section 4245 of ERISA), or has been terminated (within the meaning of Title IV of ERISA), and no Multiemployer Plan is, to the best of each such party's knowledge, reasonably expected to be in reorganization, insolvent, or terminated.

(d) No prohibited transaction (within the meaning of Section 406 of ERISA or Section 4975 of the Code) or breach of fiduciary responsibility has occurred with respect to a Plan which has subjected or may subject any Credit Party, any Subsidiary of a Credit Party or any ERISA Affiliate to any liability under Sections 406, 409, 502(i), or 502(l) of ERISA or Section 4975 of the Code, or under any agreement or other instrument pursuant to which any Credit Party, any Subsidiary of a Credit Party or any ERISA Affiliate has agreed or is required to indemnify any person against any such liability.

(e) No Credit Party, Subsidiary of a Credit Party nor any of their ERISA Affiliates has material liability with respect to "expected post-retirement benefit obligations" within the meaning of the Financial Accounting Standards Board Statement 106. Each Plan which is a welfare plan (as defined in Section 3(1) of ERISA) to which Sections 601-609 of ERISA and Section 4980B of the Code apply has been administered in compliance in all material respects with such sections.

6.15 Organization Structure/Subsidiaries.

As of the Closing Date, (a) Schedule 6.15 is a complete and accurate organization chart of the Combined Parties, and (b) no Credit Party has any Subsidiaries or owns an interest, directly or indirectly, in any joint venture, except as set forth on Schedule 6.15. The outstanding equity interest of all Subsidiaries of the Credit Parties are validly issued, fully paid and non-assessable and

44

are owned by the Credit Parties free and clear of all Liens. Schedule 6.15 shall be updated as of the end of each fiscal quarter as set forth in Section 7.1(c).

6.16 Use of Proceeds; Margin Stock.

The proceeds of the Loans hereunder will be used solely for the purposes specified in Section 7.10. None of the proceeds of the Loans will be used in a manner that would violate Regulation U, Regulation X, or Regulation T. No proceeds of the Loans hereunder will be used for the acquisition of another Person unless the board of directors (or other comparable governing body) or stockholders (or other equity owners), as appropriate, of such Person has approved such acquisition.

6.17 Government Regulation.

No Credit Party, nor any of its Subsidiaries, is subject to regulation under the Public Utility Holding Company Act of 1935, the Federal Power Act, the Investment Company Act of 1940 or the Interstate Commerce Act, each as amended. In addition, no Credit Party, nor any of its Subsidiaries, is
(a) an "investment company" registered or required to be registered under the Investment Company Act of 1940, as amended, or controlled by such a company, or (b) a "holding company," or a "Subsidiary company" of a "holding company," or an "affiliate" of a "holding company" or of a "Subsidiary" or a "holding company," within the meaning of the Public Utility Holding Company Act of 1935, as amended. No director, executive officer or principal shareholder of a Credit Party or any of its Subsidiaries is a director, executive officer or principal shareholder of any Lender. For the purposes hereof the terms "director," "executive officer" and "principal shareholder" (when used with reference to any Lender) have the respective meanings assigned thereto in Regulation O issued by the Board of Governors of the Federal Reserve System.

6.18 Environmental Matters.

(a) Except as would not have or be reasonably expected to have a Material Adverse Effect:

(i) Each of the Properties and all operations at the Properties are in material compliance with all applicable Environmental Laws, and there is no violation of any Environmental Law with respect to the Properties or the businesses operated by a Credit Party or any of its Subsidiaries (the "Businesses"), and there are no conditions relating to the Businesses or Properties that would be reasonably expected to give rise to liability under any applicable Environmental Laws.

(ii) No Credit Party, nor any of its Subsidiaries, has received any written notice of, or inquiry from any Governmental Authority regarding, any violation, alleged violation, non-compliance, liability or potential liability regarding Hazardous Materials or compliance with Environmental Laws with regard to any of the Properties or the Businesses, nor does any Credit Party or any of its Subsidiaries have knowledge that any such notice is being threatened.

45

(iii) Hazardous Materials have not been transported or disposed of from the Properties, or generated, treated, stored or disposed of at, on or under any of the Properties or any other location, in each case by, or on behalf or with the permission of, any Credit Party or any of its Subsidiaries in a manner that would reasonably be expected to give rise to liability under any applicable Environmental Law.

(iv) No judicial proceeding or governmental or administrative action is pending or, to the knowledge of any Credit Party or any of its Subsidiaries, threatened, under any Environmental Law to which any Credit Party or any of its Subsidiaries is or will be named as a party, nor are there any consent decrees or other decrees, consent orders, administrative orders or other orders, or other administrative or judicial requirements outstanding under any Environmental Law with respect to any Credit Party or any of its Subsidiaries, the Properties or the Businesses, in any amount reportable under the federal Comprehensive Environmental Response, Compensation and Liability Act or any analogous state law, except releases in compliance with any Environmental Laws.

(v) There has been no release or threat of release of Hazardous Materials at or from the Properties, or arising from or related to the operations (including, without limitation, disposal) of a Credit Party or any of its Subsidiaries in connection with the Properties or otherwise in connection with the Businesses except in compliance with Environmental Laws.

(vi) None of the Properties contains, or to the best of our knowledge has previously contained, any Hazardous Materials at, on or under the Properties in amounts or concentrations that, if released, constitute or constituted a violation of, or could give rise to liability under, Environmental Laws.

(vii) No Credit Party, nor any of its Subsidiaries, has assumed any liability of any Person (other than another Borrower) under any Environmental Law.

(b) Each Credit Party, and each of its Subsidiaries, has adopted procedures that are designed to (i) ensure that each such party, any of its operations and each of the properties owned or leased by such party remains in compliance with applicable Environmental Laws and (ii) minimize any liabilities or potential liabilities that each such party, any of its operations and each of the properties owned or leased by each such party may have under applicable Environmental Laws.

6.19 Solvency.

Each Credit Party, is and, after consummation of the transactions contemplated by this Credit Agreement, will be Solvent.

46

6.20 Investments.

All Investments of the Credit Parties and their Subsidiaries are Permitted Investments.

6.21 Location of Properties.

As of the Closing Date, set forth on Schedule 6.21 is (a) a list of all Properties (with street address, county and state where located) and the owner of such Property (b) a list of all Unsecured Properties. Schedule 6.21 shall be updated as of the end of each fiscal quarter as set forth in Section 7.1(c).

6.22 Disclosure.

Neither this Credit Agreement nor any financial statements delivered to the Lenders nor any other document, certificate or statement furnished to the Lenders by or on behalf of any Credit Party in connection with the transactions contemplated hereby contains any untrue statement of a material fact or omits to state a material fact necessary in order to make the statements contained therein or herein not misleading in light of the circumstances in which made; provided, however, that the Credit Parties make no representation or warranty regarding the information delivered pursuant to
Section 7.1(i).

6.23 Licenses, etc.

The Combined Parties have obtained, and hold in full force and effect, all franchises, licenses, permits, certificates, authorizations, qualifications, accreditations, easements, rights of way and other rights, consents and approvals which are necessary for the operation of their respective businesses as presently conducted, except where the failure to obtain the same would not have or would not reasonably be expected to have a Material Adverse Effect.

6.24 No Burdensome Restrictions.

No Combined Party is a party to any agreement or instrument or subject to any other obligation or any charter or corporate restriction or any provision of any applicable law, rule or regulation which, individually or in the aggregate, would have or would be reasonably expected to have a Material Adverse Effect.

6.25 Year 2000 Compliance.

Each Credit Party reasonably believes that the Year 2000 Problem has been appropriately addressed by it and the Year 2000 Problem will not exist with respect to it or any other Combined Party on and after January 1, 2000, to the extent such Year 2000 Problem would cause or be reasonably expected to cause a Material Adverse Effect.

6.26 Excluded Material Subsidiaries.

With respect to the Excluded Material Subsidiaries:

47

(a) Brandywine Holdings I, Inc. holds a nominal interest in BOP to ensure that BOP will at all times have at least two partners, and has no other activity and owns no other assets.

(b) Brandywine Holdings II and Brandywine Holdings III have no assets or activity and are in the process of being dissolved.

(c) Brandywine Realty Services Corporation ("BRSCO") provides services to BOP and is Subsidiaries, as well as third parties, but does not own any Properties. Although BOP owns ninety five percent of the financial interest in BRSCO through ownership of preferred and common interests, substantially all of the common equity in BRSCO is held by a partnership in which neither BOP nor BRT has any ownership.

(d) Each of the remaining Excluded Materials Subsidiaries is an entity which is subject to provisions in its charter documents that require it to be a "bankruptcy remote" or "single purpose" entity and therefore prohibit it from, among other things, guaranteeing or becoming jointly and severally liable for the Indebtedness of others.

SECTION 7

AFFIRMATIVE COVENANTS

Each Credit Party hereby covenants and agrees that so long as this Credit Agreement is in effect and until the Loans, together with interest and fees and other obligations then due and payable hereunder, have been paid in full and the Commitments shall have terminated:

7.1 Information Covenants.

The Borrowers will furnish, or cause to be furnished, to the Administrative Agent and each of the Lenders:

(a) Annual Financial Statements. As soon as available, and in any event within 90 days after the close of each fiscal year of the Credit Parties, a consolidated balance sheet and income statement of the Credit Parties and their Subsidiaries as of the end of such fiscal year, together with related consolidated statements of operations and retained earnings and of cash flows for such fiscal year, setting forth in comparative form consolidated figures for the preceding fiscal year, all such financial information described above to be in reasonable form and detail and audited by independent certified public accountants of recognized national standing reasonably acceptable to the Administrative Agent and whose opinion shall be to the effect that such financial statements have been prepared in accordance with GAAP (except for changes with which such accountants concur) and shall not be limited as to the scope of the audit or qualified in any manner.

48

(b) Quarterly Financial Statements. As soon as available, and in any event within 45 days after the close of each fiscal quarter of the Credit Parties, a consolidated balance sheet and income statement of the Credit Parties and their Subsidiaries, as of the end of such fiscal quarter, together with related consolidated statements of operations and retained earnings and of cash flows for such fiscal quarter in each case setting forth in comparative form consolidated figures for (A) the corresponding period of the preceding fiscal year and (B) management's proposed budget for such period, all such financial information described above to be in reasonable form and detail and reasonably acceptable to the Administrative Agent, and accompanied by a certificate of the chief financial officer of BOP to the effect that such quarterly financial statements fairly present in all material respects the financial condition of the Credit Parties and their Subsidiaries and have been prepared in accordance with GAAP, subject to changes resulting from audit and normal year-end audit adjustments.

(c) Officer's Certificate. At the time of delivery of the financial statements provided for in Sections 7.1(a) and 7.1(b) above, a certificate of the chief financial officer of BRT, substantially in the form of Exhibit 7.1(c), (i) demonstrating compliance with the financial covenants contained in Section 7.2 by calculation thereof as of the end of each such fiscal period, (ii) stating that no Default or Event of Default exists, or if any Default or Event of Default does exist, specifying the nature and extent thereof and what action the Borrowers propose to take with respect thereto, (iii) providing information regarding (A) Investments in a manner to demonstrate compliance with Section 8.6, (B) construction and development projects in a manner to demonstrate compliance with
Section 8.12 and (C) dividends and redemption of shares in a manner to demonstrate compliance with Section 8.7 and (iv) updating Schedule 6.15 and Schedule 6.21 as appropriate.

(d) Accountant's Certificate. Within the period for delivery of the annual financial statements provided in Section 7.1(a), a certificate of the accountants conducting the annual audit stating that they have reviewed this Credit Agreement and stating further whether, in the course of their audit, they have become aware of any Default or Event of Default and, if any such Default or Event of Default exists, specifying the nature and extent thereof.

(e) Annual Information and Projections. Within 30 days after the end of each fiscal year of the Credit Parties, all such financial information regarding the Credit Parties and their Subsidiaries and specifically regarding the Properties, as the Administrative Agent shall reasonably request, including, but not limited to, partnership and joint venture agreements, property cash flow projections, property budgets, actual and budgeted capital expenditures, operating statements (current year and immediately preceding year, if the Property existed as a Property in the immediately preceding year), mortgage information, rent rolls, lease expiration reports, leasing status reports, note payable summary, bullet note summary, equity funding requirements, contingent liability summary, line of credit summary, line of credit collateral summary, wrap note or note receivable summary, schedule of outstanding letters of credit, summary of cash and cash equivalents, projection of management and leasing fees and overhead budgets.

49

(f) Auditor's Reports. Promptly upon receipt thereof, a copy of any "management letter" submitted by independent accountants to any Credit Party or any of its Subsidiaries in connection with any annual, interim or special audit of the books of such Credit Party or any of its Subsidiaries.

(g) Reports. Promptly upon transmission or receipt thereof,
(i) copies of any filings and registrations with, and reports to or from, the Securities and Exchange Commission, or any successor agency, and copies of all financial statements, proxy statements, notices and reports as any Credit Party or any of its Subsidiaries shall send to its shareholders or partners generally, (ii) copies of all income tax returns filed by a Credit Party and (iii) upon the written request of the Administrative Agent, all reports and written information to and from the United States Environmental Protection Agency, or any state or local agency responsible for environmental matters, the United States Occupational Health and Safety Administration, or any state or local agency responsible for health and safety matters, or any successor agencies or authorities concerning environmental, health or safety matters; provided, however, that if any such transmissions are done electronically, the Borrowers shall instead promptly notify the Administrative Agent of same and provide information on how to retrieve such information.

(h) Notices. Upon a Credit Party obtaining knowledge thereof, such Credit Party will give written notice to the Administrative Agent immediately of (i) the occurrence of an event or condition consisting of a Default or Event of Default, specifying the nature and existence thereof and what action the Credit Parties propose to take with respect thereto, and (ii) the occurrence of any of the following with respect to any Credit Party or any of its Subsidiaries (A) the pendency or commencement of any litigation, arbitral or governmental proceeding against any Credit Party or any of its Subsidiaries which if adversely determined would have or would be reasonably expected to have a Material Adverse Effect, (B) the institution of any proceedings against any Credit Party or any of its Subsidiaries with respect to, or the receipt of notice by such Person of potential liability or responsibility for violation, or alleged violation of any federal, state or local law, rule or regulation, including but not limited to, Environmental Laws, the violation of which would have or would be reasonably expected to have a Material Adverse Effect, (C) the occurrence of any default or nonpayment of nonrecourse Indebtedness of a Credit Party in an aggregate principal amount in excess of $10,000,000 or (D) any information that a Credit Party may have a Year 2000 Problem on or after January 1, 2000.

(i) ERISA. Upon a Credit Party or any ERISA Affiliate obtaining knowledge thereof, the Credit Parties will give written notice to the Administrative Agent promptly (and in any event within five Business Days) of: (i) any event or condition, including, but not limited to, any Reportable Event, that constitutes, or might reasonably lead to, a ERISA Event; (ii) with respect to any Multiemployer Plan, the receipt of notice as prescribed in ERISA or otherwise of any withdrawal liability assessed against a Credit Party or any ERISA Affiliate, or of a determination that any Multiemployer Plan is in reorganization or insolvent (both within the meaning of Title IV of ERISA); (iii) the failure to make full payment on or before the due date (including extensions) thereof of all amounts which a Credit Party or any ERISA Affiliate is required to contribute to each Plan pursuant to its

50

terms and as required to meet the minimum funding standard set forth in ERISA and the Code with respect thereto; or (iv) any change in the funding status of any Plan that could have a Material Adverse Effect; together, with a description of any such event or condition or a copy of any such notice and a statement by the chief financial officer of a Credit Party briefly setting forth the details regarding such event, condition, or notice, and the action, if any, which has been or is being taken or is proposed to be taken by a Credit Party or any ERISA Affiliate with respect thereto. Promptly upon request, the Credit Parties shall furnish the Administrative Agent and the Lenders with such additional information concerning any Plan as may be reasonably requested, including, but not limited to, copies of each annual report/return (Form 5500 series), as well as all schedules and attachments thereto required to filed with the Department of Labor and/or the Internal Revenue Service pursuant to ERISA and the Code, respectively, for each "plan year" (within the meaning of Section 3(39) of ERISA).

(j) Environmental.

(i) Subsequent to a notice from any Governmental Authority that would reasonably cause concern or during the existence of an Event of Default, and upon the written request of the Administrative Agent, the Credit Parties will furnish or cause to be furnished to the Administrative Agent, at the Credit Parties' expense, an updated report of an environmental assessment of reasonable scope, form and depth, including, where appropriate, invasive soil or groundwater sampling, by a consultant reasonably acceptable to the Administrative Agent as to the nature and extent of the presence of any Hazardous Materials on any Property and as to the compliance by the Credit Parties and with Environmental Laws. If the Credit Parties fail to deliver such an environmental report within seventy-five (75) days after receipt of such written request then the Administrative Agent may arrange for same, and the Credit Parties hereby grant to the Administrative Agent and its representatives access to the Properties and a license of a scope reasonably necessary to undertake such an assessment (including, where appropriate, invasive soil or groundwater sampling). The reasonable cost of any assessment arranged for by the Administrative Agent pursuant to this provision will be payable by the Credit Parties on demand.

(ii) Each of the Credit Parties and their Subsidiaries will conduct and complete all investigations, studies, sampling, and testing and all remedial, removal, and other actions necessary to address all Hazardous Materials on, from, or affecting any Property to the extent necessary to be in compliance with all Environmental Laws and all other applicable federal, state, and local laws, regulations, rules and policies and with the orders and directives of all Governmental Authorities exercising jurisdiction over such Property to the extent any failure would have or would be reasonably expected to have a Material Adverse Effect.

(k) Year 2000 Information. Upon the written request of the Administrative Agent, such information, assurances and documentation (including, but not limited to, the

51

results of internal and external audit reports prepared in connection therewith) reasonably acceptable to the Administrative Agent that the Credit Parties and their Subsidiaries will take all reasonable appropriate actions to prevent a Year 2000 Problem on or after January 1, 2000.

(l) Other Information. With reasonable promptness upon any such request, such other information regarding the Properties or regarding the business, assets or financial condition of the Credit Parties and their Subsidiaries as the Administrative Agent or any Lender may reasonably request.

7.2 Financial Covenants.

(a) Debt Service Coverage Ratio. The Debt Service Coverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to 1.50 to 1.0.

(b) Interest Coverage Ratio. The Interest Coverage Ratio, as of the end of each fiscal quarter of Credit Parties for the twelve month period ending on such date, shall be greater than or equal to 2.25 to 1.0.

(c) Fixed Charge Coverage Ratio. The Fixed Charge Coverage Ratio, as of the end of each fiscal quarter of the Credit Parties for the twelve month period ending on such date, shall be greater than or equal to 1.75 to 1.0.

(d) Net Worth. At all times, the Net Worth of the Credit Parties and their Subsidiaries on a consolidated basis shall be greater than or equal to the sum of (i) $700,000,000 plus (ii) 85% of the Net Cash Proceeds from all Equity Issuances (other than Equity Issuances referred to in the following subclause (iii)) plus (iii) 85% of the actual increase in Net Worth (if any) resulting from an Equity Issuance made in connection with an Incentive Stock Plan.

(e) Leverage Ratio. Prior to the earlier of (i) the Leverage Ratio, at the end of any fiscal quarter of the Credit Parties subsequent to September 30, 1998, being less than or equal to .55 to
1.0. or (ii) one year following the Closing Date, (the earlier of such dates referred to herein as the "Leverage Ratio Change Date") the Leverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to .625 to 1.0. Subsequent to the Leverage Ratio Change Date, the Leverage Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to .55 to 1.0.

(f) Unsecured Debt Ratio. The Unsecured Debt Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to the following ratios for the following periods:

(i) From the Closing Date to March 31, 1999, 1.6 to 1.0;
(ii) From April 1, 1999 to June 30, 1999, 1.8 to 1.0; and
(iii) From July 1, 1999 and thereafter 2.0 to 1.0.

52

(g) Secured Debt Ratio. The Secured Debt Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be less than or equal to the following ratios for the following periods:

(i) From the Closing Date to March 31, 1999, .40 to 1.0;
(ii) From April 1, 1999 to June 30, 1999, .35 to 1.0; and
(iii) From July 1, 1999 and thereafter .30 to 1.0.

(h) Unencumbered Cash Flow Ratio. The Unencumbered Cash Flow Ratio, as of the end of each fiscal quarter of the Credit Parties, shall be greater than or equal to the following ratios for the following periods:

(i) From the Closing Date to September 30, 1999, 1.5 to 1.0;

(ii) From October 1, 1999 to September 30, 2000, 1.6 to 1.0; and

(iii) From October 1, 2000 and thereafter, 1.65 to 1.0.

(i) Credit Party Assets. At all times, at least 50% of Total Assets must be owned by the Credit Parties.

7.3 Preservation of Existence.

Each of the Credit Parties will do all things necessary to preserve and keep in full force and effect its existence, rights, franchises and authority except as permitted by Section 8.4; provided that a Credit Party may dissolve if it has no assets at the time of dissolution. Without limiting the generality of the foregoing, BRT will do all things necessary to maintain its status as a REIT.

7.4 Books and Records.

Each of the Credit Parties will, and will cause its Subsidiaries to, keep complete and accurate books and records of its transactions in accordance with good accounting practices on the basis of GAAP (including the establishment and maintenance of appropriate reserves).

7.5 Compliance with Law.

Each of the Credit Parties will, and will cause its Subsidiaries to, comply in all material respects with all material laws, rules, regulations and orders, and all applicable material restrictions imposed by all Governmental Authorities, applicable to it and its property (including, without limitation, Environmental Laws and ERISA).

7.6 Payment of Taxes and Other Indebtedness.

Each of the Credit Parties will, and will cause its Subsidiaries to, pay, settle or discharge (a) all taxes, assessments and governmental charges or levies imposed upon it, or upon its income or profits, or upon any of its properties, before they shall become delinquent, (b) all lawful claims

53

(including claims for labor, materials and supplies) which, if unpaid, might give rise to a Lien upon any of its properties, and (c) except as prohibited hereunder, all of its other Indebtedness as it shall become due; provided, however, that a Credit Party or any of its Subsidiaries shall not be required to pay any such tax, assessment, charge, levy, claim or Indebtedness which is being contested in good faith by appropriate proceedings and as to which adequate reserves therefor have been established in accordance with GAAP, unless the failure to make any such payment (i) would give rise to an immediate right to foreclose on a Lien securing such amounts or (ii) would have a Material Adverse Effect.

7.7 Insurance.

Each of the Credit Parties will, and will cause its Subsidiaries to, at all times maintain in full force and effect insurance (including worker's compensation insurance, liability insurance, casualty insurance and business interruption insurance) in such amounts, covering such risks and liabilities and with such deductibles or self-insurance retentions as are in accordance with normal industry practice.

7.8 Maintenance of Assets.

Each of the Credit Parties will, and will cause its Subsidiaries to, maintain and preserve its Properties and all other assets in good repair, working order and condition, normal wear and tear excepted, and will make, or cause to be made, in the Properties and other assets, from time to time, all repairs, renewals, replacements, extensions, additions, betterments and improvements thereto as may be needed or proper, to the extent and in the manner customary for companies in similar businesses.

7.9 Performance of Obligations.

Each of the Credit Parties will, and will cause its Subsidiaries to, perform in all material respects all of its obligations under the terms of all material agreements, indentures, mortgages, security agreements or other debt instruments to which it is a party or by which it is bound.

7.10 Use of Proceeds.

The Credit Parties will use the proceeds of the Loans solely to acquire office and industrial properties (and in no event shall be used to repay Indebtedness of the Credit Parties or their Subsidiaries or for the development and construction of any Properties).

54

7.11 Audits/Inspections.

Upon reasonable notice and during normal business hours, each Credit Party will, and will cause its Subsidiaries to, permit representatives appointed by the Administrative Agent, including, without limitation, independent accountants, agents, attorneys and appraisers to visit and inspect such Credit Party's or other Combined Party's property, including, without limitation, the Properties, including its books and records, its accounts receivable and inventory, its facilities and its other business assets, and to make photocopies or photographs thereof and to write down and record any information such representative obtains and shall permit the Administrative Agent or its representatives to investigate and verify the accuracy of information provided to the Lenders, and to discuss all such matters with the officers, employees and representatives of the Credit Parties, their Subsidiaries and any other Combined Party.

7.12 Additional Credit Parties.

At any time a Person that is not a Credit Party becomes a Material Subsidiary of a Credit Party (other than, subject to Section 7.2(i), Excluded Material Subsidiaries or any entity which is subject to provisions in its charter documents that prohibit it from guaranteeing or becoming jointly and severally liable for the Indebtedness of others), the Borrowers shall notify the Administrative Agent and promptly thereafter (but in any event within 30 days after such Person becomes a Material Subsidiary of a Credit Party): (a) execute a Joinder Agreement in substantially the form of Exhibit 7.12 and (b) deliver such other documentation as the Administrative Agent may reasonably request in connection with the foregoing, including, without limitation, certified resolutions and other organizational and authorizing documents of such Person and favorable opinions of counsel to such Person (which shall cover, among other things, the legality, validity, binding effect and enforceability of the documentation referred to above), all in form, content and scope reasonably satisfactory to the Administrative Agent.

7.13 Interest Rate Protection Agreements.

If for any consecutive period of 30 days or more Eurodollar Loans constitute less than 75% of the aggregate principal amount of all outstanding Loans, then the Borrowers shall enter into interest rate protection agreements in form and substance acceptable to the Administrative Agent.

7.14 [Intentionally Omitted]

7.15 Construction.

55

With respect to any construction and development engaged in by the Combined Parties, the Credit Parties shall or shall cause another Person to:
(a) comply with all applicable regulations and codes and (b) complete all such construction and development in accordance with approved plans and specifications.

7.16 Acquisitions.

If at the time a Credit Party or one of its Subsidiaries anticipates making an Investment or an acquisition in excess of $20 million there are any Loans outstanding, then ten Business Days prior to such Credit Party (or Subsidiary) making such Investment or acquisition, the Borrowers shall provide the Administrative Agent written notice of such Investment or acquisition, together with a certification as to compliance with the terms of the Credit Agreement, including, without limitation, Section 7.2, after giving effect to such Investment or acquisition. If there are no Loans outstanding, the Borrowers shall give the Administrative Agent written notice of such Investment or acquisition by a Credit Party within five Business Days after the occurrence of such Investment or acquisition.

SECTION 8

NEGATIVE COVENANTS

Each Credit Party hereby covenants and agrees that so long as this Credit Agreement is in effect and until the Loans, together with interest, fees and other obligations hereunder, have been paid in full and the Commitments hereunder shall have terminated:

8.1 Indebtedness.

No Credit Party will, nor will it permit any Combined Party to, contract, create, incur, assume or permit to exist any Indebtedness, except:

(a) Indebtedness arising under this Credit Agreement and the other Credit Documents;

(b) Indebtedness owing from one Credit Party to another Credit Party;

(c) Indebtedness in respect of current accounts payable and accrued expenses incurred in the ordinary course of business; and

(d) Other Indebtedness as long as, prior to and after giving effect thereto, the Credit Parties are otherwise in compliance with the terms of this Credit Agreement.

8.2 Liens.

No Credit Party will, nor will it permit any of its Subsidiaries to, contract, create, incur, assume or permit to exist any Lien with respect to
(a) any Unsecured Properties, unless after giving affect to the creation of such Lien (i) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (ii) no Default or Event of Default or (b) any of its other Properties or any other assets of any kind (whether real or personal, tangible or intangible), whether now owned or after acquired, except for Permitted Liens.

56

8.3 Nature of Business.

No Credit Party will, nor will it permit any of its Subsidiaries to, alter the character of its business from that conducted as of the Closing Date or engage in any business other than the business conducted as of the Closing Date.

8.4 Consolidation and Merger.

No Credit Party will enter into any transaction of merger or consolidation or liquidate, wind up or dissolve itself (or suffer any liquidation or dissolution); provided that notwithstanding the foregoing provisions of this Section 8.4, (a) any Credit Party may be merged or consolidated with or into another Credit Party; provided that (i) if the transaction is between a Borrower and another Credit Party such Borrower is the continuing or surviving entity; (ii) the Administrative Agent is given prior written notice of such action, and the Credit Parties execute and deliver such documents, instruments and certificates as the Administrative Agent may reasonably request; and (iii) after giving effect thereto no Default or Event of Default exists; and (b) upon prior written notification to the Administrative Agent, as long as no Default or Event of Default exists, a Credit Party that has no assets and no revenues may be dissolved.

8.5 Sale or Lease of Assets.

(a) No Property may be conveyed, sold, leased, transferred or otherwise disposed of except (i) the Properties as indicated on Schedule 8.5 as long as such conveyance, sale, lease, transfer or other disposal occurs on or before March 31, 1999 or (ii) such other Properties if, after giving effect thereto, (A) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (B) no Default or Event of Default exists.

(b) No equity interest in any Credit Party may be conveyed, sold, transferred or otherwise disposed of except (i) the transfers of equity interests as indicated on Schedule 8.5 as long as such conveyance, sale, transfer or other disposal occurs on or before March 31, 1999 or (ii) such other equity interests if, after giving effect thereto (i) the Credit Parties are in compliance on a Pro Forma Basis with the financial covenants set forth in Section 7.2 and (ii) no Default or Event of Default exists; provided that any sale of an equity interest in a Borrower is subject to Section 9.1(i). Upon the sale of an equity interest in a Guarantor in conformance with the terms hereof, if after the sale of such equity interest such Guarantor is no longer a Material Subsidiary the Lenders agree to release such Guarantor from its obligations hereunder.

8.6 Advances, Investments and Loans.

Neither the Credit Parties nor any of their Subsidiaries will (a) make any Investments except for Permitted Investments or (b) so long as Brandywine Realty Services Partnership ("BRSP") is named in Section 2.5, make any Investments in BRSP (whether or not such Investment would otherwise be a Permitted Investment) or otherwise cause or permit BRSP to be a Subsidiary of any Credit Party.

57

8.7 Restricted Payments.

(a) No Credit Party will, directly or indirectly, declare or pay any dividends or make any other distribution upon any of its shares of beneficial interests or any shares of its capital stock of any class or with respect to any of its partnership interests that exceeds, in the aggregate, 90% of Funds From Operations earned subsequent to the Effective Date; provided that (i) any Subsidiary of a Credit Party may pay dividends or make distributions to its parent and (ii) BRT may pay such dividends as is necessary to maintain its status as a REIT.

(b) Except as permitted by Section 8.6 and except for the conversion of partnership units of BOP into cash or into shares of beneficial interest of BRT, no Credit Party will, nor will it permit any of its Subsidiaries to, at any time, for cash, purchase, redeem or otherwise acquire or retire or make any provisions for redemption, acquisition or retirement of any shares of its capital stock of any class or any warrants or options to purchase any such shares or with respect to any of its partnership interests.

8.8 Transactions with Affiliates.

No Credit Party will, nor will it permit any of its Subsidiaries to, enter into any transaction or series of transactions, whether or not in the ordinary course of business, with any officer, director, shareholder, Subsidiary or Affiliate other than on terms and conditions substantially as favorable as would be obtainable in a comparable arm's-length transaction with a Person other than an officer, director, shareholder, Subsidiary or Affiliate.

8.9 Fiscal Year; Organizational Documents.

No Credit Party will (a) change its fiscal year or (b) change its articles or certificate of incorporation, its bylaws, its declaration of trust, its limited liability company agreement, its articles or certificate of partnership or partnership agreement or any other organization or formation documents in any manner that would have an adverse effect of the rights of the Lenders under the Credit Documents; provided that (i) BRT may take such action, with prior written notice to the Administrative Agent, as is necessary to maintain its status as a REIT and (ii) the Credit Parties will provide prompt written notice of any change to be made in compliance with the terms of this Section 8.9.

8.10 Limitations.

No Credit Party will, nor will it permit any of its Subsidiaries to, directly or indirectly, create or otherwise cause, incur, assume, suffer or permit to exist or become effective any consensual encumbrance or restriction of any kind on the ability of any such Person to pay any Indebtedness owed to the Credit Parties.

58

8.11 Other Negative Pledges.

The Credit Parties will not enter into, assume or become subject to any agreement prohibiting or otherwise restricting the creation or assumption of any Lien upon its properties or assets, whether now owned or hereafter acquired, or requiring the grant of any security for such obligation if security is given for some other obligation except as provided under the Credit Documents.

8.12 Construction and Development.

The Credit Parties shall not engage in construction and development projects in which the total project costs of all such concurrent construction and development projects exceed, in the aggregate at any one time, 15% of Total Assets (it being understood and agreed for purposes of this Section 8.12 that a project shall be considered under construction and/or development until a certificate of occupancy therefore (or other similar certificate) shall have been issued by the applicable Governmental Authority).

SECTION 9

EVENTS OF DEFAULT

9.1 Events of Default.

An Event of Default shall exist upon the occurrence of any of the following specified events (each an "Event of Default"):

(a) Payment. The Credit Parties shall default in the payment
(i) when due of any principal amount of any Loans or any reimbursement obligation arising from drawings under Letters of Credit or (ii) within three days of when due of any interest on the Loans or any fees or other amounts owing hereunder, under any of the other Credit Documents or in connection herewith.

(b) Representations. Any representation, warranty or statement made or deemed to be made by any Credit Party herein, in any of the other Credit Documents, or in any statement or certificate delivered or required to be delivered pursuant hereto or thereto shall prove untrue in any material respect on the date as of which it was made or deemed to have been made.

(c) Covenants. Any Credit Party shall:

(i) default in the due performance or observance of any term, covenant or agreement contained in Sections 7.2, 7.3, 7.10, 7.11, 7.12, 7.14 or 8.1 through 8.12 inclusive; provided that if the Credit Parties fail to comply with Section 7.2(e) solely as a result of a change in the Capitalization Rate by the Lenders, a Default or an Event of Default shall not exist unless the Credit Parties

59

also fail to comply with Section 7.2(e) as of the last day of any subsequent fiscal quarter of the Credit Parties; or

(ii) default in the due performance or observance by it of any term, covenant or agreement contained in Section 7.1 and such default shall continue unremedied for a period of five Business Days after the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent; or

(iii) default in the due performance or observance by it of any term, covenant or agreement (other than those referred to in subsections (a), (b) or (c)(i) or
(ii) of this Section 9.1) contained in this Credit Agreement and such default shall continue unremedied for a period of at least 30 days after the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent.

(d) Other Credit Documents. (i) Any Credit Party shall default in the due performance or observance of any term, covenant or agreement in any of the other Credit Documents and such default shall continue unremedied for a period of at least 30 days after the earlier of a Credit Party becoming aware of such default or notice thereof given by the Administrative Agent, or (ii) any Credit Document (or any provision of any Credit Document, including Section 4 of the Credit Agreement) shall fail to be in full force and effect or any Credit Party shall so assert or any Credit Document shall fail to give the Administrative Agent and/or the Lenders the security interests, liens, rights, powers and privileges purported to be created thereby.

(e) Bankruptcy, etc. The occurrence of any of the following with respect to any Credit Party or any of its Subsidiaries (i) a court or governmental agency having jurisdiction in the premises shall enter a decree or order for relief in respect of any Credit Party or any of its Subsidiaries in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or appoint a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of any Credit Party or any of its Subsidiaries or for any substantial part of its property or ordering the winding up or liquidation of its affairs; or
(ii) an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect is commenced against any Credit Party or any of its Subsidiaries and such petition remains unstayed and in effect for a period of 60 consecutive days; or (iii) any Credit Party or any of its Subsidiaries shall commence a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or consent to the entry of an order for relief in an involuntary case under any such law, or consent to the appointment or taking possession by a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of such Person or any substantial part of its property or make any general assignment for the benefit of creditors; or (iv) any Credit Party or any of its Subsidiaries shall admit in writing its inability to pay its debts generally as they become due or any action shall be taken by such Person in furtherance of any of the aforesaid purposes.

60

(f) Defaults under Other Agreements. With respect to any recourse Indebtedness (other than Indebtedness outstanding under this Credit Agreement) of any Credit Party or any of its Subsidiaries in an aggregate principal amount in excess of $10,000,000, (i) a Credit Party or one of its Subsidiaries shall (A) default in any payment
(beyond the applicable grace period with respect thereto, if any) with respect to any such recourse Indebtedness, or (B) default (after giving effect to any applicable grace period) in the observance or performance of any term, covenant or agreement relating to such recourse Indebtedness or contained in any instrument or agreement evidencing, securing or relating thereto, or any other event or condition shall occur or condition exist, the effect of which default or other event or condition is to cause, or permit, the holder or holders of such recourse Indebtedness (or trustee or agent on behalf of such holders) to cause (determined without regard to whether any notice or lapse of time is required) any such recourse Indebtedness to become due prior to its stated maturity; or (ii) any such recourse Indebtedness shall be declared due and payable, or required to be prepaid other than by a regularly scheduled required prepayment prior to the stated maturity thereof; or (iii) any such Indebtedness shall mature and remain unpaid. With respect to any nonrecourse Indebtedness of any Credit Party or any of its Subsidiaries in an aggregate principal amount in excess of $20,000,000, a default in payment (whether by acceleration or otherwise) shall occur and such payment default is not cured or waived within sixty days after the occurrence thereof.

(g) Judgments. One or more judgments, orders, or decrees shall be entered against any one or more of the Credit Party involving a liability of $10,000,000 or more, in the aggregate (to the extent not paid or covered by insurance provided by a carrier who has acknowledged coverage), and such judgments, orders or decrees (i) are the subject of any enforcement proceeding commenced by any creditor or (ii) shall continue unsatisfied, undischarged and unstayed for a period ending on the first to occur of (A) the last day on which such judgment, order or decree becomes final and unappealable or (B) 20 days.

(h) ERISA Events. The occurrence of any of the following events or conditions, unless such event or occurrence would not have or be reasonably expected to have a Material Adverse Effect: (1) any "accumulated funding deficiency," as such term is defined in Section 302 of ERISA and Section 412 of the Code, whether or not waived, shall exist with respect to any Plan, or any lien shall arise on the assets of a Credit Party or any ERISA Affiliate in favor of the PBGC or a Plan; (2) an ERISA Event shall occur with respect to a Single Employer Plan, which is, in the reasonable opinion of the Administrative Agent, likely to result in the termination of such Plan for purposes of Title IV of ERISA; (3) an ERISA Event shall occur with respect to a Multiemployer Plan or Multiple Employer Plan, which is, in the reasonable opinion of the Administrative Agent, likely to result in (i) the termination of such Plan for purposes of Title IV of ERISA, or (ii) a Credit Party or any ERISA Affiliate incurring any liability in connection with a withdrawal from, reorganization of (within the meaning of Section 4241 of ERISA), or insolvency (within the meaning of Section 4245 of ERISA) of such Plan; or (4) any prohibited transaction (within the meaning of
Section 406 of ERISA or Section 4975 of the Code) or breach of fiduciary responsibility shall occur which may subject a Credit Party or any ERISA Affiliate to any liability under Sections 406, 409,
502(i), or 502(l) of ERISA or Section 4975 of the Code,

61

or under any agreement or other instrument pursuant to which a Credit Party or any ERISA Affiliate has agreed or is required to indemnify any person against any such liability.

(i) Ownership. There shall occur a Change of Control.

(j) Management. Gerard Sweeney is no longer active in the management of the Credit Parties and their Subsidiaries; provided that upon the death or disability of Gerard Sweeney, the Credit Parties and their Subsidiaries shall have six months to provide the Administrative Agent with substitute personnel as replacement; such substitute personnel to be acceptable to the Administrative Agent in its sole reasonable discretion.

(k) REIT Status. BRT does not maintain its REIT status or is no longer deemed to be a REIT.

(l) Senior Credit Agreement. An Event of Default (as defined in the Senior Credit Agreement) occurs.

9.2 Acceleration; Remedies.

Upon the occurrence of an Event of Default, and at any time thereafter unless and until such Event of Default has been waived in writing by the Required Lenders (or the Lenders as may be required hereunder), the Administrative Agent shall, upon the request and direction of Lenders whose aggregate Credit Exposure constitutes at least 66 2/3% of the Credit Exposure of all Lenders, by written notice to the Borrowers, take any of the following actions without prejudice to the rights of the Administrative Agent or any Lender to enforce its claims against the Borrowers, except as otherwise specifically provided for herein:

(a) Termination of Commitments. Declare the Commitments terminated whereupon the Commitments shall be immediately terminated.

(b) Acceleration of Loans. Declare the unpaid principal of and any accrued interest in respect of all Loans, any reimbursement obligations arising from drawings under Letters of Credit and any and all other indebtedness or obligations of any and every kind owing by a Credit Party to any of the Lenders hereunder to be due whereupon the same shall be immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby waived by the Credit Parties.

(c) Enforcement of Rights. Enforce any and all rights and interests created and existing under the Credit Documents, including, without limitation, all rights and remedies against a Guarantor and all rights of set-off.

62

Notwithstanding the foregoing, if an Event of Default specified in Section 9.1(e) shall occur, then the Commitments shall automatically terminate and all Loans, all accrued interest in respect thereof, all accrued and unpaid fees, and all other indebtedness or obligations owing to the Lenders hereunder shall immediately become due and payable without the giving of any notice or other action by the Administrative Agent or the Lenders, which notice or other action is expressly waived by the Credit Parties.

Notwithstanding the fact that enforcement powers reside primarily with the Administrative Agent, each Lender has, to the extent permitted by law, a separate right of payment and shall be considered a separate "creditor" holding a separate "claim" within the meaning of Section 101(5) of the Bankruptcy Code or any other insolvency statute.

9.3 Allocation of Payments After Event of Default.

Notwithstanding any other provisions of this Credit Agreement, after the occurrence and during the continuance of an Event of Default, all amounts collected or received by the Administrative Agent, or any Lender on account of amounts outstanding under any of the Credit Documents, shall be paid over or delivered as follows:

FIRST, to the payment of all reasonable out-of-pocket costs and expenses (including without limitation reasonable attorneys' fees) of the Administrative Agent in connection with enforcing the rights of the Lenders under the Credit Documents;

SECOND, to payment of any fees owed to the Administrative Agent;

THIRD, to the payment of all reasonable out-of-pocket costs and expenses, (including, without limitation, reasonable attorneys' fees) of each of the Lenders in connection with enforcing its rights under the Credit Documents;

FOURTH, to the payment of all accrued fees and interest payable to the Lenders hereunder;

FIFTH, to the payment of the outstanding principal amount of the Loans, pro rata, as set forth below;

SIXTH, to all other obligations which shall have become due and payable under the Credit Documents and not repaid pursuant to clauses "FIRST" through "FIFTH" above; and

SEVENTH, to the payment of the surplus, if any, to whoever may be lawfully entitled to receive such surplus.

In carrying out the foregoing, (a) amounts received shall be applied in the numerical order provided until exhausted prior to application to the next succeeding category; and (b) each of the Lenders shall receive an amount equal to its pro rata share (based on the proportion that the then outstanding Loans held by such Lender bears to the aggregate then outstanding Loans) of amounts available to be applied pursuant to clauses "THIRD", "FOURTH," "FIFTH," and "SIXTH" above.

63

SECTION 10

AGENCY PROVISIONS

10.1 Appointment.

Each Lender hereby designates and appoints NationsBanc Mortgage Capital Corp. as Administrative Agent of such Lender to act as specified herein and the other Credit Documents, and each such Lender hereby authorizes the Administrative Agent, as the agent for such Lender, to take such action on its behalf under the provisions of this Credit Agreement and the other Credit Documents and to exercise such powers and perform such duties as are expressly delegated by the terms hereof and of the other Credit Documents, together with such other powers as are reasonably incidental thereto. Notwithstanding any provision to the contrary elsewhere herein and in the other Credit Documents, the Administrative Agent shall not have any duties or responsibilities, except those expressly set forth herein and therein, or any fiduciary relationship with any Lender, and no implied covenants, functions, responsibilities, duties, obligations or liabilities shall be read into this Credit Agreement or any of the other Credit Documents, or shall otherwise exist against the Administrative Agent. The provisions of this Section are solely for the benefit of the Administrative Agent and the Lenders and none of the Credit Parties shall have any rights as a third party beneficiary of the provisions hereof. In performing its functions and duties under this Credit Agreement and the other Credit Documents, the Administrative Agent shall act solely as an agent of the Lenders and does not assume and shall not be deemed to have assumed any obligation or relationship of agency or trust with or for any Credit Parties.

10.2 Delegation of Duties.

The Administrative Agent may execute any of its duties hereunder or under the other Credit Documents by or through agents or attorneys-in-fact and shall be entitled to advice of counsel concerning all matters pertaining to such duties. The Administrative Agent shall not be responsible for the negligence or misconduct of any agents or attorneys-in-fact selected by it with reasonable care.

10.3 Exculpatory Provisions.

Neither the Administrative Agent nor any of its officers, directors, employees, agents, attorneys-in-fact or affiliates shall be (a) liable for any action lawfully taken or omitted to be taken by it or such Person under or in connection herewith or in connection with any of the other Credit Documents
(except for its or such Person's own gross negligence or willful misconduct)
or (b) responsible in any manner to any of the Lenders for any recitals, statements, representations or warranties made by any of the Credit Parties contained herein or in any of the other Credit Documents or in any certificate, report, document, financial statement or other written or oral statement referred to or provided for in, or received by the Administrative Agent under or in connection herewith or in connection with the other Credit Documents, or enforceability or sufficiency therefor of any of the other Credit Documents, or for any failure of the Credit Parties to

64

perform their obligations hereunder or thereunder. The Administrative Agent shall not be responsible to any Lender for the effectiveness, genuineness, validity, enforceability, collectibility or sufficiency of this Credit Agreement, or any of the other Credit Documents or for any representations, warranties, recitals or statements made herein or therein or made by the Credit Parties in any written or oral statement or in any financial or other statements, instruments, reports, certificates or any other documents in connection herewith or therewith furnished or made by the Administrative Agent to the Lenders or by or on behalf of the Credit Parties to the Administrative Agent or any Lender or be required to ascertain or inquire as to the performance or observance of any of the terms, conditions, provisions, covenants or agreements contained herein or therein or as to the use of the proceeds of the Loans or the use of the Letters of Credit or of the existence or possible existence of any Default or Event of Default or to inspect the properties, books or records of the Credit Parties. The Administrative Agent is not a trustee for the Lenders and owes no fiduciary duty to the Lenders.

10.4 Reliance on Communications.

The Administrative Agent shall be entitled to rely, and shall be fully protected in relying, upon any note, writing, resolution, notice, consent, certificate, affidavit, letter, cablegram, telegram, telecopy, telex or teletype message, statement, order or other document or conversation believed by it to be genuine and correct and to have been signed, sent or made by the proper Person or Persons and upon advice and statements of legal counsel (including, without limitation, counsel to any of the Credit Parties, independent accountants and other experts selected by the Administrative Agent with reasonable care). The Administrative Agent may deem and treat each Lender as the owner of its interests hereunder for all purposes unless a written notice of assignment, negotiation or transfer thereof shall have been filed with the Administrative Agent in accordance with Section 11.3(b). The Administrative Agent shall be fully justified in failing or refusing to take any action under this Credit Agreement or under any of the other Credit Documents unless it shall first receive such advice or concurrence of the Required Lenders as it deems appropriate or it shall first be indemnified to its satisfaction by the Lenders against any and all liability and expense which may be incurred by it by reason of taking or continuing to take any such action. The Administrative Agent shall in all cases be fully protected in acting, or in refraining from acting, hereunder or under any of the other Credit Documents in accordance with a request of the Required Lenders (or to the extent specifically provided in Section 11.6, all the Lenders) and such request and any action taken or failure to act pursuant thereto shall be binding upon all the Lenders (including their successors and assigns).

10.5 Notice of Default.

The Administrative Agent shall not be deemed to have knowledge or notice of the occurrence of any Default or Event of Default hereunder unless the Administrative Agent has received notice from a Lender or a Credit Party referring to the Credit Document, describing such Default or Event of Default and stating that such notice is a "notice of default." In the event that the Administrative Agent receives such a notice, the Administrative Agent shall give prompt notice thereof to the Lenders. The Administrative Agent shall take such action with respect to such Default or Event of Default as shall be reasonably directed by the Required Lenders.

65

10.6 Non-Reliance on Administrative Agent and Other Lenders.

Each Lender expressly acknowledges that neither the Administrative Agent, NMS nor any of their officers, directors, employees, agents, attorneys-in-fact or affiliates has made any representations or warranties to it and that no act by the Administrative Agent, NMS or any affiliate thereof hereinafter taken, including any review of the affairs of any Credit Party, shall be deemed to constitute any representation or warranty by the Administrative Agent or NMS to any Lender. Each Lender represents to the Administrative Agent and NMS that it has, independently and without reliance upon the Administrative Agent or NMS or any other Lender, and based on such documents and information as it has deemed appropriate, made its own appraisal of and investigation into the business, assets, operations, property, financial and other conditions, prospects and creditworthiness of the Credit Parties and made its own decision to make its Loans hereunder and enter into this Credit Agreement. Each Lender also represents that it will, independently and without reliance upon the Administrative Agent, NMS or any other Lender, and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit analysis, appraisals and decisions in taking or not taking action under this Credit Agreement, and to make such investigation as it deems necessary to inform itself as to the business, assets, operations, property, financial and other conditions, prospects and creditworthiness of the Credit Parties. Except for notices, reports and other documents expressly required to be furnished to the Lenders by the Administrative Agent hereunder, the Administrative Agent and NMS shall not have any duty or responsibility to provide any Lender with any credit or other information concerning the business, operations, assets, property, financial or other conditions, prospects or creditworthiness of the Credit Parties which may come into the possession of the Administrative Agent, NMS or any of their officers, directors, employees, agents, attorneys-in-fact or affiliates.

10.7 Indemnification.

The Lenders agree to indemnify the Administrative Agent in its capacity as such (to the extent not reimbursed by the Credit Parties and without limiting the obligation of the Credit Parties to do so), ratably according to their respective Commitments (or if the Commitments have expired or been terminated, in accordance with the respective principal amounts of outstanding Loans and Participation Interest of the Lenders), from and against any and all liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements of any kind whatsoever which may at any time (including without limitation at any time following payment in full of the Obligations) be imposed on, incurred by or asserted against the Administrative Agent in its capacity as such in any way relating to or arising out of this Credit Agreement or the other Credit Documents or any documents contemplated by or referred to herein or therein or the transactions contemplated hereby or thereby or any action taken or omitted by the Administrative Agent under or in connection with any of the foregoing; provided that no Lender shall be liable for the payment of any portion of such liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements resulting from the gross negligence or willful misconduct of the Administrative Agent. If any indemnity furnished to the Administrative Agent for any purpose shall, in the opinion of the Administrative Agent, be insufficient or become impaired, the Administrative Agent may call for additional indemnity and cease, or not commence, to do the acts indemnified against until such additional indemnity is furnished. The agreements in this Section

66

shall survive the payment of the Obligations and all other amounts payable hereunder and under the other Credit Documents.

10.8 Administrative Agent in Its Individual Capacity.

The Administrative Agent and its affiliates may make loans to, accept deposits from and generally engage in any kind of business with the Credit Parties as though the Administrative Agent were not the Administrative Agent hereunder. With respect to the Loans made and Letters of Credit issued and all obligations owing to it, the Administrative Agent shall have the same rights and powers under this Credit Agreement as any Lender and may exercise the same as though it were not the Administrative Agent, and the terms "Lender" and "Lenders" shall include the Administrative Agent in its individual capacity.

10.9 Successor Agent.

The Administrative Agent may, at any time, resign upon 20 days written notice to the Lenders. Upon any such resignation, the Required Lenders shall have the right to appoint a successor Administrative Agent. If no successor Administrative Agent shall have been so appointed by the Required Lenders, and shall have accepted such appointment, within 45 days after the notice of resignation, then the retiring Administrative Agent shall select a successor Administrative Agent provided such successor is a Lender hereunder or an Eligible Assignee. Upon the acceptance of any appointment as the Administrative Agent hereunder by a successor, such successor Administrative Agent shall thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Administrative Agent, and the retiring Administrative Agent shall be discharged from its duties and obligations as the Administrative Agent, as appropriate, under this Credit Agreement and the other Credit Documents and the provisions of this Section 10.9 shall inure to its benefit as to any actions taken or omitted to be taken by it while it was the Administrative Agent under this Credit Agreement.

SECTION 11

MISCELLANEOUS

11.1 Notices.

Except as otherwise expressly provided herein, all notices and other communications shall have been duly given and shall be effective (a) when delivered, (b) when transmitted via telecopy (or other facsimile device) to the number set out below, (c) the Business Day following the day on which the same has been delivered prepaid to a reputable national overnight air courier service, or (d) the third Business Day following the day on which the same is sent by certified or registered mail, postage prepaid, in each case to the respective parties at the address or telecopy numbers set forth on Schedule 11.1, or at such other address as such party may specify by written notice to the other parties hereto.

67

11.2 Right of Set-Off.

In addition to any rights now or hereafter granted under applicable law or otherwise, and not by way of limitation of any such rights, upon the occurrence of an Event of Default and the commencement of remedies described in Section 9.2, each Lender is authorized at any time and from time to time, without presentment, demand, protest or other notice of any kind (all of which rights being hereby expressly waived), to set-off and to appropriate and apply any and all deposits (general or special) and any other indebtedness at any time held or owing by such Lender (including, without limitation, branches, agencies or Affiliates of such Lender wherever located) to or for the credit or the account of any Credit Party against obligations and liabilities of such Credit Party to the Lenders hereunder, under the Notes, the other Credit Documents or otherwise, irrespective of whether the Administrative Agent or the Lenders shall have made any demand hereunder and although such obligations, liabilities or claims, or any of them, may be contingent or unmatured, and any such set-off shall be deemed to have been made immediately upon the occurrence of an Event of Default even though such charge is made or entered on the books of such Lender subsequent thereto. The Credit Parties hereby agree that any Person purchasing a participation in the Loans and Commitments hereunder pursuant to Section 11.3(c) or 3.8 may exercise all rights of set-off with respect to its participation interest as fully as if such Person were a Lender hereunder.

11.3 Benefit of Agreement.

(a) Generally. This Credit Agreement shall be binding upon and inure to the benefit of and be enforceable by the respective successors and assigns of the parties hereto; provided that none of the Credit Parties may assign and transfer any of its interests (except as permitted by Sections 8.4 or 8.5) without the prior written consent of the Lenders; and provided further that the rights of each Lender to transfer, assign or grant participations in its rights and/or obligations hereunder shall be limited as set forth below in subsections (b) and (c) of this Section 11.3. Notwithstanding the above (including anything set forth in subsections (b) and (c) of this Section 11.3), nothing herein shall restrict, prevent or prohibit any Lender from (A) pledging its Loans hereunder to a Federal Reserve Bank in support of borrowings made by such Lender from such Federal Reserve Bank, or (B) granting assignments or participations in such Lender's Loans and/or Commitments hereunder to its parent company and/or to any Affiliate of such Lender or to any existing Lender or Affiliate thereof.

(b) Assignments. In addition to the assignments permitted by
Section 11.3(a), each Lender may, with the prior written consent of the Borrowers and the Administrative Agent (provided that no consent of the Borrowers shall be required during the existence and continuation of an Event of Default), which consent shall not be unreasonably withheld or delayed, assign all or a portion of its rights and obligations hereunder pursuant to an assignment agreement substantially in the form of Exhibit 11.3 to one or more Eligible Assignees; provided that (i) any such assignment shall be in a minimum aggregate amount of $10,000,000 of the Commitments and in integral multiples of $1,000,000 above such amount (or the remaining amount of Commitments held by such Lender) and (ii) each such assignment shall be of a constant, not varying, percentage of all of the assigning Lender's

68

rights and obligations under the Commitment being assigned. Any assignment hereunder shall be effective upon satisfaction of the conditions set forth above and delivery to the Administrative Agent of a duly executed assignment agreement together with a transfer fee of $3,500 payable to the Administrative Agent for its own account. Upon the effectiveness of any such assignment, the assignee shall become a "Lender" for all purposes of this Credit Agreement and the other Credit Documents and, to the extent of such assignment, the assigning Lender shall be relieved of its obligations hereunder to the extent of the Loans and Commitment components being assigned. The Borrowers agree that upon notice of any such assignment and surrender of the appropriate Note or Notes, it will promptly provide to the assigning Lender and to the assignee separate promissory notes in the amount of their respective interests substantially in the form of the original Note or Notes (but with notation thereon that it is given in substitution for and replacement of the original Note or Notes or any replacement notes thereof).

By executing and delivering an assignment agreement in accordance with this Section 11.3(b), the assigning Lender thereunder and the assignee thereunder shall be deemed to confirm to and agree with each other and the other parties hereto as follows: (i) such assigning Lender warrants that it is the legal and beneficial owner of the interest being assigned thereby free and clear of any adverse claim and the assignee warrants that it is an Eligible Assignee; (ii) except as set forth in clause (i) above, such assigning Lender makes no representation or warranty and assumes no responsibility with respect to any statements, warranties or representations made in or in connection with this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto, or the execution, legality, validity, enforceability, genuineness, sufficiency or value of this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto or the financial condition of any Credit Party or the performance or observance by any Credit Party of any of its obligations under this Credit Agreement, any of the other Credit Documents or any other instrument or document furnished pursuant hereto or thereto; (iii) such assignee represents and warrants that it is legally authorized to enter into such assignment agreement; (iv) such assignee confirms that it has received a copy of this Credit Agreement, the other Credit Documents and such other documents and information as it has deemed appropriate to make its own credit analysis and decision to enter into such assignment agreement; (v) such assignee will independently and without reliance upon the Administrative Agent, such assigning Lender or any other Lender, and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not taking action under this Credit Agreement and the other Credit Documents; (vi) such assignee appoints and authorizes the Administrative Agent to take such action on its behalf and to exercise such powers under this Credit Agreement or any other Credit Document as are delegated to the Administrative Agent by the terms hereof or thereof, together with such powers as are reasonably incidental thereto; and (vii) such assignee agrees that it will perform in accordance with their terms all the obligations which by the terms of this Credit Agreement and the other Credit Documents are required to be performed by it as a Lender.

(c) Participations. Each Lender may sell, transfer, grant or assign participations in all or any part of such Lender's interests and obligations hereunder; provided that (i) such

69

selling Lender shall remain a "Lender" for all purposes under this Credit Agreement (such selling Lender's obligations under the Credit Documents remaining unchanged) and the participant shall not constitute a Lender hereunder, (ii) no such participant shall have, or be granted, rights to approve any amendment or waiver relating to this Credit Agreement or the other Credit Documents except to the extent any such amendment or waiver would (A) reduce the principal of or rate of interest on or fees in respect of any Loans in which the participant is participating or increase any Commitments with respect thereto, or (B) postpone the date fixed for any payment of principal (including the extension of the final maturity of any Loan or the date of any mandatory prepayment), interest or fees in which the participant is participating, (iii) sub-participations by the participant (except to an Affiliate, parent company or Affiliate of a parent company of the participant) shall be prohibited and (iv) any such participations shall be in a minimum aggregate amount of $10,000,000 of the Commitments and in integral multiples of $1,000,000 in excess thereof. In the case of any such participation, the participant shall not have any rights under this Credit Agreement or the other Credit Documents (the participant's rights against the selling Lender in respect of such participation to be those set forth in the participation agreement with such Lender creating such participation) and all amounts payable by the Credit Parties hereunder shall be determined as if such Lender had not sold such participation; provided, however, that such participant shall be entitled to receive additional amounts under Sections 3.9, 3.12, 3.13 and 3.14 to the same extent that the Lender from which such participant acquired its participation would be entitled to the benefit of such cost protection provisions.

11.4 No Waiver; Remedies Cumulative.

No failure or delay on the part of the Administrative Agent or any Lender in exercising any right, power or privilege hereunder or under any other Credit Document and no course of dealing between the Credit Parties and the Administrative Agent or any Lender shall operate as a waiver thereof; nor shall any single or partial exercise of any right, power or privilege hereunder or under any other Credit Document preclude any other or further exercise thereof or the exercise of any other right, power or privilege hereunder or thereunder. The rights and remedies provided herein are cumulative and not exclusive of any rights or remedies which the Administrative Agent or any Lender would otherwise have. No notice to or demand on any Credit Party in any case shall entitle any Credit Party to any other or further notice or demand in similar or other circumstances or constitute a waiver of the rights of the Administrative Agent or the Lenders to any other or further action in any circumstances without notice or demand.

11.5 Payment of Expenses; Indemnification.

The Credit Parties agree to: (a) pay all reasonable out-of-pocket costs and expenses of (i) the Administrative Agent and NMS in connection with (A) the negotiation, preparation, execution and delivery, syndication and administration of this Credit Agreement and the other Credit Documents and the documents and instruments referred to therein (including, without limitation, the reasonable fees and expenses of Moore & Van Allen, special counsel to the Administrative Agent, and (B) any amendment, waiver or consent relating hereto and thereto including, but not limited to, any such amendments, waivers or consents resulting from or related to any work-out, renegotiation or restructure relating to the performance by the Credit Parties under this Credit

70

Agreement, and (ii) the Administrative Agent and the Lenders in connection with (A) enforcement of the Credit Documents and the documents and instruments referred to therein, including, without limitation, in connection with any such enforcement, the reasonable fees and disbursements of counsel for the Administrative Agent and each of the Lenders, and (B) any bankruptcy or insolvency proceeding of a Credit Party of any of its Subsidiaries, and (b) indemnify the Administrative Agent, NMS and each Lender, its officers, directors, employees, representatives and agents from and hold each of them harmless against any and all losses, liabilities, claims, damages or expenses incurred by any of them as a result of, or arising out of, or in any way related to, or by reason of, any investigation, litigation or other proceeding (whether or not the Administrative Agent, NMS or any Lender is a party thereto) related to (i) the entering into and/or performance of any Credit Document or the use of proceeds of any Loans (including other extensions of credit) hereunder or the consummation of any other transactions contemplated in any Credit Document, including, without limitation, the reasonable fees and disbursements of counsel incurred in connection with any such investigation, litigation or other proceeding (but excluding any such losses, liabilities, claims, damages or expenses to the extent incurred by reason of gross negligence or willful misconduct on the part of the Person to be indemnified),
(ii) any Environmental Claim and (iii) any claims for Non-Excluded Taxes.

11.6 Amendments, Waivers and Consents.

Neither this Credit Agreement nor any other Credit Document nor any of the terms hereof or thereof may be amended, changed, waived, discharged or terminated unless such amendment, change, waiver, discharge or termination is in writing and signed by the Required Lenders and the Credit Parties; provided that no such amendment, change, waiver, discharge or termination shall without the consent of each Lender affected thereby:

(a) extend the final maturity of any Loan or any portion thereof or postpone any other date fixed for any payment of principal (other than in accordance with Section 3.5(b));

(b) reduce the rate or extend the time of payment of interest (other than as a result of waiving the applicability of any post-default increase in interest rates) thereon or fees hereunder;

(c) reduce or waive the principal amount of any Loan;

(d) increase the Commitment of a Lender over the amount thereof in effect (it being understood and agreed that a waiver of any Default or Event of Default or a waiver of any mandatory reduction in the Commitments shall not constitute a change in the terms of any Commitment of any Lender);

(e) release a Borrower from its obligations, or all or substantially all of the Guarantors from their obligations, under the Credit Documents; provided that the Administrative Agent may release a Guarantor if an equity interest in a Material Subsidiary is transferred in accordance with Section 8.5 or equity is issued in accordance with Section 11.20;

71

(f) [Intentionally Omitted]

(g) amend, modify or waive any provision of this Section or
Section 3.4(a), 3.4(b), 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 5.2, 9.1(a), 11.2, 11.3 or 11.5;

(h) reduce any percentage specified in, or otherwise modify, the definition of Required Lenders; or

(i) consent to the assignment or transfer by a Borrower of any of its rights and obligations under (or in respect of) the Credit Documents.

If any amendment, waiver or consent with respect to the Credit Documents has been delivered in writing to a Lender by the Administrative Agent, and such amendment waiver or consent requires only the approval of the Required Lenders to become effective, then such Lender shall have ten Business Days from the date of receipt of such amendment, waiver or consent to respond thereto. Failure of a Lender to timely respond to such amendment, waiver or consent shall be deemed an approval by such Lender to such amendment, waiver or consent.

No provision of Section 2.2 may be amended or modified without the consent of the Issuing Lender. No provision of Section 10 may be amended or modified without the consent of the Administrative Agent.

Notwithstanding the fact that the consent of all the Lenders is required in certain circumstances as set forth above, (x) each Lender is entitled to vote as such Lender sees fit on any reorganization plan that affects the Loans or the Letters of Credit, and each Lender acknowledges that the provisions of
Section 1126(c) of the Bankruptcy Code supersedes the unanimous consent provisions set forth herein and (y) the Required Lenders may consent to allow a Credit Party to use cash collateral in the context of a bankruptcy or insolvency proceeding.

11.7 Counterparts/Telecopy.

This Credit Agreement may be executed in any number of counterparts, each of which when so executed and delivered shall be an original, but all of which shall constitute one and the same instrument. Delivery of executed counterparts by telecopy shall be as effective as an original and shall constitute a representation that an original will be delivered.

11.8 Headings.

The headings of the sections and subsections hereof are provided for convenience only and shall not in any way affect the meaning or construction of any provision of this Credit Agreement.

11.9 Defaulting Lender.

Each Lender understands and agrees that if such Lender is a Defaulting Lender then notwithstanding the provisions of Section 11.6 it shall not be entitled to vote on any matter requiring the consent of the Required Lenders or to object to any matter requiring the consent of all

72

the Lenders; provided, however, that all other benefits and obligations under the Credit Documents shall apply to such Defaulting Lender.

11.10 Survival of Indemnification and Representations and Warranties.

All indemnities set forth herein and all representations and warranties made herein shall survive the execution and delivery of this Credit Agreement, the making of the Loans, the issuance of the Letters of Credit and the repayment of the Loans and other obligations and the termination of the Commitments hereunder.

11.11 Governing Law; Jurisdiction.

(a) THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NORTH CAROLINA. Any legal action or proceeding with respect to this Agreement or any other Credit Document may be brought in the courts of the State of North Carolina in Mecklenburg County, or of the United States for the Western District of North Carolina and, by execution and delivery of this Credit Agreement, each Credit Party hereby irrevocably accepts for itself and in respect of its property, generally and unconditionally, the jurisdiction of such courts. Each Credit Party further irrevocably consents to the service of process out of any of the aforementioned courts in any such action or proceeding by the mailing of copies thereof by registered or certified mail, postage prepaid, to it at the address for notices pursuant to Section 11.1, such service to become effective 15 days after such mailing. Nothing herein shall affect the right of a Lender to serve process in any other manner permitted by law or to commence legal proceedings or to otherwise proceed against a Credit Party in any other jurisdiction. Each Credit Party agrees that a final judgment in any action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law; provided that nothing in this Section 11.11(a) is intended to impair a Credit Party's right under applicable law to appeal or seek a stay of any judgment.

(b) Each Credit Party hereby irrevocably waives any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions or proceedings arising out of or in connection with this Credit Agreement or any other Credit Document brought in the courts referred to in subsection (a) hereof and hereby further irrevocably waives and agrees not to plead or claim in any such court that any such action or proceeding brought in any such court has been brought in an inconvenient forum.

11.12 Waiver of Jury Trial.

EACH OF THE PARTIES TO THIS AGREEMENT HEREBY IRREVOCABLY WAIVES ALL

RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR

73

COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS CREDIT AGREEMENT, ANY OF THE OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY.

11.13 Time.

All references to time herein shall be references to Eastern Standard Time or Eastern Daylight Time, as the case may be, unless specified otherwise.

11.14 Severability.

If any provision of any of the Credit Documents is determined to be illegal, invalid or unenforceable, such provision shall be fully severable and the remaining provisions shall remain in full force and effect and shall be construed without giving effect to the illegal, invalid or unenforceable provisions.

11.15 Entirety.

This Credit Agreement together with the other Credit Documents represent the entire agreement of the parties hereto and thereto, and supersede all prior agreements and understandings, oral or written, if any, including any commitment letters or correspondence relating to the Credit Documents or the transactions contemplated herein and therein.

11.16 Binding Effect.

(a) This Credit Agreement shall become effective at such time when all of the conditions set forth in Section 5.1 have been satisfied or waived by the Lenders and it shall have been executed by the Credit Parties and the Administrative Agent, and the Administrative Agent shall have received copies hereof (telefaxed or otherwise) which, when taken together, bear the signatures of each Lender, and thereafter this Credit Agreement shall be binding upon and inure to the benefit of the Credit Parties, the Administrative Agent and each Lender and their respective successors and assigns. Upon this Credit Agreement becoming effective, the Existing Credit Agreement and the Existing Bridge Facility shall be deemed terminated and the Credit Parties and the lenders party to the Existing Credit Agreement or the Existing Bridge Facility shall no longer have any obligations thereunder (other than those obligations in the Existing Credit Agreement and the Existing Bridge Facility that expressly survive the termination of the Existing Credit Agreement).

(b) This Credit Agreement shall be a continuing agreement and shall remain in full force and effect until all Loans, interest, fees and other Obligations have been paid in full and all Commitments have been terminated. Upon termination, the Credit Parties shall have no further obligations (other than the indemnification provisions that survive) under the Credit Documents; provided that should any payment, in whole or in part, of the Obligations be rescinded or otherwise required to be restored or returned by the Administrative Agent or any Lender, whether as a result of any proceedings in bankruptcy

74

or reorganization or otherwise, then the Credit Documents shall automatically be reinstated and all amounts required to be restored or returned and all costs and expenses incurred by the Administrative Agent or Lender in connection therewith shall be deemed included as part of the Obligations.

11.17 Confidentiality.

Each Lender agrees that it will use its reasonable best efforts to keep confidential and to cause any representative designated under Section 7.11 to keep confidential any non-public information from time to time supplied to it under any Credit Document; provided, however, that nothing herein shall prevent the disclosure of any such information to (a) the extent a Lender in good faith believes such disclosure is required by Requirement of Law, (b) counsel for a Lender or to its accountants, (c) bank examiners or auditors or comparable Persons, (d) any affiliate of a Lender, (e) any other Lender, or any assignee, transferee or participant, or any potential assignee, transferee or participant, of all or any portion of any Lender's rights under this Agreement who is notified of the confidential nature of the information or (f) any other Person in connection with any litigation to which any one or more of the Lenders is a party; and provided further that no Lender shall have any obligation under this Section 11.17 to the extent any such information becomes available on a non-confidential basis from a source other than a Credit Party or that any information becomes publicly available other than by a breach of this Section 11.17.

11.18 [Intentionally Omitted]

11.19 Further Assurances.

The Credit Parties agree, upon the request of the Administrative Agent, to promptly take such actions as are necessary to carry out the intent of this Credit Agreement and the other Credit Documents.

11.20 Release of Guarantors.

If a Guarantor issues equity and as a result thereof such Guarantor is no longer a Material Subsidiary, then as long as after giving effect to the issuance of such equity the Credit Parties will be in compliance with Section 7.2(i), the Lenders agree to release such Guarantor from its obligations hereunder.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

75

Each of the parties hereto has caused a counterpart of this Credit Agreement to be duly executed and delivered as of the date first above written.

BORROWERS: BRANDYWINE REALTY TRUST,

---------                    a Maryland real estate investment trust


                             By: /s/ Gerard H. Sweeney
                                 ---------------------------

Name: Gerard H. Sweeney Title: President and Chief Executive Officer

BRANDYWINE OPERATING PARTNERSHIP,
L.P., a Delaware limited partnership

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its general
partner

By: /s/ Gerard H. Sweeney
    -----------------------
     Name:  Gerard H. Sweeney
     Title: President and Chief
            Executive Officer


GUARANTORS:            LC/N HORSHAM LIMITED PARTNERSHIP, a
----------             Pennsylvania limited partnership

                       By: Witmer Operating Partnership I, L.P., a Delaware
                           limited partnership, its general partner

                           By: Brandywine Witmer, L.L.C., a Pennsylvania
                               limited liability company, its general
                               partner

                               By: Brandywine Operating Partnership, L.P., a
                                   Delaware limited partnership, its sole
                                   member

                                   By: Brandywine Realty Trust, a
                                       Maryland real estate investment
                                       trust, its general partner


                       LC/N KEITH VALLEY LIMITED PARTNERSHIP I, a
                       Pennsylvania limited partnership

                       By: Witmer Operating Partnership I, L.P., a Delaware
                           limited partnership, its general partner

                           By: Brandywine Witmer, L.L.C., a Pennsylvania limited
                               liability company, its general partner

                               By: Brandywine Operating Partnership, L.P., a
                                   Delaware limited partnership, its sole
                                   member

                                   By: Brandywine Realty Trust, a
                                       Maryland real estate investment
                                       trust, its general partner


NICHOLS LANSDALE LIMITED PARTNERSHIP III,
a Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P.,
a Delaware limited partnership, its
general partner

By: Brandywine Witmer L.L.C., a
Pennsylvania limited liability
company, its general partner

By: Brandywine Operating
Partnership, L.P., a Delaware
limited partnership, its sole
member

By: Brandywine Realty Trust,
a Maryland real estate
investment trust, its
general partner

NEWTECH III LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P.,
a Delaware limited partnership, its
general partner

By: Brandywine Witmer L.L.C., a
Pennsylvania limited liability
company, its general partner

By: Brandywine Operating
Partnership, L.P., a
Delaware limited partnership,
its sole member

By: Brandywine Realty Trust,
a Maryland real estate
investment trust, its
general partner


WITMER OPERATING PARTNERSHIP I, L.P., a
Delaware limited partnership

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real
estate investment trust, its general
partner

NEWTECH IV LIMITED PARTNERSHIP, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner


C/N OAKLANDS LIMITED PARTNERSHIP I, a
Pennsylvania limited partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner

FIFTEEN HORSHAM, L.P., a Pennsylvania limited
partnership

By: Witmer Operating Partnership I, L.P., a Delaware
limited partnership, its general partner

By: Brandywine Witmer, L.L.C., a Pennsylvania
limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its sole
member

By: Brandywine Realty Trust, a
Maryland real estate investment
trust, its general partner


C/N LEEDOM LIMITED PARTNERSHIP II, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

C/N IRON RUN LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

C/N OAKLANDS LIMITED PARTNERSHIP III, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner

IRON RUN LIMITED PARTNERSHIP V, a
Pennsylvania limited partnership

By: Brandywine Operating Partnership, L.P., a
Delaware limited partnership, its general partner

By: Brandywine Realty Trust, a Maryland
real estate investment trust, its
general partner


BRANDYWINE TB I, L.P., a Pennsylvania limited partnership

By: Brandywine TB I, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.P., a Pennsylvania limited partnership

By: Brandywine TB II, L.L.C., a Pennsylvania limited liability ompany, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.P., a Pennsylvania limited partnership

By: Brandywine TB III, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TB VI, L.P., a Pennsylvania limited partnership

By: Brandywine TB VI, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE DOMINION, L.P., a Pennsylvania limited partnership

By: Brandywine Dominion, L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.P., a Pennsylvania limited partnership

By: Brandywine P.M., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE I.S., L.P., a Pennsylvania limited partnership

By: Brandywine I.S., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE CENTRAL, L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.P., a Pennsylvania limited partnership, its general partner

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


APPOP 2, L.P., a Delaware limited partnership

By: AAP Sub Three, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: AAPOP Umbrella, L.P., a Delaware limited partnership, one of its general partners

By: AAP Sub Two, Inc., a Delaware corporation, one of its general partners

By: Atlantic American Properties Trust, a Maryland real estate investment trust, its sole shareholder

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

By: Atlantic American Properties Trust, a Maryland real estate investment trust, one of its general partners

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole shareholder

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE F.C., L.P., a Pennsylvania limited partnership

By: Brandywine F.C., L.L.C., a Pennsylvania limited liability company, its general partner

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE REALTY PARTNERS, a Pennsylvania general partnership

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, one of its partners

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE ACQUISITIONS, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


BRANDYWINE MAIN STREET, LLC, a
Delaware limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, one of its members

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

By: Brandywine Acquisitions, LLC, a Delaware limited
liability company, one of its members

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real
estate investment trust, its general
partner

1100 BRANDYWINE, LLC, a Delaware limited liability
company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE LEASING, LLC, a Delaware limited
liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


BRANDYWINE TB I, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB II, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB III, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE TB VI, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE WITMER, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE DOMINION, L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE P.M., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE I.S., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner

BRANDYWINE F.C., L.L.C., a Pennsylvania limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate investment trust, its general partner


BRANDYWINE TRENTON URBAN RENEWAL, L.L.C., a Delaware
limited liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE DABNEY, L.L.C., a Delaware limited
liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE AXINN I, LLC, a Delaware limited
liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner

BRANDYWINE AXINN II, LLC, a Delaware limited
liability company

By: Brandywine Operating Partnership, L.P., a Delaware
limited partnership, its sole member

By: Brandywine Realty Trust, a Maryland real estate
investment trust, its general partner


APP SUB THREE, INC., a Delaware corporation

By: /s/ Gerard H. Sweeney
   ---------------------------------------------
        Gerard H. Sweeney
        President and Chief Executive Officer of
        each of the above-named entities


LENDERS:

NATIONSBANC MORTGAGE CAPITAL CORP., acting in its capacity as Administrative Agent and individually as a Lender

By: /s/ NationsBanc Mortgage Capital Corp.
    -------------------------------------------
Name:
     ------------------------------------------
Title:
      -----------------------------------------


EXHIBIT 10.4
FOURTH AMENDMENT TO AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
BRANDYWINE OPERATING PARTNERSHIP, L.P.

THIS FOURTH AMENDMENT, dated as of September 28, 1998 (the "Amendment"), amends the Amended and Restated Agreement of Limited Partnership Agreement (as heretofore amended to date, the "Partnership Agreement") of BRANDYWINE OPERATING PARTNERSHIP, L.P., a Delaware limited partnership (the "Partnership"). Capitalized terms used herein but not defined herein shall have the meanings given to such terms in the Partnership Agreement.

BACKGROUND

A. Pursuant to the Partnership Agreement, Brandywine Realty Trust (the "General Partner"), as the general partner of the Partnership, has the power and authority to issue additional Partnership Interests and Units in one or more newly created classes of Partnership Interests to persons on such terms and conditions as the General Partner may deem appropriate.

B. The General Partner, pursuant to the exercise of such power and authority and in accordance with the Partnership Agreement, has determined to execute this Amendment to the Partnership Agreement to create a new class of Partnership Interests designated as the Series A Preferred Mirror Units having designations, preferences and other rights which are substantially the same as the economic rights of the 7.25% Series A Cumulative Convertible Preferred Shares of the General Partner (the "Series A Preferred Shares") and to evidence the issuance of such additional Partnership Interests to the General Partner in exchange for the General Partner's contribution to the Partnership of the net proceeds of the sale of the Series A Preferred Shares.

NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained and other good and valuable consideration, the receipt, adequacy and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby amend the Partnership Agreement as follows:

1. In accordance with the Partnership Agreement, the Partnership Agreement is hereby amended to establish, and to issue to the General Partner, the Series A Preferred Mirror Units having the designations, preferences and other rights set forth below:

(a) Designation and Number. A class of Partnership Interests designated as Series A Preferred Mirror Units is hereby established. The number of Series A Preferred Mirror Units shall be 750,000 . The stated value of each Series A Preferred Mirror Unit shall be $50.00 (the "Stated Value").

(b) Rank. The Series A Preferred Mirror Units will, with respect to distribution rights and rights upon liquidation, dissolution or winding up of the Partnership, rank (a) senior to the Class A Units and all Partnership Interests ranking junior to the Series A


Preferred Mirror Units; (b) on a parity with all Partnership Interests issued by the Partnership the terms of which specifically provide that such Partnership Interests rank on a parity with the Series A Preferred Mirror Units including the Partnership Interests designated as Class B Preferred Units; and (c) junior to all Partnership Interests issued by the Partnership the terms of which specifically provide that such Partnership Interests rank senior to the Series A Preferred Mirror Units.

(c) Distributions.

(i) Pursuant to Section 6.1 of the Partnership Agreement, holders of Series A Preferred Mirror Units shall be entitled to receive, out of funds legally available therefor, cumulative quarterly cash distributions equal to the amount of the cumulative quarterly cash distributions payable on the Series A Preferred Shares. Such distributions shall be payable quarterly in arrears on or before the date on which distributions on the Series A Preferred Shares are payable (each a "Series A Preferred Mirror Unit Distribution Payment Date").

(ii) No distributions on Series A Preferred Mirror Units shall be authorized or paid or set apart for payment by the Partnership at such time as the terms and provisions of any agreement of the Partnership, including any agreement relating to its indebtedness, prohibits such authorization, payment or setting apart for payment or provides that such authorization, payment or setting apart for payment would constitute a breach thereof, or a default thereunder, or if such authorization or payment shall be restricted or prohibited by law.

(iii) Notwithstanding the foregoing, distributions with respect to the Series A Preferred Mirror Units will accrue whether or not the terms and provisions set forth in Section 1(c)(ii) at any time prohibit the current payment of distributions, whether or not there are funds legally available for such distributions and whether or not such distributions are authorized. Accrued but unpaid distributions on the Series A Preferred Mirror Units will accumulate as of the Series A Preferred Mirror Unit Distribution Payment Date on which they first become payable.

(iv) When distributions are not paid in full (or a sum sufficient for such full payment is not so set apart) upon the Series A Preferred Mirror Units and any other Partnership Interests ranking on a parity as to distributions with the Series A Preferred Mirror Units, all distributions authorized upon the Series A Preferred Mirror Units and any other Partnership Interests ranking on a parity as to distributions with the Series A Preferred Mirror Units shall be authorized pro rata so that the amount of distributions authorized per Partnership Unit of Series A Preferred Mirror Units and such other Partnership Interests shall in all cases bear to each other the same ratio that accrued distributions per Partnership Unit on the Series A Preferred Mirror Units and such other Partnership Interests (which shall not include any accrual in respect of unpaid distributions for prior distribution periods if such other Partnership Interests do not have a cumulative distribution) bear to each other. No interest, or sum of money in lieu of

-2-

interest, shall be payable in respect of any distribution payment or payments on Series A Preferred Mirror Units which may be in arrears.

(v) Except as provided in Section
1(c)(iv), unless full cumulative distributions on the Series A Preferred Mirror Units have been or contemporaneously are authorized and paid or authorized and a sum sufficient for the payment thereof is set apart for payment for all past distribution periods and the then current distribution period, no distributions (other than in Partnership Interests ranking junior to the Series A Preferred Mirror Units as to distributions and upon liquidation) shall be authorized or paid or set aside for payment nor shall any other distribution be authorized or made upon the Class A Units or any other Partnership Interests ranking junior to or on a parity with the Series A Preferred Mirror Units as to distributions or upon liquidation, nor shall any Class A Units or any other Partnership Interests ranking junior to or on a parity with the Series A Preferred Shares as to distributions or upon liquidation be redeemed, purchased or otherwise acquired for any consideration (or any moneys be paid to or made available for a sinking fund for the redemption of any such units or other Partnership Interests) by the Partnership or any other entity controlled directly or indirectly by the Partnership (except by conversion into or exchange for Partnership Interests ranking junior to the Series A Preferred Mirror Units as to distributions and upon liquidation).

(vi) Holders of the Series A Preferred Mirror Units shall not be entitled to any distribution, whether payable in cash, property or Partnership Units in excess of full cumulative distributions on the Series A Preferred Mirror Units as described above. Any distribution payment made on the Series A Preferred Mirror Units shall first be credited against the earliest accrued but unpaid distribution due with respect to such Series A Preferred Mirror Units which remains payable.

(d) Liquidation Preference.

(i) Upon any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Partnership, the holders of Series A Preferred Mirror Units then outstanding are entitled to be paid out of the assets of the Partnership available for distribution to the Partners pursuant to Section 13.5(a) of the Partnership Agreement a liquidation preference equal to the Stated Value per Series A Preferred Mirror Unit, plus an amount equal to any accrued and unpaid distributions to the date of payment, before any distribution of assets is made to holders of Class A Units and GP Units or any other Partnership Interests that rank junior to the Series A Preferred Mirror Units as to liquidation rights.

(ii) In the event that, upon any such voluntary or involuntary liquidation, dissolution or winding up, the available assets of the Partnership are insufficient to pay the amount of the liquidating distributions on all outstanding Series A Preferred Mirror Units and the corresponding amounts payable on all other Partnership Interests ranking on a parity with the Series A Preferred Mirror Units in the distribution of assets, then such assets shall be

-3-

allocated among the Series A Preferred Mirror Units, as a class, and each class or series of such other such Partnership Interests, as a class, in proportion to the full liquidating distributions to which they would otherwise be respectively entitled.

(iii) After payment of the full amount of the liquidating distributions to which they are entitled, the holders of Series A Preferred Mirror Units will have no right or claim to any of the remaining assets of the Partnership.

(iv) The consolidation or merger of the Partnership with or into any other partnership, corporation, trust or entity or of any other partnership, corporation, trust or other entity with or into the Partnership, or the sale, lease or conveyance of all or substantially all of the property or business of the Partnership, shall not be deemed to constitute a liquidation, dissolution or winding up of the Partnership for purposes of this Section 1(d).

(e) Redemption. In connection with a redemption by the General Partner, pursuant to the exercise of a Cash Redemption Right (as defined in the General Partner's Declaration of Trust, as amended (the "Declaration of Trust")), of any or all of the Series A Preferred Shares, the Partnership shall provide cash to the General Partner for such purpose which shall be equal to redemption price of the Series A Preferred Shares to be redeemed and one Series A Preferred Mirror Unit shall be canceled with respect to each Series A Preferred Share so redeemed. In connection with a redemption by the General Partner, pursuant to the exercise of a Share Redemption Right (as defined in the Declaration of Trust), of any or all of the Series A Preferred Shares, the Partnership shall issue to the General Partner a number of Class A Units equal to the number of Common Shares issued in payment of the redemption price of the Class A Preferred Shares so redeemed, and one Series A Preferred Mirror Unit for each Series A Preferred Share so redeemed shall be canceled. From and after the date on which the Series A Preferred Shares are redeemed, the Series A Preferred Mirror Units so canceled shall no longer be outstanding and all rights hereunder, to distributions or otherwise, with respect to such Series A Preferred Mirror Units shall cease.

(f) Conversion. In connection with, and at the time of, the conversion of all or any Series A Preferred Shares into Common Shares, a number of Series A Preferred Mirror Units equal to the number of Series A Preferred Shares so converted shall be converted into a number of Class A Units equal to the number of Common Shares issuable upon such conversion.

(g) Allocations. Allocations of the Partnership's items of income, gain, loss and deduction shall be allocated among holders of Series A Preferred Mirror Units in accordance with Article VII of the Partnership Agreement.

-4-

2. Section 13.5(a) of the Partnership Agreement is amending redesignating subparagraph (iv) as subparagraph (v) and inserting the following new subparagraph (iv):

(iv) Next, to the holders of Partnership Interests that are entitled to any preference in distribution upon liquidation in accordance with the rights of any such class or series of Partnership Interests (and, within each such class or series, to each holder thereof pro rata based on the proportion of the total number of outstanding units of such class or series represented by such holder's units of such series or class); and

3. Section 7.2 of the Partnership Agreement is amending by inserting the following new subparagraph (g):

(g) Priority Allocation. All or a portion of the Net Income of the Partnership for the Fiscal Year, if any, shall be specially allocated to the Partners holding Series A Preferred Mirror Units and Series B Preferred Units in proportion to the cumulative distributions each has received pursuant to Sections 6.1, 6.2, and 13.5 hereof and, with respect to the Partners holding Series A Preferred Mirror Units, Section 1(c) and 1(d) of the Fourth Amendment to this Agreement or, with respect to Partners holding Series B Preferred Units, Section 1.C and 1.D of the Fifth Amendment to this Agreement, from the commencement of the Partnership to the end of such Fiscal Year, in an amount equal to the excess, if any, of the sum of (i) the aggregate Net Loss allocated to such Partners pursuant to Section 7.1(b) hereof for all prior Fiscal Years, if any, and (ii) the aggregate distributions received by such Partners pursuant to Sections 6.1, 6.2, and 13.5 of this Agreement and, with respect to Partners holding Series A Preferred Mirror Units, Section 1(c) and 1(d) of the Fourth Amendment to this Agreement or, with respect to Partners holding Series B Preferred Units,
Section 1C and 1D of the Fifth Amendment, from the commencement of the Partnership to the end of such Fiscal Year, over the aggregate items of Net Income allocated to such Partners pursuant to this Section 7.1(g) for all prior Fiscal Years.

4. Except as expressly set forth in this Amendment to the Partnership Agreement, the Partnership Agreement is hereby ratified and confirmed in each and every respect.

-5-

IN WITNESS WHEREOF, this Amendment to the Partnership Agreement has been executed and delivered as of the date first above written.

GENERAL PARTNER:

BRANDYWINE REALTY TRUST

By: /s/ Gerard H. Sweeney
    -----------------------------
Name:    Gerard H. Sweeney
Its:  President and Chief Executive Officer

-6-

EXHIBIT 10.5

FIFTH AMENDMENT TO AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
BRANDYWINE OPERATING PARTNERSHIP, L.P.

THIS FIFTH AMENDMENT, dated as of September 28, 1998 (the "Amendment"), amends the Amended and Restated Agreement of Limited Partnership Agreement (as heretofore amended to date, the "Partnership Agreement") of BRANDYWINE OPERATING PARTNERSHIP, L.P., a Delaware limited partnership (the "Partnership"). Capitalized terms used herein but not defined herein shall have the meanings given to such terms in the Partnership Agreement.

BACKGROUND

Pursuant to the Partnership Agreement, Brandywine Realty Trust (the "General Partner"), as the general partner of the Partnership, has the power and authority to issue additional Partnership Interests and Units in one or more newly created classes of Partnership Interests to persons on such terms and conditions as the General Partner may deem appropriate.

The General Partner, pursuant to the exercise of such power and authority and in accordance with the Partnership Agreement, has determined to execute this Amendment to the Partnership Agreement to create a new class of Partnership Interests to be designated as Series B Preferred Units and to evidence the issuance of such additional Partnership Interests and the admission of the other signatories hereto as Limited Partners of the Partnership in exchange for certain contributions of interests in real estate and real estate related assets that are being made to the Partnership on the date hereof pursuant to that certain Purchase and Contribution Agreement, dated as of August 6, 1998, among the Partnership and the other signatories thereto.

NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained and other good and valuable consideration, the receipt, adequacy and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby amend the Partnership Agreement as follows:

1. In accordance with the Partnership Agreement, the Partnership Agreement is hereby amended to establish, and to issue to the Persons set forth on Schedule A attached hereto, the Series B Preferred Units having the designations, preferences and other rights set forth below:

A. Designation and Number. A class of Partnership Interests designated as Series B Preferred Units is hereby established. The number of Series B Preferred Units shall be 1,950,000. The stated value of a Series B Preferred Unit shall be $50.00 (the "Stated Value").


B. Rank. The Series B Preferred Units shall, with respect to distribution rights and rights upon liquidation, dissolution or winding up of the Partnership, rank (i) senior to the Class A Units and to all Partnership Interests ranking junior to the Series B Preferred Units; (ii) on a parity with all Partnership Interests issued by the Partnership the terms of which specifically provide that such Partnership Interests rank on a parity with the Series B Preferred Units including the Partnership Interests designated as Series A Preferred Mirror Units; and (iii) junior to all Partnership Interests the terms of which specifically provide that such Partnership Interests rank junior to the Series B Partnership Units.

C. Distributions.

(i) Pursuant to Section 6.1 of the Partnership Agreement, the holders of Series B Preferred Units shall be entitled to receive, out of funds legally available for that purpose, cumulative distributions payable in cash in an amount per Series B Preferred Unit equal to the greater of (a) $0.9063 per quarter (equivalent to $3.625 per annum) or (b) the cash distributions paid or payable on the number of Class A Units, or portion thereof, into which a Series B Preferred Unit is convertible, in each case with appropriate proration for partial quarters. The amount referred in clause (b) of this subsection C(i) with respect to each Distribution Period (as defined in subsection J below) shall be determined as of the applicable Distribution Payment Date (as defined in subsection J below) by multiplying the number of Class A Units, or portion thereof calculated to the fourth decimal point, into which a Series B Preferred Unit would be convertible at the opening of business on such Distribution Payment Date (based on the Conversion Price (as defined in subsection G below) then in effect) by the quarterly cash distribution payable or paid by the Partnership for such Distribution Period in respect of a Class A Unit outstanding as of the record date for the payment of distributions on the Class A Units with respect to such Distribution Period or, if different, with respect to the most recent quarterly period for which distributions with respect to the Class A Units have been declared by the Partnership. Such distributions shall be cumulative from the Issue Date (as defined in subsection J below), whether or not in any Distribution Period or Periods such distributions shall be authorized or there shall be funds of the Partnership legally available for the payment of such distributions, and shall be payable quarterly in arrears on the Distribution Payment Dates, commencing on the first Distribution Payment Date after the Issue Date. Each such distribution shall be payable in arrears to the holders of record of the Series B Preferred Units, as they appear on the records of the Partnership at the close of business on a record date which shall be not less than 10 and not more than 60 days prior to the applicable Distribution Payment Date and shall be fixed by the Partnership, acting through the General Partner, to coincide with the record date for the regular quarterly distributions, if any, payable by the Partnership with respect to the Class A Units. Accumulated, accrued and unpaid distributions for any past Distribution Periods may be authorized and paid at any time, without reference to any regular Distribution Payment Date, to holders of record on a given date, which date shall not precede by more than 45 days the payment date thereof, as may be fixed by the Partnership, acting through the General Partner. The amount of accumulated, accrued and unpaid distributions on any Series B Preferred Unit, or fraction thereof,

-2-

at any date shall be the amount of any distributions thereon calculated at the applicable rate to and including such date, whether or not earned or authorized, which have not been paid in cash. The amount of distributions payable per Series B Preferred Unit for the initial Distribution Period, or any other period shorter or longer than a full Distribution Period, shall be computed ratably on the basis of four 90-day quarters and a 364-day year.

(ii) No distribution on the Series B Preferred Units shall be authorized or paid or set apart for payment by the Partnership at such time as the terms and provisions of any agreement of the Partnership, including any agreement relating to its indebtedness, prohibits such authorization, payment or setting apart for payment or provides that such authorization, payment or setting apart for payment would constitute a breach thereof, or a default thereunder, or if such authorization or payment shall be restricted or prohibited by law. No interest, or sum of money in lieu of interest, shall be payable in respect of any distribution payment or payments on the Series B Preferred Units which may be in arrears.

Notwithstanding the foregoing, distributions on the Series B Preferred Units shall accumulate whether or not any of the foregoing restrictions exist, whether or not there are funds legally available for the payment thereof and whether or not such distributions are authorized. Accumulated but unpaid distributions on the Series B Preferred Units shall not bear interest and holders of the Series B Preferred Units shall not be entitled to any distributions in excess of full cumulative distributions. Any distribution payment made on the Series B Preferred Units shall first be credited against the earliest accumulated but unpaid distribution due with respect to such Series B Preferred Units which remains payable.

(iii) Except as provided in subsection C(iv) below, no distributions (other than in Class A Units or Partnership Interests ranking junior to the Series B Preferred Units as to distributions and upon liquidation, dissolution or winding up of the Partnership) shall be authorized or paid or set aside for payment nor shall any other distribution be authorized or made upon the Class A Units or any other Partnership Interests ranking, as to distributions or upon liquidation, dissolution or winding up of the Partnership, on a parity with or junior to the Series B Preferred Units for any period unless full cumulative distributions have been or contemporaneously are authorized and paid or authorized and a sum sufficient for the payment thereof set apart for such payment on the Series B Preferred Units for all past distribution periods and the then current distribution period, nor shall any Class A Units, or any Partnership Interests ranking junior to or on a parity with the Series B Preferred Units as to distributions or upon liquidation, dissolution or winding up of the Partnership, be redeemed, purchased or otherwise acquired for any consideration (or any monies be paid to or made available for a sinking fund for the redemption of any such Partnership Interests) by the Partnership or any other entity controlled directly or indirectly by the Partnership (except by conversion into or exchange for Partnership Interests ranking junior to the Series B Preferred Units as to distributions and upon liquidation, dissolution or winding up of the Partnership or for the repurchase of Class A Units held by employees, officers or consultants of the

-3-

Partnership (or their permitted transferees) that are subject to restrictive share purchase agreements under which the Partnership has the option or obligation to repurchase such shares upon the occurrence of certain events, such as termination of employment).

(iv) When distributions are not paid in full (or a sum sufficient for such full payment is not so set apart) upon the Series B Preferred Units and any other Partnership Interests ranking on a parity as to distributions with the Series B Preferred Units, all distributions authorized with respect to the Series B Preferred Units and any other Partnership Interests ranking on a parity as to distributions with the Series B Preferred Units shall be authorized pro rata so that the amount of distributions authorized with respect to the Series B Preferred Units and such other Partnership Interests shall in all cases bear to each other the same ratio that accumulated distributions with respect to the Series B Preferred Units and such other Partnership Interests (which shall not include any accumulation in respect of unpaid distributions for prior distribution periods if such Partnership Interests do not have a cumulative distribution) bear to each other.

(v) Holders of Series B Preferred Units shall not be entitled to any distribution, whether payable in cash, property or shares, in excess of full cumulative distributions on the Series B Preferred Units as described above. Accumulated but unpaid distributions on the Series B Preferred Units will accumulate as of the Distribution Payment Date on which they first become payable.

D. Liquidation Preference.

(i) Upon any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Partnership, the holders of the Series B Preferred Units shall be entitled to receive out of the assets of the Partnership available for distribution to the Partners pursuant to Section 13.5(a) of the Partnership Agreement a liquidation preference equal to the Stated Value per Series B Preferred Unit, plus an amount equal to any accumulated and unpaid distributions to the date of payment, before any distribution of assets is made to holders of Class A Units, GP Units or any other Partnership Interests that rank junior to the Series B Preferred Units as to liquidation rights.

(ii) If upon any such voluntary or involuntary liquidation, dissolution or winding up of the Partnership, the assets of the Partnership are insufficient to pay the amount of such liquidating distributions on all outstanding Series B Preferred Units and the corresponding amounts payable on all other Partnership Interests ranking on a parity with the Series B Preferred Units in the distribution of assets, then such assets shall be allocated among the Series B Preferred Units, as a class, and each class or series of such other Partnership Interests, as a class, in proportion to the full liquidating distributions to which they would otherwise be respectively entitled.

-4-

(iii) Written notice of any such liquidation, dissolution or winding up of the Partnership, stating the payment date or dates when, and the place or places where, the amounts distributable in such circumstances shall be payable, shall be given by first class mail, postage pre-paid, not less than 30 nor more than 60 days prior to the payment date stated therein, to each record holder of the Series B Preferred Units at the respective addresses of such holders as the same shall appear on the records of the Partnership.

(iv) After payment of the full amount of the liquidating distributions to which they are entitled, the holders of Series B Preferred Units shall have no right or claim to any of the remaining assets of the Partnership.

(v) None of a consolidation or merger of the Partnership with or into any other partnership, corporation, trust or entity or of any other partnership, corporation, trust or other entity with or into the Partnership, or the sale, lease or conveyance of all or substantially all of the property or business of the Partnership shall be considered a liquidation, dissolution or winding up of the Partnership.

E. Redemption.

(i) Cash Redemption Right. On and after January 2, 2004 and, in addition, at any time after the Issue Date that the Current Market Price (as defined in subsection J below) of the Common Shares (as defined in subsection J below) has equaled or exceeded 120% of the Conversion Price for any 60 consecutive Trading Days (as defined in subsection J below), the Partnership, upon giving notice as provided below, may redeem the Series B Preferred Units, in whole or in part, for a redemption price per Series B Preferred Unit payable in cash equal to the Stated Value (the "Cash Redemption Right").

(ii) Class A Unit Redemption Right. If (i) at any time during the period commencing on the Issue Date and ending on January 1, 2004, the Current Market Price of the Common Shares has equaled or exceeded 120% of the Conversion Price for any 60 consecutive Trading Days or (ii) at any time on or after January 2, 2004, the Current Market Price of the Common Shares has equaled or exceeded 110% of the Conversion Price for 60 consecutive Trading Days, the Partnership, upon giving notice as provided below, may redeem the Series B Preferred Units, in whole or in part, for such number of Class A Units as equals the Stated Value of the Series B Preferred Units to be redeemed divided by the Conversion Price as of the opening of business on the date set for such redemption (the " Class A Unit Redemption Right").

(iii) Limitations on Redemption.

(a) The Partnership may exercise the Cash Redemption Right provided that the redemption price (other than the portion thereof consisting of accumulated

-5-

and unpaid distributions) is payable solely out of the sale proceeds of other Partnership Interests (or of rights or options to purchase Partnership Interests) or proceeds contributed to the Partnership from the sale of equity securities of the General Partner, and from no other source. For purposes of the preceding sentence, "equity securities" means any equity securities, shares, interest, participation or other ownership interests (however designated) and any rights (other than debt securities convertible into or exchangeable for equity securities) or options to purchase any of the foregoing.

(b) If fewer than all of the outstanding Series B Preferred Units are to be redeemed, the Series B Preferred Units to be redeemed shall be determined pro rata or by lot or in such other manner as determined by the Partnership, acting through the General Partner.

(c) Notwithstanding anything to the contrary contained herein, unless full cumulative distributions on all Series B Preferred Units shall have been or contemporaneously are authorized and paid or authorized and a sum sufficient for the payment thereof set apart for payment for all past distribution periods and the current distribution period, no Series B Preferred Units shall be redeemed unless all outstanding Series B Preferred Units are simultaneously redeemed or exchanged; provided, however, that the foregoing shall not prevent the purchase or acquisition of Series B Preferred Units pursuant to a purchase or exchange offer made on the same terms to holders of all outstanding Series B Preferred Units. In addition, unless full cumulative distributions on all outstanding Series B Preferred Units have been or contemporaneously are authorized and paid or authorized and a sum sufficient for the payment thereof set apart for payment for all past distributions periods and the then current distribution period, the Partnership shall not purchase or otherwise acquire directly or indirectly any Series B Preferred Units or any Partnership Interests ranking junior to or on a parity with the Series B Preferred Units as to distributions or upon liquidation, dissolution or winding up of the Partnership (except by conversion into or exchange for Partnership Interests ranking junior to the Series B Preferred Units as to distributions and upon liquidation, dissolution or winding up of the Partnership or for the repurchase of Class A Units held by employees, officers or consultants of the Partnership (or their permitted transferees) that are subject to restrictive share purchase agreements under which the Partnership has the option or obligation to repurchase such shares upon the occurrence of certain events, such as termination of employment).

(d) Immediately prior to any redemption of Series B Preferred Units, the Partnership shall pay, in cash, any accumulated and unpaid distributions through the Redemption Date (as defined in subsection E(iv) below), unless a Redemption Date falls after a Distribution Record Date and on or prior to the corresponding Distribution Payment Date, in which case each holder of Series B Preferred Units at the close of business on such Distribution Record Date shall be entitled to the distribution payable on such Series B Preferred Units on the corresponding Distribution Payment Date notwithstanding the redemption of such Series B Preferred Units on or prior to such Distribution Payment Date. Except as provided above, the

-6-

Partnership will make no payment or allowance for unpaid distributions, whether or not in arrears, on Series B Preferred Units for which a notice of redemption has been given.

(iv) Procedures for Redemption.

(a) Notice of redemption shall be mailed, not less than 30 nor more than 60 days, prior to the date fixed for redemption set forth in such notice (the "Redemption Date") to each holder of record of Series B Preferred Units to be redeemed, notifying such holder of the Partnership's election to redeem such Series B Preferred Units. Such notice shall mailed to such holder's address as the same appears on the records of the Partnership. No failure to give such notice or any defect therein or in the mailing thereof shall affect the validity of the proceedings for the redemption of any Series B Preferred Units except as to the holder to whom notice was defective or not given.

(b) In addition to any information required by law, such notice shall state: (1) the Redemption Date, (2) with respect to the Cash Redemption Right, the cash redemption price per Series B Preferred Unit and, with respect to the Class A Unit Redemption Right, the number of Class A Units to be issued with respect to each Series B Preferred Unit, (3) the number of Series B Preferred Units to be redeemed (and, if fewer than all the Series B Preferred Units are to be redeemed from such holder, the number of Series B Preferred Units to be redeemed from such holder), (4) the place or places where certificates for such Series B Preferred Units are to be surrendered for payment of the redemption price in cash, with respect to the Cash Redemption Right, and in certificates representing Class A Units, with respect to the Share Redemption Right, (5) that distributions on the Series B Preferred Units to be redeemed will cease to accumulate on such Redemption Date and (6) the date upon which the holder's conversion rights, if any, as to such Series B Preferred Units shall terminate.

(c) On or after the Redemption Date, each holder of Series B Preferred Units to be redeemed shall present and surrender the certificates evidencing its Series B Preferred Units to the Partnership at the place designated in the notice of redemption and thereupon the redemption price (in cash or Class A Units, as applicable) of such Series B Preferred Units shall be paid to or on the order of the person whose name appears on such certificate evidencing Series B Preferred Units as the owner thereof and each surrendered certificate shall be canceled. If fewer than all the Series B Preferred Units evidenced by any such surrendered certificate are to be redeemed, a new certificate shall be issued evidencing the unredeemed Series B Preferred Units.

(d) From and after the Redemption Date (unless the Partnership defaults in payment of the redemption price), all distributions on the Series B Preferred Units designated for redemption in such notice shall cease to accumulate and all rights of the holders thereof, except the right to receive the redemption price thereof (including all accumulated and

-7-

unpaid distributions up to the Redemption Date), shall cease and terminate and such Series B Preferred Units shall not thereafter be transferred (except with the consent of the General Partner) on the Partnership's books, and such Series B Preferred Units shall not be deemed to be outstanding for any purpose whatsoever. At its election, the Partnership, acting through its General Partner, prior to a Redemption Date, may irrevocably deposit the redemption price (including accumulated and unpaid distributions) of the Series B Preferred Units so called for redemption in trust for the holders thereof with a bank or trust company, in which case the redemption notice to holders of the Series B Preferred Units to be redeemed shall (i) state the date of such deposit, (ii) specify the office of such bank or trust company as the place of payment of the redemption price and (iii) require such holders to surrender the certificates evidencing such Series B Preferred Units at such place on or about the date fixed in such redemption notice (which may not be later than the Redemption Date) against payment of the redemption price (including all accumulated and unpaid distributions to the Redemption Date). At the close of business on a Redemption Date relating to the Partnership's Class A Unit Redemption Right, each holder of Series B Preferred Units to be so redeemed (unless the Trust defaults in the delivery of the Class A Units payable on such Redemption Date) shall be deemed to be the record holder of the number of Class A Units into which such Series B Preferred Units are to be so redeemed, regardless of whether such holder has surrendered the certificates evidencing the Series B Preferred Units. Any monies or Class A Units so deposited which remain unclaimed by the holders of the Series B Preferred Units at the end of two years after the Redemption Date shall be returned by such bank or trust company to the Trust.

F. Voting Rights.

(i) Holders of the Series B Preferred Units shall not have any voting rights, except as described below.

(ii) Whenever distributions on any Series B Preferred Units shall be in arrears for six or more quarterly periods (a "Preferred Distribution Default"), the holders of the outstanding Series B Preferred Units shall be entitled to elect two individuals (the "Preferred Unit Representatives"), which individuals shall be entitled to vote on their behalf on the matters set forth in subparagraph (iv) below. Such election shall be held at a special meeting called by the holders of record of at least 10% of the outstanding Series B Preferred Units.

(iii) If and when all accumulated distributions and the distribution for the current distribution period on the Series B Preferred Units shall have been paid in full or set aside for payment in full, the holders of Series B Preferred Units, acting through the Preferred Unit Representatives, shall be divested of the voting rights set forth in subsection F(iv) below (subject to revesting in the event of each and every Preferred Distribution Default) and the term of office of each Preferred Unit Representative so elected shall terminate. So long as a Preferred Distribution Default shall continue, any vacancy in the office of a Preferred Unit Representative may be filled by written consent of the Preferred Unit Representative remaining in office, or if there is no such remaining

-8-

representative, by vote of holders of a majority of the outstanding Series B Preferred Units. Any Preferred Unit Representative may be removed at any time with or without cause by the vote of, and shall not be removed otherwise than by the vote of, the holders of record of a majority of the outstanding Series B Preferred Units when they have the voting rights set forth in subsection F(iv) below.

(iv) For so long as a Preferred Distribution Default shall continue, any action to be taken by the Partnership at the direction of the General Partner and as to which the General Partner may act only upon authorization by its Board of Trustees (the "Board") may only be taken if such action is approved by a majority in number of the members of Board and the Preferred Unit Representatives voting together as a group.

(v) So long as any Series B Preferred Units remain outstanding, the Partnership shall not, without the affirmative vote or consent of the holders of at least two-thirds of Series B Preferred Units outstanding at the time, given in person or by proxy, either in writing or at a meeting, (a) authorize or create, or increase the authorized or issued amount of, any class or series of Partnership Interests ranking prior to Series B Preferred Units with respect to the payment of distributions or the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Partnership or reclassify any previously designated Partnership Interests into such Partnership Interests, or create, authorize or issue any obligation or Partnership Interests convertible or exchangeable into or evidencing the right to purchase any such Partnership Interests; or (b) amend, alter or repeal the provisions of the Partnership Agreement, whether by merger, consolidation or otherwise, or consummate a merger or consolidation involving the Partnership (any such merger or consolidation, an "Event"), so as to materially and adversely affect any right, preference, privilege or voting power of such Series B Preferred Units or the holders thereof; provided, however, with respect to the occurrence of any of the Events set forth in (b) above, the occurrence of any such Event shall not be deemed to materially adversely affect such rights, preferences, privileges or voting powers of holders of Series B Preferred Units if immediately after any such Event (i) in which the Partnership is the surviving entity, there are outstanding no equity securities ranking as to distribution rights or liquidation preference senior to the Series B Preferred Units other than the securities of the Partnership outstanding prior to such Event, (ii) in which the Partnership is not the surviving entity, as a result of the Event, the holders of the Series B Preferred Units receive shares of stock or other equity securities with preferences, rights and privileges substantially similar to the preferences, rights and privileges of the Series B Preferred Units and there are outstanding no shares of stock or other equity securities of the surviving entity ranking as to distribution rights or liquidation preference senior to the Series B Preferred Units other than the securities issued in respect of securities of the Partnership outstanding prior to such Event or (iii) whether or not the Partnership is the surviving entity, there are no outstanding equity securities of the Partnership or its successor (other than securities of the Partnership outstanding prior to such Event, or securities issued in respect of securities of the Partnership outstanding prior to such Event) ranking as to distribution rights or liquidation preference senior to the Series B Preferred Units; and

-9-

provided further that any increase in the amount of authorized Preferred Units or the creation or issuance of any class or series of Preferred Units (other than the Series B Preferred Units), in each case ranking on a parity with or junior to the Series B Preferred Units with respect to payment of distributions and the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Partnership, shall not be deemed to materially and adversely affect such rights, preferences, privilege or voting powers.

(vi) Notwithstanding anything to the contrary contained herein, the creation or issuance of any series of Preferred Units that is subject to mandatory redemption at a scheduled date or dates or that has the benefit of a sinking fund or that is subject to redemption at the option of the Partnership or the holder but that otherwise ranks on a parity with or junior to the Series B Preferred Units with respect to payment of distributions and the distribution of assets upon voluntary or involuntary liquidation, dissolution or winding up of the Partnership shall not require the affirmative vote or consent of all or any of the holders of the Series B Preferred Units.

(vii) The foregoing voting provisions shall not apply if, at or prior to the time when the act with respect to which such vote would otherwise be required shall be effected, all outstanding Series B Preferred Units shall have been converted, redeemed or called for redemption upon proper notice and sufficient funds or Class A Units, as applicable, shall have been deposited in trust to effect such redemption.

G. Conversion.

(i) Each whole (but not fractional) Series B Preferred Unit shall be convertible at any time, at the option of the holder thereof, into such number of Class A Units as is equal to the quotient that results from dividing (i) the sum of (X) the Stated Value plus (Y) accrued and unpaid distributions on such Class B Preferred Unit (other than such accrued and unpaid distributions that the General Partner elects to pay in cash at the time of conversion) by (ii) a conversion price (the "Conversion Price") of $28.00 per Series B Preferred Unit; provided, however, that if the average Current Market Price of the Common Shares during the 60-Trading Day period ending on December 31, 2003 is $23.00 or lower then the Conversion Price shall automatically be reduced from $28.00 to $26.50, subject to adjustment as described in subsection G(v) below; provided, further, that the right to convert Series B Preferred Units called for redemption pursuant to subsection E above shall terminate at the close of business on the Redemption Date, unless the Partnership shall default in making payment of the redemption price.

(ii) To exercise the conversion right, the holder of each Series B Preferred Unit to be converted shall surrender the certificate evidencing such Series B Preferred Unit, duly endorsed or assigned to the Partnership or in blank, at the principal office of the Partnership accompanied by written notice to the Partnership that the holder thereof elects to convert such Series B Preferred Unit. Unless the Class A Units issuable on conversion are to be issued in the same name

-10-

as the name in which such Series B Preferred Unit is registered, in which case the Partnership shall bear the related taxes, each Series B Preferred Unit surrendered for conversion shall be accompanied by instruments of transfer, in form satisfactory to the General Partner, duly executed by the holder or such holder's duly authorized attorney and an amount sufficient to pay any transfer or similar tax (or evidence reasonably satisfactory to the General Partner demonstrating that such taxes have been paid).

(iii) Each conversion shall be deemed to have been effected immediately prior to the close of business on the date on which the certificates for Series B Preferred Units shall have been surrendered and such notice (and if applicable, payment of an amount equal to the distribution payable on such shares) received by the Partnership as aforesaid, and the person or persons in whose name or names any certificate or certificates for Class A Units shall be issuable upon such conversion shall be deemed to have become the holder or holders of record of the Class A Units evidenced thereby at such time on such date, and such conversion shall be at the Conversion Price in effect at such time and on such date unless the unit transfer books of the Partnership shall be closed on that date, in which event such person or persons shall be deemed to have become such holder or holders of record at the close of business on the next succeeding day on which such unit transfer books are open, but such conversion shall be at the Conversion Price in effect on the date on which such shares have been surrendered and such notice received by the Partnership.

(iv) Holders of Series B Preferred Units at the close of business on a Distribution Record Date shall be entitled to receive the distribution payable on such Series B Preferred Units on the corresponding Distribution Payment Date notwithstanding the conversion of such Series B Preferred Units following such Distribution Record Date and prior to such Distribution Payment Date. However, certificates evidencing Series B Preferred Units surrendered for conversion during the period between the close of business on any Distribution Record Date and ending with the opening of business on the corresponding Distribution Payment Date (except shares converted after the issuance of a notice of redemption with respect to a Redemption Date during such period or coinciding with such Distribution Payment Date) shall be accompanied by payment of an amount equal to the distribution payable on such Series B Preferred Units on such Distribution Payment Date. A holder of Series B Preferred Units on a Distribution Record Date who (or whose transferee) tenders any such Series B Preferred Units for conversion into Class A Units on such Distribution Payment Date shall receive the distribution payable by the Partnership on such Series B Preferred Units on such date, and the converting holder need not include payment of the amount of such distribution upon surrender of certificates representing such Series B Preferred Units for conversion. Except as provided above, the Partnership shall make no payment or allowance for unpaid distributions, whether or not in arrears, on converted Series B Preferred Units or for distribution on the Class A Units that are issued upon such conversion.

As promptly as practicable after the surrender of certificates for Series B Preferred Units as aforesaid, the Partnership shall issue and shall deliver at such office to such holder, or on

-11-

such holder's written order, a certificate or certificates for the number of full Class A Units issuable upon the conversion of such Series B Preferred Units in accordance with the provisions of this Subsection G.

(v) Reclassification of Class A Units; Conversion Price Adjustment.

(a) (1) In the event of any adjustment to the number of outstanding Class A Units pursuant to Section 15.4 of the Partnership Agreement, the Conversion Price in effect at the opening of business on the day following the day on which such adjustment becomes effective shall be adjusted so that the holder of any Series B Preferred Units thereafter surrendered for conversion shall be entitled to receive the number of Class A Units that such holder would have been entitled to receive after the effective date of such adjustment had such Series B Preferred Units been converted immediately prior to the effective date of such adjustment.

(2) If the Partnership shall after the Issue Date (A) pay or make a distribution to all holders of its Class A Units and GP Units in Class A Units and GP Units, as applicable, (B) subdivide its outstanding Class A Units and GP Units into a greater number of units, (C) combine its outstanding Class A Units and GP Units into a smaller number of units or (D) issue any units by reclassification of its Class A Units and GP Units, in each case other than in connection with an adjustment under Section 15.4 of the Partnership Agreement (or any successor provision), the Conversion Price in effect at the opening of business on the day following the date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution or at the opening of business on the day following the day on which such subdivision, combination or reclassification becomes effective, as the case may be, shall be adjusted so that the holder of any Series B Preferred Units thereafter surrendered for conversion shall be entitled to receive the number of Class A Units that such holder would have owned or have been entitled to receive after the happening of any of the events described above had such Series B Preferred Units been converted immediately prior to the record date in the case of a distribution or the effective date in the case of a subdivision, combination or reclassification. An adjustment made pursuant to this subsection (2) shall become effective immediately after the opening of business on the day next following the record date (except as provided in subsection G(v)(d) below) in the case of a distribution and shall become effective immediately after the opening of business on the day next following the effective date in the case of a subdivision, combination or reclassification.

(b) (1) If the Trust shall issue after the Issue Date rights, options or warrants to all holders of Common Shares entitling them
(for a period expiring within 45 days after the record date mentioned below) to subscribe for or purchase Common Shares at a price per share less than the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such rights, options or warrants (any of the foregoing being hereinafter in this subsection (1) sometimes called the "Securities"), then the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the

-12-

Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution by (II) a fraction, the numerator of which shall be the sum of (A) the number of Common Shares outstanding on the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution and (B) the number of shares that the aggregate proceeds to the Trust from the issuance and the exercise of such rights, options or warrants for Common Shares would purchase at such Fair Market Value, and the denominator of which shall be the sum of (A) the number of Common Shares outstanding on the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution and (B) the number of additional Common Shares offered for subscription or purchase pursuant to such rights, options or warrants. Such adjustment shall become effective immediately upon the opening of business on the business day next following the record date fixed for the determination of shareholders entitled to receive such distribution (subject to paragraph G(v)(d) below). In determining whether any rights, options or warrants entitle the holders of Common Shares to subscribe for or purchase Common Shares at less than such Fair Market Value, there shall be taken into account any consideration received by the Trust upon issuance and upon exercise of such rights, options or warrants, the value of such consideration, if other than cash, to be determined by the General Partner, whose determination shall be conclusive. For the purposes of this subsection (1), the distribution of a Security, which is distributed not only to the holders of the Common Shares on the record date fixed for the determination of shareholders entitled to receive such distribution of such Security, but also is distributed or distributable with each Common Share issued or issuable upon redemption of each Class A Unit issued or issuable upon redemption or conversion of Series B Preferred Units after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection (1); provided that on the date, if any, on which a person receiving Common Shares issued or issuable upon redemption of Class A Units issued or issuable upon redemption or conversion of Series B Preferred Units would no longer be entitled to receive such Security with a Common Share (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (1) (and such day shall be deemed to be "the record date fixed for the determination of the shareholders entitled to receive such distribution" within the meaning of this subsection (1)). For the purposes of this subsection (1), if in connection with the distribution of a Security to the holders of the Common Shares an adjustment is made to the Conversion Price pursuant to subsection G(v)(a)(1) above that reflects the anti-dilution provisions of this subsection (1), no additional adjustment to the Conversion Price need be made pursuant to this subsection (1). In the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion Price (if previously adjusted on account of the issuance of such rights, options or warrants) shall be adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(2) If the Partnership shall issue after the Issue Date rights, options or warrants to all holders of Class A Units and GP Units entitling them (for a period expiring within 45 days after the record date mentioned below) to subscribe for or purchase Class

-13-

A Units or GP Units, as applicable, at a price per unit less than the fair market value per Class A Unit (as determined by the General Partner, the "Class A Unit Fair Market Value") on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such rights, options or warrants (any of the foregoing being hereinafter in this subsection (2) sometimes called the "Securities"), then the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution by (II) a fraction, the numerator of which shall be the sum of (A) the number of Class A Units and GP Units outstanding on the close of business on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution and (B) the number of Class A Units that the aggregate proceeds to the Partnership from the issuance and the exercise of such rights, options or warrants issued to holders of Class A Units and GP Units would purchase at such Class A Unit Fair Market Value, and the denominator of which shall be the sum of (A) the number of Class A Units and GP Units outstanding on the close of business on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution and (B) the number of additional Class A Units and GP Units offered for subscription or purchase pursuant to such rights, options or warrants. Such adjustment shall become effective immediately upon the opening of business on the business day next following the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution (subject to subsection G(v)(d) below). In determining whether any rights, options or warrants entitle the holders of Class A Units and GP Units to subscribe for or purchase Class A Units or GP Units, as applicable, at less than such Class A Unit Fair Market Value, there shall be taken into account any consideration received by the Partnership upon issuance and upon exercise of such rights, options or warrants, the value of such consideration, if other than cash, to be determined by the General Partner, whose determination shall be conclusive. For the purposes of this subsection (2), the distribution of a Security, which is distributed not only to the holders of the Class A Units and GP Units on the record date fixed for the determination of holders of Class A Unit and GP Units entitled to receive such distribution of such Security, but also is distributed or distributable with each Class A Unit delivered or deliverable to a person converting a Series B Preferred Unit or having a Series B Preferred Unit redeemed after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection
(2); provided that on the date, if any, on which a person converting a Series B Preferred Unit or having a Series B Preferred Unit redeemed would no longer be entitled to receive such Security with a Class A Unit (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (2) (and such day shall be deemed to be "the record date fixed for the determination of the holders of Class A Units and GP Units entitled to receive such distribution" within the meaning of this subsection (2)). For the purposes of this subsection (2), if in connection with the distribution of a Security to the holders of the Class A Units and GP Units an adjustment is made to the Conversion Price pursuant to subsection G(v)(a) above that reflects the anti-dilution provisions of this subsection (2), no additional adjustment to the Conversion Price need be made pursuant to this subsection (2). In

-14-

the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion Price (if previously adjusted on account of the issuance of such rights, options or warrants) shall be adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(c) (1) If the Trust shall distribute to all holders of its Common Shares any evidence of its indebtedness or assets (excluding cash distributions paid out of current or accumulated funds from operations to the extent the same results in a payment of at least equal cash distributions to the holders of Series B Preferred Units) or rights, options and warrants to subscribe for or purchase any of its securities (excluding those rights, options and warrants issued to all holders of Common Shares entitling them for a period expiring within 45 days after the record date referred to in subparagraph G(v)(b)(1) above to subscribe for or purchase Common Shares, which rights, options and warrants are referred to in and treated under subparagraph G(v)(b)(1) above) (any of the foregoing being hereinafter in this subsection (1) sometimes called the "Securities"), then in each case the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of shareholders entitled to receive such distribution by (II) a fraction, the numerator of which shall be the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such distribution less the then fair market value (as determined by the General Partner, whose determination shall be conclusive) of the portion of the shares of beneficial interest or assets or evidences of indebtedness so distributed or of such rights, options or warrants applicable to one Common Share, and the denominator of which shall be the Fair Market Value per Common Share on the record date fixed for the determination of shareholders entitled to receive such distribution. Such adjustment shall become effective immediately at the opening of business on the business day next following the record date fixed for the determination of shareholders entitled to receive such distribution (except as provided in subsection G(v)(d) below). For the purposes of this subsection (1), the distribution of a Security, which is distributed not only to the holders of the Common Shares on the record date fixed for the determination of shareholders entitled to such distribution of such Security, but also is distributed or distributable with each Common Share issued or issuable upon redemption of each Class A Unit issued or issuable upon redemption or conversion of Series B Preferred Units after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection (1); provided that on the date, if any, on which a person receiving Common Shares issued or issuable upon redemption of Class A Units issued or issuable upon redemption or conversion of Series B Preferred Units would no longer be entitled to receive such Security with a Common Share (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (1) (and such day shall be deemed to be "the record date fixed for the determination of the shareholders entitled to receive such distribution" within the meaning of within the meaning of this subsection (1)). In the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion Price (if previously

-15-

adjusted on account of the issuance of such rights, options or warrants) shall be adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(2) If the Partnership shall distribute to all holders of its Class A Units and GP Units any LP Units (other than Class A Units) or evidence of its indebtedness or assets (excluding cash distributions paid out of current or accumulated funds from operations to the extent the same results in a payment of at least equal cash distributions to the holders of Series B Preferred Units) or rights, options and warrants to subscribe for or purchase any LP Units (excluding those rights, options and warrants issued to all holders of Class A Units and GP Units entitling them for a period expiring within 45 days after the record date referred to in subsection G(v)(b)(2) above to subscribe for or purchase Class A Units or GP Units, as applicable, which rights, options and warrants are referred to in and treated under subparagraph G(v)(b)(2) above)(any of the foregoing being hereinafter in this subsection (2) sometimes called the "Securities"), then in each case the Conversion Price shall be adjusted so that it shall equal the price determined by multiplying (I) the Conversion Price in effect immediately prior to the close of business on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution by (II) a fraction, the numerator of which shall be the Class A Fair Market Value per Class A Unit on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution less the then fair market value (as determined by the General Partner, whose determination shall be conclusive) of the portion of the LP Units or assets or evidences of indebtedness so distributed or of such rights, options or warrants applicable to one Class A Unit, and the denominator of which shall be the Class A Unit Fair Market Value per Class A Unit on the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution (except as provided in subsection G(v)(d) below). Such adjustment shall become effective immediately at the opening of business on the business day next following the record date fixed for the determination of holders of Class A Units and GP Units entitled to receive such distribution. For the purposes of this subsection (2), the distribution of a Security, which is distributed not only to the holders of the Class A Units and GP Units on the record date fixed for the determination of holders of Class A Unit and GP Units entitled to receive such distribution of such Security, but also is distributed or distributable with each Class A Unit delivered or deliverable to a person converting a Series B Preferred Unit or having a Series B Preferred Unit redeemed after such determination date, shall not require an adjustment of the Conversion Price pursuant to this subsection (2); provided that on the date, if any, on which a person converting a Series B Preferred Unit or having a Series B Preferred Unit redeemed would no longer be entitled to receive such Security with a Class A Unit (other than as a result of the termination of all such Securities), a distribution of such Securities shall be deemed to have occurred, and the Conversion Price shall be adjusted as provided in this subsection (2) (and such day shall be deemed to be "the record date fixed for the determination of the holders of Class A Units and GP Units entitled to receive such distribution" within within the meaning of this subsection (2)). In the event that any such rights, options or warrants expire unexercised or are canceled prior to exercise, the Conversion

-16-

Price (if previously adjusted on account of the issuance of such rights, options or warrants) shall be adjusted so that it shall equal the price it would have been had such rights, options or warrants not been issued.

(d) In any case in which this subsection G(v) provides that an adjustment shall become effective on the date next following the record date for an event, the Partnership may defer until the occurrence of such event (A) issuing to the holder of any Series B Preferred Units converted after such record date and before the occurrence of such event the additional Class A Units issuable upon such conversion by reason of the adjustment required by such event over and above the Class A Units issuable upon such conversion before giving effect to such adjustment and (B) fractionalizing any Series B Preferred Units and/or paying to such holder any amount of cash in lieu of any fraction.

(e) Notwithstanding anything to the contrary contained in this subsection G(v), in the event that any event described in this subsection G(v) has a simultaneous effect on the Common Shares and the Class A Units, only one adjustment to the Conversion Price shall be made pursuant to this subsection G(v) so long as such adjustment refelects the intended operation of this subsection G(v). All decisions with respect to any adjustments to be made to the Conversion Price upon the occurrence of any such events shall be made by the General Partner in its reasonable discretion. In the case of any ambiguity or uncertainty in the application of any provision of this subsection G(v), the General Partner shall have the authority to interpret such provision in such manner as it in good faith reasonably believes correctly reflects the intended operation of such provision.

(f) No adjustment in the Conversion Price shall be required unless such adjustment would require a cumulative increase or decrease of at least 1% in such price; provided, however, that any adjustments that by reason of this subsection (f) are not required to be made shall be carried forward and taken into account in any subsequent adjustment until made; and provided, further, that any adjustment shall be required and made in accordance with the provisions of this subsection G(v) (other than this subsection (f)) not later than such time as may be required in order to preserve the tax-free nature of a distribution to the holders of Common Shares. Notwithstanding any other provisions of this subsection G(v), the Partnership shall not be required to make any adjustment of the Conversion Price as a result of the issuance of any Common Shares by the Trust pursuant to any plan providing for the reinvestment of distributions or interest payable on securities of the Trust and the investment of additional optional amounts in Common Shares under such plan. All calculations under this subsection G(v) shall be made to the nearest cent with ($.005 being rounded upward) or to the nearest one-tenth of a share (with .05 of a share being rounded upward), as the case may be. Anything in this subsection G to the contrary notwithstanding, the Partnership shall be entitled, to the extent permitted by law, to make such reductions in the Conversion Price, in addition to those required by this subsection G, as the General Partner in its discretion shall determine to be advisable in order that any share distributions, subdivision of shares,

-17-

reclassification or combination of shares, distribution of rights, options or warrants to purchase shares or securities, or a distribution of other assets (other than cash distributions) hereafter made by the Trust to its shareholders shall not be taxable.

(g) If the Partnership shall be a party to any transaction (including, without limitation, a merger or consolidation, sale of all or substantially all of the Partnership's assets or (each of the foregoing being referred to herein as a "Transaction"), in each case as a result of which Class A Units shall be converted into the right to receive shares, stock, securities or other property (including cash or any combination thereof), each Series B Preferred Unit which is not converted into the right to receive shares, stock, securities or other property in connection with such Transaction shall thereafter be convertible into the kind and amount of shares, stock, securities and other property (including cash or any combination thereof) receivable upon the consummation of such Transaction by a holder of that number of Class A Units into which one Series B Preferred Unit was convertible immediately prior to such Transaction. The Partnership shall not be a party to any Transaction unless the terms of such Transaction are consistent with the provisions of this subsection G(v), and it shall not consent or agree to the occurrence of any Transaction until the Partnership has entered into an agreement with the successor or purchasing entity, as the case may be, for the benefit of the holders of the Series B Preferred Units that will contain provisions enabling the holders of the Series B Preferred Units that remain outstanding after such Transaction to convert into the consideration received by holders of Class A Units at the Conversion Price in effect immediately prior to such Transaction. The provisions of this subsection G(v) shall similarly apply to successive Transactions.

H. Transfer Restrictions. The Series B Preferred Units are subject to the restrictions on transferability set forth in Article XI of the Partnership Agreement. In addition, except to Affiliates of the Admitted Partners (as defined below) or Lazard Freres Real Estate Investors, L.L.C. or upon the written consent of the General Partner (such consent not to be unreasonably withheld), none of the Series B Preferred Units, the Class A Units issuable upon conversion or redemption of the Series B Preferred Units (the "Underlying Class A Units"), nor the Common Shares issuable upon redemption of the Underlying Class A Units may be sold, assigned, exchanged, pledged or otherwise transferred prior to January 2, 2004; provided, however, that (notwithstanding the restriction contained in this sentence, but subject to the other restrictions on transfer applicable to such securities) the Series B Preferred Units, the Underlying Class A Units and the Common Shares issuable upon redemption of the Underlying Class A Units may be pledged to, and, upon default of the obligations pursuant to which such securities are pledged, if any, transferred to any lender (a "Lender") in connection with the financing needs of Lazard Freres Real Estate Investors, L.L.C. and its Affiliates, which Lender following any such transfer shall be subject to the transfer restrictions of this subsection. This subsection H shall not restrict a sale of the direct or indirect equity interests of the holders of the Series B Preferred Units. Any Series B Preferred Units, Underlying Class A Units and Common Shares issued upon redemption of Underlying Class A Units shall bear a restrictive legend evidencing the transfer restrictions set forth in this subsection H.

-18-

I. Allocations. Allocations of the Partnership's items of income, gain, loss and deduction shall be allocated among holders of Series B Preferred Units in accordance with Article VII of the Partnership Agreement.

J. Definitions.

"Common Shares" shall mean the common shares of beneficial interest, par value $.01 per share, of the Trust.

"Current Market Price" of publicly traded Common Shares or any other class of shares of beneficial interest or other security of the Trust or any other issuer for any day shall mean the last reported sales price, regular way, on such day, or, if no sale takes place on such day, the average of the reported closing bid and asked prices on such day, regular way, in either case as reported on the New York Stock Exchange ("NYSE") or, if such security is not listed or admitted for trading on the NYSE, on the principal national securities exchange on which such security is listed or admitted for trading or, if not listed or admitted for trading on any national securities exchange, on the NASDAQ National Market or, if such security is not quoted on such NASDAQ National Market, the average of the closing bid and asked prices on such day in the over-the-counter market as reported by NASDAQ or, if bid and asked prices for such security on such day shall not have been reported through NASDAQ, the average of the bid and asked prices on such day as furnished by any NYSE member firm regularly making a market in such security selected for such purpose by Partnership, acting through the General Partner.

"Distribution Payment Date" shall mean, with respect to each Distribution Period, the fifteenth day of January, April, July and October in each year, commencing, on October 15, 1998; provided, however, that if any Distribution Payment Date falls on any day other than a business day, the distribution payment due on such Distribution Payment Date shall be paid on the business day immediately following such Distribution Payment Date.

"Distribution Periods" shall mean quarterly distribution periods commencing on January 1, April 1, July 1 and October 1 of each year and ending on and including the day preceding the first day of the next succeeding Distribution Period (other than the initial Distribution Period, which shall commence on the Issue Date and end on and include September 30, 1998).

"Fair Market Value" shall mean the average of the daily Current Market Prices per Common Share during the five consecutive Trading Days selected by the General Partner commencing not more than 20 Trading Days before, and ending not later than, the earlier of the day in question and the day before the "ex" date with respect to the issuance or distribution requiring such computation. The term " 'ex' date," when used with respect to any issuance or distribution, means the first day on which the Common Shares trade regular way, without the right to receive such

-19-

issuance or distribution, on the exchange or in the market, as the case may be, used to determine that day's Current Market Price.

"Issue Date" shall mean the date on which Series B Preferred Units are first issued by the Partnership.

"Trading Day" shall mean any day on which the securities in question are traded on the NYSE or, if such securities are not listed or admitted for trading on the NYSE, on the principal national securities exchange on which such securities are listed or admitted or, if not listed or admitted for trading on any national securities exchange, on the NASDAQ National Market or, if such securities are not quoted on such NASDAQ National Market, in the applicable securities market in which the securities are traded.

The "Trust" means Brandywine Realty Trust, a Maryland real estate investment trust.

2. The Partnership Agreement is hereby amended to reflect the admission as a Limited Partners on the date hereof of the Persons set forth on Schedule A attached hereto (the "Admitted Partners") and the ownership by such Persons of the number of Series B Preferred Units listed opposite each Person's name on Schedule A. Attached as Schedule B is a list of the Partners of the Partnership prior to the admission of the Admitted Partners, together with the number and class of Partnership Interests owned by such partners.

3. The "Redemption Right" granted to holders of Class A Units in Article XV of the Partnership Agreement shall not be exercisable by the holders of the Class A Units issuable upon redemption or conversion of Series B Preferred Units until the first anniversary of the date hereof, except that if a Change of Control (as defined below) of the General Partner occurs, the foregoing restriction on exercise of the Redemption Right shall automatically terminate with respect to all of such Class A Units.

As used herein, the term "Change of Control" shall mean:

(i) the acquisition in one or more transactions by any "Person" (as the term person is used for purposes of Sections 13(d) or 14(d) of the Exchange Act) of "Beneficial ownership" (within the meaning of Rule 13d-3 promulgated under the Exchange Act) of twenty-five percent (25%) or more of the combined voting power of the General Partner's then outstanding voting securities (the "Voting Securities"), provided that for purposes of this clause (i) Voting Securities acquired directly from the General Partner by any Person shall be excluded from the determination of such Person's Beneficial ownership of Voting Securities (but such Voting Securities shall be included in the calculation of the total number of Voting Securities then outstanding); or

-20-

(ii) approval by shareholders of the General Partner of:

(A) a merger, reorganization or consolidation involving the General Partner if the shareholders of the General Partner immediately before such merger, reorganization or consolidation do not or will not own directly or indirectly immediately following such merger, reorganization or consolidation, more than fifty percent (50%) of the combined voting power of the outstanding voting securities of the General Partner resulting from or surviving such merger, reorganization or consolidation in substantially the same proportion as their ownership of the Voting Securities outstanding immediately before such merger, reorganization or consolidation; or

(B) a complete liquidation or dissolution of the General Partner; or

(C) an agreement for the sale or other disposition of all or substantially all of the assets of the General Partner; or

(iii) acceptance by shareholders of the General Partner of shares in a share exchange if the shareholders of the General Partner immediately before such share exchange do not or will not own directly or indirectly immediately following such share exchange more than fifty percent (50%) of the combined voting power of the outstanding voting securities of the entity resulting from or surviving such share exchange in substantially the same proportion as their ownership of the Voting Securities outstanding immediately before such share exchange.

4. By execution of this Amendment to the Partnership Agreement by the General Partner, the Admitted Partners agree to be bound by each and every term of the Partnership Agreement as amended from time to time in accordance with the terms of the Partnership Agreement. The General Partner confirms that the provisions in Section 18.1(a) of the Partnership Agreement shall apply to the Admitted Partners notwithstanding Section 18.7 of the Partnership Agreement.

5. On the date of this Amendment, each of the Admitted Partners shall execute and deliver to Brandywine Realty Trust an Irrevocable Proxy coupled with an Interest in the form set forth on Exhibit 1 hereto attached.

6. Except as expressly set forth in this Amendment to the Partnership Agreement, the Partnership Agreement is hereby ratified and confirmed in each and every respect.

-21-

IN WITNESS WHEREOF, this Amendment to the Partnership Agreement has been executed and delivered as of the date first above written.

GENERAL PARTNER:

BRANDYWINE REALTY TRUST

                                    By:/s/ Gerard H. Sweeney
                                       ----------------------------------------
                                    Name: Gerard H. Sweeny
                                    Its:  President and Chief Executive Officer


                              ADMITTED PARTNERS:

COMMONWEALTH ATLANTIC                    COMMONWEALTH ATLANTIC
OPERATING PROPERTIES INC.                LAND IV INC.

By:/s/ Murry N. Gunty                    By:/s/ Murry N. Gunty
   -------------------------                ---------------------------
   Name:  Murry N. Gunty                    Name:  Murry N. Gunty
   Title:  Vice President                   Title:  Vice President


COMMONWEALTH ATLANTIC                    COMMONWEALTH ATLANTIC
LAND II INC.                             DEVELOPMENT INC.



By:/s/ Murry N. Gunty                    By:/s/ Murry N. Gunty
   -------------------------                ---------------------------
   Name:  Murry N. Gunty                    Name:  Murry N. Gunty
   Title:  Vice President                   Title:  Vice President

COMMONWEALTH ATLANTIC
LAND COMPANY

By:/s/ Murry N. Gunty
   ------------------------
   Name:  Murry N. Gunty
   Title:  Vice President

-22-

SCHEDULE "A"

         ADMITTED                                           NUMBER OF SERIES B
         PARTNERS                                             PREFERRED UNITS
        ----------                                          -------------------

Commonwealth Atlantic Operating Properties Inc.                 1,140,527

Commonwealth Atlantic Land IV Inc.                                      0

Commonwealth Atlantic Land II Inc.                                283,731

Commonwealth Atlantic Development Inc.                             43,725

Commonwealth Atlantic Land Company                                 82,017


EXHIBIT 10.6

SIXTH AMENDMENT TO AMENDED AND RESTATED
AGREEMENT OF LIMITED PARTNERSHIP
OF
BRANDYWINE OPERATING PARTNERSHIP, L.P.

THIS SIXTH AMENDMENT, dated as of October 6, 1998 (the "Amendment"), further amends the Amended and Restated Agreement of Limited Partnership Agreement (as amended to date, the "Partnership Agreement") of BRANDYWINE OPERATING PARTNERSHIP, L.P., a Delaware limited partnership (the "Partnership"). Capitalized terms used herein but not defined herein shall have the meanings given such terms in the Partnership Agreement.

BACKGROUND

A. Pursuant to the Partnership Agreement, Brandywine Realty Trust (the "General Partner"), as the general partner of the Partnership, has the power and authority to issue additional Partnership Interests to persons on such terms and conditions as the General Partner may deem appropriate.

B. The General Partner, pursuant to the exercise of such power and authority and in accordance with the Partnership Agreement, has determined to execute this Amendment to the Partnership Agreement to evidence the issuance of additional Partnership Interests and the admission of the other signatories hereto as Limited Partners of the Partnership in exchange for certain contributions of interests in real estate and real estate related assets that are being made to the Partnership on the date hereof pursuant to a "contribution" agreement (relating to properties owned by persons and entities that include Donald E. Axinn and affiliates) among the Partnership and the other signatories thereto.

NOW, THEREFORE, in consideration of the mutual covenants and agreements herein contained and other good and valuable consideration, the receipt, adequacy and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby amend the Partnership Agreement as follows:

1. The Partnership Agreement is hereby amended to reflect the admission as a Limited Partner on the date hereof of the Persons set forth on Schedule A attached hereto (the "Admitted Partners") and the ownership by such Persons of the number of Class A Units listed opposite each Person's name on Schedule A. Attached as Schedule B is a list of the Partners of the Partnership prior to the admission of the Admitted Partners, together with the number and class of Partnership Interests owned by such partners.


2. The Partnership Interests issued hereby shall constitute Class A Units; provided that any distribution to be received by the Admitted Partners on the Class A Units issued to them on the date hereof on account of the fiscal quarter in which they are admitted to the Partnership shall be pro-rated to reflect the portion of the fiscal quarter of the Partnership for which the Admitted Partners held such Class A Units and shall not be pro-rata in accordance with their then Percentage Interests; provided further that the Redemption Right granted to holders of Class A Units in Article XV of the Partnership Agreement shall not be exercisable by the holders of the Class A Units issued on the date hereof to the Admitted Partners until the first anniversary of the date hereof, except that (i) if the holder of any such Class A Units dies, such holder's estate shall thereupon be permitted to exercise the Redemption Right with respect to all of such Class A Units held by it notwithstanding the foregoing restriction and (ii) if a Change of Control (as defined below) of the General Partner occurs, the foregoing restriction on exercise of the Redemption Right shall automatically terminate with respect to all of such Class A Units. Notwithstanding anything contained in the Partnership Agreement or this Amendment, if the holder of Class A Units exercises its Redemption Right and the General Partner or the holder reasonably believes that the issuance of Common Shares in satisfaction of the Redemption Right would require a notification and filing under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act"), the obligation of the Partnership and the General Partner to satisfy the Redemption Right may be suspended until applicable filings with the Federal Trade Commission and the Antitrust Division of the Department of Justice have been made and the applicable waiting periods have expired. The General Partner agrees to use commercially reasonable efforts to make any requisite filings under the HSR Act in order to promptly obtain expiration of the applicable waiting periods, and the Partnership and the applicable holder of Class A Units shall split equally any filing fees that may be payable under the HSR Act.

3. As used herein, the term "Change of Control" shall mean Change of Control" means:

(i) the acquisition in one or more transactions by any "Person" (as the term person is used for purposes of Sections 13(d) or 14(d) of the Exchange Act) of "Beneficial ownership" (within the meaning of Rule 13d-3 promulgated under the Exchange Act) of twenty-five percent (25%) or more of the combined voting power of the General Partner's then outstanding voting securities (the "Voting Securities"), provided that for purposes of this clause (i) Voting Securities acquired directly from the General Partner by any Person shall be excluded from the determination of such Person's Beneficial ownership of Voting Securities (but such Voting Securities shall be included in the calculation of the total number of Voting Securities then outstanding); or

(ii) approval by shareholders of the General Partner of:

-2-

(A) a merger, reorganization or consolidation involving the General Partner if the shareholders of the General Partner immediately before such merger, reorganization or consolidation do not or will not own directly or indirectly immediately following such merger, reorganization or consolidation, more than fifty percent (50%) of the combined voting power of the outstanding voting securities of the General Partner resulting from or surviving such merger, reorganization or consolidation in substantially the same proportion as their ownership of the Voting Securities outstanding immediately before such merger, reorganization or consolidation; or

(B) a complete liquidation or dissolution of the General Partner; or

(C) an agreement for the sale or other disposition of all or substantially all of the assets of the General Partner; or

(iii) acceptance by shareholders of the General Partner of shares in a share exchange if the shareholders of the General Partner immediately before such share exchange do not or will not own directly or indirectly immediately following such share exchange more than fifty percent (50%) of the combined voting power of the outstanding voting securities of the entity resulting from or surviving such share exchange in substantially the same proportion as their ownership of the Voting Securities outstanding immediately before such share exchange.

4. By execution of this Amendment to the Partnership Agreement by the General Partner, the Admitted Partners agree to be bound by each and every term of the Partnership Agreement as amended from time to time in accordance with the terms of the Partnership Agreement. The General Partner confirms that the provisions in Section 18.1(a) of the Partnership Agreement shall apply to the Admitted Partners notwithstanding Section 18.7 of the Partnership Agreement.

5. On the date of this Amendment, each of the Admitted Partners shall execute and deliver to Brandywine Realty Trust an Irrevocable Proxy coupled with an Interest in the form set forth on Exhibit 1 hereto attached.

-3-

6. Except as expressly set forth in this Amendment to the Partnership Agreement, the Partnership Agreement is hereby ratified and confirmed in each and every respect.

IN WITNESS WHEREOF, this Amendment to the Partnership Agreement has been executed and delivered as of the date first above written.

GENERAL PARTNER:

BRANDYWINE REALTY TRUST

By: /s/ Gerard H. Sweney
    ----------------------------------------
    Gerard H. Sweeney
    President and Chief Executive Officer

ADMITTED PARTNERS:

/s/ Donald E. Axinn
--------------------------------------------
Donald E. Axinn, individually

Donald E. Axinn, Inc.

By: /s/ Donald E. Axinn
    ----------------------------------------
Donald E. Axinn, President and Secretary

Morris Green, individually Arthur Eberstein, individually Marion Eberstein, individually Lennard Axinn, individually Estate of Theodore Geffner Howard Kantor, individually Estate of Irving Hirschman Leo Guthart, individually Gloria Kantor, individually Calvin Axinn, individually

By: /s/ Donald E. Axinn
    ----------------------------------------
    Donald E. Axinn, attorney in fact
    to each of the foregoing

-4-

                   SCHEDULE "A"

                                                     NUMBER OF
ADMITTED                                             PARTNERSHIP
PARTNERS                                             INTERESTS

Donald E. Axinn                                      928,651

Donald E. Axinn, Inc.                                      0

Morris Green                                          50,233

Arthur and Marion Eberstein, Joint Tenants             7,513

Lennard Axinn                                          2,156

Estate of Theodore Geffner                             1,973

Howard Kantor                                         31,505

Estate of Irving Hirschman                             1,488

Leo Guthart                                              876

Gloria Kantor                                         21,647

Richard Bernhard                                      40,927

Calvin Axinn                                          40,927

-5-

EXHIBIT 10.7

FIRST AMENDMENT TO CONTRIBUTION AGREEMENT

THIS FIRST AMENDMENT TO CONTRIBUTION AGREEMENT dated as of October 6, 1998 by and among BRANDYWINE OPERATING PARTNERSHIP, L.P., a Delaware limited partnership having an address at Newtown Square Corporate Campus, 16 Campus Boulevard, Suite 150, Newtown Square, PA 19073 (the "Partnership"), BRANDYWINE REALTY TRUST, a Maryland real estate investment trust having an address at Newtown Square Corporate Campus, 16 Campus Boulevard, Suite 150, Newtown Square, PA 19073 (the "Trust"), DONALD E. AXINN, having an address c/o Donald E. Axinn Companies, 131 Jericho Turnpike, Jericho, New York 11743 ("Axinn") and the other contributors (the "Other Contributors", and, together with Axinn, the "Contributors").

W I T N E S S E T H:

WHEREAS, the Partnership, the Trust and the Contributors entered into a certain contribution agreement made as of the 10th day of July, 1998 (the "Original Agreement") pursuant to which each of the Contributors agreed to sell or contribute and the Partnership agreed to acquire or accept all of such Contributors' right, title and interest in and to certain Property and Entity Interests (as such terms are defined in the Original Agreement);

WHEREAS, in order to delete the Property at 125 Jericho Turnpike as a Critical Property, the Original Agreement was modified pursuant to the terms of a certain letter agreement between the Partnership, the Trust and Axinn dated August 28, 1998 (the "Letter Agreement" and, together with the Original Agreement, the "Contribution Agreement");

WHEREAS, the parties hereto desire to further amend and modify the Contribution Agreement, subject to the terms and conditions hereinafter set forth.

NOW, THEREFORE, for ten ($10.00) dollars and other good and valuable consideration, the receipt and sufficiency which are hereby acknowledged, the parties, intending to be legally bound, agree as follows:

1. ASSUMED MORTGAGE LOANS. Notwithstanding anything contained in the Contribution Agreement to the contrary, the parties hereto agree that all of the Mortgage Loans shall be treated as Subject-to Mortgage Loans (and not as Assumed Mortgage Loans). All references in the Contribution Agreement to Assumed Mortgage Loans and the requirement that the Partnership assume the Assumed Mortgage Loans at the Closing are hereby deleted in their entirety.


2. 125-131 JERICHO TURNPIKE. Axinn, the Contributor of the 125-131 Jericho Turnpike, New York Property (the "Jericho Property"), the Partnership and the Trust hereby agree that the Closing for the Jericho Property shall occur simultaneously with the Old Country Road Closing. In addition, it is agreed between Axinn, the Partnership and the Trust that, from and after the Initial Closing to and including the Old Country Road Closing (the "Jericho Property Interim Period"): (a)Axinn shall receive all of the operating income for the Jericho Property and shall also be responsible for all operating expenses with respect thereto; and (b) during the Jericho Property Interim Period, Brandywine Realty Services Corporation ("BRSCO") shall manage the Jericho Property pursuant to the form of Management Agreement attached hereto as Exhibit A, subject to the right of BRSCO to terminate its obligations under such Management Agreement in accordance with its terms. The obligations of the Partnership and the Trust to acquire the Jericho Property are subject to compliance with the obligations of the applicable Contributors, and satisfaction of the closing conditions contained in the Contribution Agreement for the benefit of the Trust and Partnership, including without limitation, updated tenant estoppel certificates. In addition to the foregoing, leasing commissions, tenant improvements allowances, capital expenditures and lease proposals, amendments and modifications shall continue to be treated and subject to the Partnership's approval in accordance with Paragraphs 7(e) and 18 (e) of the Contribution Agreement.

3. 245 OLD COUNTRY ROAD. Axinn Ellipse Associates ("AEA"), the Contributor of the 245 Old Country Road, Melville, New York Property (the "245 OCR Property"), the Partnership and the Trust each hereby acknowledge that Citicorp, the tenant at the 245 OCR Property ("Citicorp"), has an option to purchase the 245 OCR Property at certain times during the term of its lease with AEA (the "Citicorp Purchase Option"). Axinn, on behalf of himself, AEA and the partners of AEA, hereby agrees that the restrictions on the sale or transfer of property in Paragraph 41(c) of the Contribution Agreement shall not apply in the event Citicorp exercises the Citicorp Purchase Option. The Partnership and the Trust hereby agree that, in the event Citicorp exercises the Citicorp Purchase Option, the Partnership and the Trust shall take commercially reasonable action (such as allowing AEA to guarantee additional debt of the Partnership and the Trust to

-2-

the extent the Trust and Partnership maintain such debt) in order to allow AEA to seek to continue to defer recognition of gain for federal and state income tax purposes in connection with the 245 OCR Property.

4. CONSIDERATION. The parties hereto agree that the last sentence of Paragraph 3(c) of the Contribution Agreement is deleted in its entirety and the following is inserted in lieu thereof:

"The parties agree that in all cases in which Participants of the same Contributor have elected to receive different forms of Consideration (ie. cash v. Units), such Contributor and Participants shall contribute, assign, transfer and convey to the Partnership (or its designee) and the Partnership shall accept from each Participant partner or member of the Contributor which owns such New York Property, all of such Participant's Entity Interest in and to such Contributor."

5. REMOVAL OF CERTAIN PROPERTIES. The parties acknowledge and agree that the properties located at 163-167 South Service Road, Plainview, New York, and 885 Waverly Avenue, Holtsville, New York, have been removed from the transactions provided for in the Contribution Agreement, and the references in the Contribution Agreement to such Properties, including the purchase price payable for them, are hereby deleted.

6. CONFIRMATION OF CERTAIN MATTERS.

(a) Axinn hereby represents and warrants that all documents executed and delivered by him at the Initial Closing being held on the date hereof under the Contribution Agreement in his capacity as attorney-in-fact have been executed and delivered by him pursuant to a valid and binding delegation of authority which remains in full force and effect.

(b) Axinn hereby represents and warrants that the following corrections are made to Schedule 1 to the Contribution Agreement: (i) the contents of the box at the fourth row and second column of page 6 shall be restated in its

-3-

entirety to read "Axinn-New Durham Associates, a New Jersey general partnership", and (ii) the contents of the box at the fourth row and fifth column of page 6 shall be restated in its entirety to read "78.02".

(c) Axinn hereby represents and warrants that the partnership that owns the Property known as 44 National Road, Edison, New Jersey is a general partnership notwithstanding the reference to such entity as a limited partnership in the agreement setting forth the partnership relationship among the partners. Axinn agrees to hold the Trust and Partnership harmless against any loss attributable to an entity being other than in the form set forth in the Schedules to the Contribution Agreement or being governed by any law other than the law set forth in the Schedules to the Contribution Agreement.

7. MAINTENANCE OF INSURANCE. The Contributors covenant and agree to maintain, and timely pay all premiums due in connection with, replacement-cost, all-risk casualty and comprehensive general liability insurance with respect to the 31 Commercial, 263 Old Country Road, 131 Jericho Turnpike, 125 Jericho Turnpike, 101 Paragon and 3 Paragon properties. All such insurance shall name Brandywine Operating Partnership, L.P. as an additional insured, as its interests may appear, with such coverage to be confirmed in a certificate of insurance to be issued to Buyer within 15 days of the Initial Closing. The aforesaid insurance may be canceled upon the transfer or contribution, as the case may be, of such property to Buyer.

8. CHANGE TO CERTAIN DATES. The dates November 1, 1998, February 1, 1999, May 1, 1999 and August 1, 1999 referenced in Paragraph 14(a)(v) of the Contribution Agreement are hereby changed to January 1, 1999, April 1, 1999, July 1, 1999 and October 1, 1999.

9. INDUSTRIAL SITE RECOVERY ACT UNDERTAKING. Notwithstanding anything to the contrary in the Contribution Agreement, with respect to the Property located at 44 National Road, Edison, New Jersey, Axinn covenants to use reasonable best efforts to obtain the appropriate approvals from the New Jersey Department of Environmental Protection ("NJDEP") under ISRA, which may take the form of one or more of the following: (i) NJDEP's approval of a Negative Declaration Affidavit; (ii) a so called "No Further Action" letter; (iii) NJDEP's approval of a De Minimis Quantity Exemption; (iv) NJDEP's approval of an

-4-

Expedited Review Application; (v) NJDEP's approval of a Remedial Action Workplan or Remediation Agreement; or (vi) such other approvals or determinations which may be available from NJDEP with respect to the applicable transaction. In addition to the foregoing, Section 11(b)(10) shall be amended to include the phrase "and all costs incurred and all liabilities arising in connection with the non-compliance by Seller with ISRA in connection with the transfer of 44 National Road" between the words "thereof" and "regardless" in the 26th line of
Section 11(b).

10. MISCELLANEOUS. All capitalized terms not defined herein shall have the same meaning ascribed to them in the Contribution Agreement. Except as modified herein, all of the terms and conditions of the Contribution Agreement shall remain unchanged and in full force and effect.

11. BINDING EFFECT. The terms and conditions of this First Amendment shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and assigns.

IN WITNESS WHEREOF, the parties have executed this First Amendment to Contribution Agreement as of the day and year first above written.

BRANDYWINE OPERATING PARTNERSHIP, L.P.
BY: BRANDYWINE REALTY TRUST,
Its General Partner

BY: /s/ Gerard H. Sweeney
    -----------------------------------
    Title: President and
    Chief Executive Officer

BRANDYWINE REALTY TRUST

BY: /s/ Gerard H. Sweeney
    -----------------------------------
    Title: President and
    Chief Executive Officer

(Signatures Continued)

-5-

      /s/ Donald E. Axinn
      -----------------------------------
      DONALD E. AXINN


     /s/ Donald E. Axinn
     ------------------------------------
     MORRIS L. GREEN
By:  Donald E. Axinn, his
     Attorney-in-Fact

AXINN AVENUE ASSOCIATES
AXINN ELLIPSE ASSOCIATES
AXINN-MELVILLE, LLP
AXINN EDISON ASSOCIATES
AXINN-NEW DURHAM ASSOCIATES
DONALD E. AXINN, L.L.C.
AXINN-BERNHARD ASSOCIATES

BY: /s/ Donald E. Axinn
    -------------------------------------
    Donald E. Axinn

-6-