NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2015

(unaudited)

NOTE 1. SIGNIFICANT ACCOUNTING POLICIES

We, the management of National Health Investors, Inc., ("NHI" or the "Company") believe that the unaudited condensed consolidated financial statements of which these notes are an integral part include all normal, recurring adjustments that are necessary to fairly present the condensed consolidated financial position, results of operations and cash flows of NHI in all material respects. The Condensed Consolidated Balance Sheet at December 31, 2014 has been derived from the audited consolidated financial statements at that date. We assume that users of these condensed consolidated financial statements have read or have access to the audited December 31, 2014 consolidated financial statements and Management's Discussion and Analysis of Financial Condition and Results of Operations and that the adequacy of additional disclosure needed for a fair presentation, except in regard to material contingencies, may be determined in that context. Accordingly, footnotes and other disclosures which would substantially duplicate those contained in our most recent Annual Report on Form 10-K for the year ended December 31, 2014 have been omitted. This condensed consolidated financial information is not necessarily indicative of the results that may be expected for a full year for a variety of reasons including, but not limited to, acquisitions and dispositions, changes in interest rates, rents and the timing of debt and equity financings. For a better understanding of NHI and its condensed consolidated financial statements, we recommend reading these condensed consolidated financial statements in conjunction with the audited consolidated financial statements for the year ended December 31, 2014 , which are included in our 2014 Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission, a copy of which is available at our web site: www.nhireit.com .

Principles of Consolidation - The accompanying consolidated financial statements include our accounts and the accounts of our wholly-owned subsidiaries, joint ventures, partnerships and consolidated variable interest entities ("VIE") where the Company controls the operating activities of the VIE, if any. All intercompany transactions and balances have been eliminated in consolidation. Net income is reduced by the portion of net income attributable to noncontrolling interests.

A VIE is broadly defined as an entity with one or more of the following characteristics: (a) the total equity investment at risk is insufficient to finance the entity's activities without additional subordinated financial support; (b) as a group, the holders of the equity investment at risk lack (i) the ability to make decisions about the entity's activities through voting or similar rights, (ii) the obligation to absorb the expected losses of the entity, or (iii) the right to receive the expected residual returns of the entity; or (c) the equity investors have voting rights that are not proportional to their economic interests, and substantially all of the entity's activities either involve, or are conducted on behalf of, an investor that has disproportionately few voting rights.

We apply Financial Accounting Standards Board ("FASB") guidance for our arrangements with variable interest entities ("VIEs") which requires us to identify entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of the VIE. In accordance with FASB guidance, management must evaluate each of the Company’s contractual relationships which creates a variable interest in other entities. If the Company has a variable interest and the entity is a VIE, then management must determine whether or not the Company is the primary beneficiary of the VIE. If it is determined that the Company is the primary beneficiary, NHI consolidates the VIE.

We identify the primary beneficiary of a VIE as the enterprise that has both: (i) the power to direct the activities of the VIE that most significantly impact the entity's economic performance; and (ii) the obligation to absorb losses or the right to receive benefits of the VIE that could be significant to the entity. We perform this analysis on an ongoing basis. At June 30, 2015 , we held an interest in 3 unconsolidated VIEs, consisting of 1) two construction mortgage notes receivable aggregating $48,501,000 from an unconsolidated VIE of whom we concluded that NHI was not the primary beneficiary; 2) a note receivable from, a guarantee on a letter of credit for, and a purchase option with, an unconsolidated VIE of whom we concluded that NHI was not the primary beneficiary; and 3) our joint venture in an operating company organized under provisions of the REIT Investment Diversification and Empowerment Act, (“RIDEA”) of which we concluded that NHI was not the primary beneficiary. See Note 3 for more information on our joint venture and Note 4 for information on the notes receivable and purchase option. Our direct support of the above VIEs has been limited to the transactions described herein, and any decision to furnish additional direct support would be at our discretion and not obligatory. We believe our exposure to loss as a result of our involvement with these unconsolidated VIEs would be limited to our carrying value of these investments and the amount of our commitment as guarantor under the letter of credit.

We apply FASB guidance related to investments in joint ventures based on the type of controlling rights held by the members' interests in limited liability companies that may preclude consolidation by the majority equity owner in certain circumstances in which the majority equity owner would otherwise consolidate the joint venture.

We structure our joint ventures to be compliant with the provisions of RIDEA, which permits NHI to receive rent payments through a triple-net lease between a property company and an operating company and is designed to give NHI the opportunity to capture additional value on the improving performance of the operating company through distributions to a taxable REIT subsidiary ("TRS"). Accordingly, the TRS holds our equity interest in an unconsolidated operating company, which we do not control, and provides an organizational structure that will allow the TRS to engage in a broad range of activities and share in revenues that would otherwise be non-qualifying income under the REIT gross income tests.

Equity-Method Investment - We report our TRS' investment in an unconsolidated entity, over whose operating and financial policies we have the ability to exercise significant influence but not control, under the equity method of accounting. Under this accounting method, our pro rata share of the entity's earnings or losses is included in our Condensed Consolidated Statements of Income. Additionally, we adjust our investment carrying amount to reflect our share of changes in an equity-method investee's capital resulting from its capital transactions.

The initial carrying value of our equity-method investment is based on the fair value of the net assets of the entity at the time we acquired our interest. We estimate fair values of the net assets of our equity-method investee based on discounted cash flow models. The inputs we use in these models are based on assumptions that are within a reasonable range of current market rates for the respective investments.

We evaluate our equity-method investment for impairment whenever events or changes in circumstances indicate that the carrying value of our investment may exceed the fair value. If it is determined that a decline in the fair value of our investment is not temporary, and if such reduced fair value is below its carrying value, an impairment is recorded. Determining fair value involves significant judgment. Our estimates consider all available evidence including the present value of the expected future cash flows discounted at market rates, general economic conditions and other relevant factors.

Noncontrolling Interest - We present the portion of any equity that we do not own in entities that we control (and thus consolidate) as noncontrolling interest and classify such interest as a component of consolidated equity separate from total NHI stockholders' equity in our Condensed Consolidated Balance Sheets. In addition, we exclude net income attributable to the noncontrolling interest from net income attributable to common shareholders in our Condensed Consolidated Statements of Income.

Use of Estimates - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Earnings Per Share - The weighted average number of common shares outstanding during the reporting period is used to calculate basic earnings per common share. Diluted earnings per common share assume the exercise of stock options using the treasury stock method, to the extent dilutive, and also incorporate the potential dilutive impact of our 3.25% convertible senior notes due 2021. We apply the treasury stock method to our convertible debt instruments, the effect of which is that conversion will not be assumed for purposes of computing diluted earnings per share unless the average share price of our common stock for the period exceeds the conversion price per share.

New Accounting Pronouncements - In February 2015 the FASB issued Amendments to the Consolidation Analysis , under ASU 2015-02, which is generally effective for fiscal years and interim periods beginning after December 15, 2015. ASU 2015-02 changes the consolidation analysis for all reporting entities. The changes primarily affect the consolidation of limited partnerships and their equivalents (e.g., limited liability corporations), the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships, as well as structured vehicles such as collateralized debt obligations. We have yet to determine the method by which ASU 2015-02 will be adopted in 2016, and we are continuing to study the effect that our eventual adoption of this standard will have on our reported financial position and results of operations, the extent of which cannot be reasonably estimable at this time.

In April 2015 the FASB issued ASU 2015-03, Interest-Imputation of Interest , whose primary effect is to mandate that debt issuance costs be reported in the balance sheet as a direct deduction from the face amount of the related liability. Debt issuance costs have previously been presented among assets on the balance sheet. The standard does not affect the recognition and measurement of debt issuance costs. The ASU is effective for public business entities for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Early adoption is permitted. We believe our eventual adoption of this standard will have no material effect on our reported financial position and results of operations.

NOTE 2. REAL ESTATE

As of June 30, 2015 , we owned 174 health care real estate properties located in 31 states and consisting of 105 senior housing communities, 64 skilled nursing facilities, 3 hospitals and 2 medical office buildings. Our senior housing properties include assisted living facilities, senior living campuses, independent living facilities, and entrance-fee communities. These investments (excluding pre-development costs of $486,000 and our corporate office of $910,000 ) consisted of properties with an original cost of approximately $ 1,982,683,000 , rented under triple-net leases to 24 lessees.

Holiday

As of June 30, 2015 , we leased 25 independent living facilities to NH Master Tenant, LLC, an affiliate of Holiday Retirement ("Holiday"). The master lease term of 17 years began in December 2013 and provides for 2015 cash rent of $33,351,000 plus annual escalators of 4.5% in 2016 and 2017 and a minimum of 3.5% each year thereafter.

Of our total revenues, $10,954,000 ( 19% ) and $10,954,000 ( 25% ) were derived from Holiday for the three months ended June 30, 2015 and 2014 , including $2,616,000 and $2,975,000 in straight-line rent, respectively. For the six months ended June 30, 2015 and 2014 , of our total revenues, $21,908,000 ( 20% ) and $21,908,000 ( 25% ) were derived from Holiday including $5,233,000 and $5,951,000 in straight-line rent, respectively. NH Master Tenant, LLC continues to operate the facilities pursuant to a management agreement with a Holiday-affiliated manager.

Bickford

As of June 30, 2015 , we owned an 85% equity interest and Sycamore Street, LLC ("Sycamore"), an affiliate of Bickford Senior Living ("Bickford"), owned a 15% equity interest in our consolidated subsidiary ("PropCo") which owns 31 assisted living/memory care facilities plus 5 facilities in pre-development and development. The facilities are leased to an operating company, ("OpCo"), in which we retain a non-controlling 85% ownership interest. The facilities are managed by Bickford. Our joint venture is structured to comply with the provisions of RIDEA.

In February 2015 the joint venture announced it would develop five senior housing facilities in Illinois and Virginia. Each community will be managed by Bickford and will consist of 60 private-pay assisted living and memory care units. Construction started in mid-2015, with openings planned beginning in late 2016. The total estimated project cost is $55,000,000 . In June 2015 we purchased land for two of the five planned assisted living facilities. Total capitalized costs related to these properties as of June 30, 2015 , including land purchases, were $3,842,000 . We have accumulated an additional $486,000 in pre-development costs for the remaining three sites.

As of June 30, 2015 , the annual contractual rent from OpCo to PropCo is $23,195,000 , plus fixed annual escalators. NHI has an exclusive right to Bickford's future acquisitions, development projects and refinancing transactions. Of our total revenues, $5,890,000 ( 10% ) and $5,202,000 ( 12% ) were recognized as rental income from Bickford for the three months ended June 30, 2015 and 2014 , and $11,695,000 ( 10% ) and $10,465,000 ( 12% ) for the six months ended June 30, 2015 and 2014, respectively.

NHC

As of June 30, 2015 , we leased 42 facilities under two master leases to National HealthCare Corporation (“NHC”), a publicly-held company and the lessee of our legacy properties. The facilities leased to NHC consist of 3 independent living facilities and 39 skilled nursing facilities ( 4 of which are subleased to other parties for whom the lease payments are guaranteed to us by NHC). These facilities are leased to NHC under the terms of an amended master lease agreement originally dated October 17, 1991 ("the 1991 lease") which includes our 35 remaining legacy properties and a master lease agreement dated August 30, 2013 ("the 2013 lease") which includes 7 skilled nursing facilities in New England.

The 1991 lease has been amended to extend the lease expiration to December 31, 2026. There are two additional 5 -year renewal options, each at fair rental value of such leased property as negotiated between the parties and determined without including the value attributable to any improvements to the leased property voluntarily made by NHC at its expense. Under the terms of the lease, the base annual rental is $30,750,000 and rent escalates by 4% of the increase, if any, in each facility's revenue over a 2007 base year. The 2013 lease provides for a base annual rental of $3,450,000 and has a lease expiration of August 2028. Under the terms of the 2013 lease, rent escalates 4% of the increase in each facility's revenue over a 2014 base year. For both the 1991 lease and the 2013 lease, we refer to this additional rent component as “percentage rent.” During the last three years of the 2013 lease, NHC will have the option to purchase the facilities for $49,000,000 .

The following table summarizes the percentage rent income from NHC ( in thousands ):

¹ For purposes of the percentage rent calculation described in the master lease Agreement, NHC’s annual revenue by facility for a given year is certified to NHI by March 31st of the following year.

Of our total revenues, $9,133,000 ( 16% ) and $9,109,000 ( 21% ) were derived from NHC for the three months ended June 30, 2015 and 2014 , respectively, and $18,360,000 ( 16% ) and $18,227,000 ( 21% ) for the six months ended June 30, 2015 and 2014 , respectively.

Senior Living Communities

Beginning in December 2014 we leased eight retirement communities with 1,671 units to Senior Living Communities, LLC (“Senior Living”). The 15 -year master lease contains two 5 -year renewal options and provides for initial cash rent of $31,000,000 , plus annual escalators of 4% in years two through four and 3% thereafter.

For the eight Senior Living properties acquired by us in December 2014 in a transaction accounted for as a business combination, the unaudited pro forma revenue, net income and net income available to common stockholders of the combined entity for the three and six months ended June 30, 2014 is provided below as if the acquisition date had been January 1, 2013 (in thousands except per share amounts):

Supplemental pro forma information above includes revenues from the lease recognized on a straight-line basis, depreciation, and appropriate interest costs.

Of our total revenues for the three and six months ended June 30, 2015, we recorded $9,855,000 ( 18% ) and $19,711,000 ( 18% ), respectively, in lease revenue from Senior Living, of which $2,105,000 and $4,211,000 respectively, represented straight-line rent. Net earnings from this acquisition were $4,570,000 and $9,166,000 for the same periods.

Assets Held for Sale

We are committed to a plan to sell the last two skilled nursing facilities of a disposal group that was originally under contract and classified during 2011 and 2012 as held-for-sale. As previously disclosed, the sale for the disposal group as a whole, being subject to certain conditions precedent as to financing, did not occur. NHI then proceeded to dispose of three of the properties in December 2013, the first of the group having been sold in 2011. On completion of these disposals to our tenant, Fundamental, a monthly rental of $250,000 was attached to the two remaining skilled nursing facilities through the end of the original lease term, February 2016, the properties having an average age in excess of 40 years. With the impending cessation of the lease, the two properties are being aggressively marketed for immediate sale under conditions less favorable than those prevailing in 2011. Using discounted cash flow techniques, NHI has evaluated the properties, with a carrying value of $8,467,000 , for potential impairment and has concluded that no impairment should be recorded at this time. The two properties do not meet the accounting criteria to be reported as a discontinued operation as their disposal will not result in a strategic shift that would have a major effect on our operations or financial results.

Upon the acquisition of our investment in OpCo in 2012, our purchase price was allocated to the assets acquired based upon their estimated relative fair values. We account for this investment using the equity method because OpCo is intended to be self-financing, and we do not control the entity, nor do we have any role in its day-to-day management. Financial reporting standards for equity method investments require that we account for the difference between the cost basis of our investment in OpCo and our pro rata share of the amount of underlying equity in the net assets of OpCo as though OpCo were a consolidated subsidiary. Accordingly, the excess of the original purchase price over the fair value of identified tangible assets at acquisition of $8,986,000 is treated as implied goodwill and is subject to periodic review for impairment in conjunction with our equity method investment. We noted no decline in values as of June 30, 2015 .

At June 30, 2015 , we held $21,275,000 as a lease security deposit on our 17 -year Holiday lease that commenced in December 2013 and is payable to Holiday at the end of the lease term.

Reserves for replacement, insurance and tax escrows include amounts required to be held on deposit in accordance with regulatory agreements governing our Fannie Mae and HUD mortgages.

Debt issuance costs are being amortized over the expected term of the debt instruments to which they are related.

NOTE 4. MORTGAGE AND OTHER NOTES RECEIVABLE

At June 30, 2015 , we had investments in mortgage notes receivable with a carrying value of $67,762,000 , secured by real estate and UCC liens on the personal property of 9 health care properties, and other notes receivable with a carrying value of $31,919,000 , guaranteed by significant parties to the notes or by cross-collateralization of properties with the same owner. No allowance for doubtful accounts was considered necessary at June 30, 2015 .

Repayments

In June 2015 Santé Partners, LLC (“Santé”) repaid its $11,700,000 mortgage obligation originally scheduled to come due on July 31. The mortgage was secured by a 70 -bed transitional rehabilitation center, for which NHI had held a purchase option. Additionally, in June 2015, NHI was repaid in full on a $1,000,000 mortgage note secured by a skilled nursing facility in Texas.

Timber Ridge

In February 2015, we entered into an agreement to lend LCS-Westminster Partnership III LLP (“LCS-WP”), and affiliate of Life Care Services, the manager of the facility, up to $154,500,000 . The loan agreement conveys a mortgage interest and will facilitate the construction of Phase II of Timber Ridge at Talus (“Timber Ridge”), a Type-A Continuing Care Retirement Community in the Seattle, WA area.

The loan takes the form of two notes under a master credit agreement. The senior loan (“Note A”) totals $60,000,000 at a 6.75% interest rate with 10 basis-point escalators after year three , and has a term of 10 years. We have funded $28,000,000 of Note A as of June 30, 2015 . Note A is interest-only and is locked to prepayment for three years. After year three, the prepayment penalty starts at 5% and declines 1% per year. The loan will be freely prepayable during the last 6 months of its term. The second note ("Note B") is a construction loan for up to $94,500,000 at an annual interest rate of 8% and a 5 year maturity. We anticipate funding Note B over eighteen months and anticipate substantial repayment with new resident entrance fees upon the opening of Phase II. The total amount funded on Note B was $20,501,000 as of June 30, 2015 .

NHI has a purchase option on the entire Timber Ridge property for the greater of fair market value or $115,000,000 during a purchase option window of 120 days that will contingently open in year five or upon earlier stabilization of the development, as defined. Because we neither control the entity, nor have any role in its day-to-day management, we account for our investment in LCS-WP at amortized cost.

Senior Living Communities

In connection with the December 2014 Senior Living acquisition, we provided a $15,000,000 revolving line of credit, the maturity of which mirrors the 15 -year term of the master lease. Borrowings are used to finance construction projects within the Senior Living Portfolio, including building additional units. Up to $5,000,000 of the facility may be used to meet general working capital needs. Amounts outstanding under the facility, $5,647,000 at June 30, 2015 , bear interest at an annual rate equal to the 10 -year U.S. Treasury rate, 2.35% at June 30, 2015 , plus 6% .

Sycamore

In July 2013 we extended a $9,200,000 loan to our joint venture partner, Sycamore, to fund a portion of their acquisition from a third party of six senior housing communities consisting of 342 units. The loan is guaranteed by principals of Bickford and has a 12% annual interest. As a result of the loan, PropCo acquired a $97,000,000 purchase option exercisable over the term of the loan, covering all of the properties, in whole or in part. Terms of the loan and the purchase option have been extended through June 2018. In June 2014 we entered into a $500,000 revolving loan to Sycamore to fund pre-development expenses related to potential future projects. Interest is payable monthly at 10% and the note, as extended, matures in June 2018. At June 30, 2015 , the revolving loan had an outstanding balance of $373,000 . Sycamore is intended to be self-financing, and our direct support has been limited to the loans described herein and a $3,550,000 letter of credit for the benefit of Sycamore. However, because we do not control Sycamore, nor do we have any role in the day-to-day management, we account for loans provided to Sycamore at historical cost.

Recovery

In June 2015 we received $491,000 as a secured creditor in the final settlement of a bankruptcy proceeding.

NOTE 5. INVESTMENT IN PREFERRED STOCK, AT COST

We recognized $818,000 and $1,636,000 in preferred dividend income from LTC (a publicly-traded REIT) for the three and six months ended June 30, 2015 and 2014 , respectively, on our investment in 2,000,000 shares of their cumulative preferred stock carried at its original cost of $38,132,000 . The preferred stock, which was purchased in September 1998, is not listed on a stock exchange, is considered a non-marketable security and is recorded at cost in our Condensed Consolidated Balance Sheets. The non-voting preferred stock is convertible into 2,000,000 shares of LTC common stock whose closing price at June 30, 2015 was $41.60 per share. The preferred stock has an annual cumulative coupon rate of 8.5% payable quarterly and a liquidation preference of $19.25 per share. While not the fair value of our preferred stock investment, we provide the above information as pertinent to the reader's estimation of the fair value of our investment. In accordance with ASC Topic 825 Financial Instruments , paragraph 10-50 Disclosure-Overall , we have determined that it is not practicable to estimate the fair value of our cost basis investment in preferred stock due to excessive costs related to inherent subjectivities in refining the estimate to a degree that is likely to materially augment the information provided above. Further, we have identified no events that may have had an adverse effect on its fair value which would have required revisiting the instrument's carrying value.

Gross unrealized gains related to available-for-sale securities were $10,576,000 at June 30, 2015 and $11,415,000 at December 31, 2014 .

Aggregate principal maturities of debt as of June 30, 2015 for each of the next five years and thereafter are as follows ( in thousands ):

In June 2015 we entered into an amended $800,000,000 senior unsecured credit facility with a group of banks. The facility can be expanded, subject to certain conditions, up to an additional $250,000,000 . The amended credit facility provides for: (1) a $550,000,000 unsecured, revolving credit facility that matures in June 2020 (inclusive of an embedded 1 -year extension option) with interest at 150 basis points over LIBOR ( 19 bps at June 30, 2015 ); (2) a $130,000,000 unsecured term loan that matures in June 2020 with interest at 175 basis points over LIBOR; and (3) two existing term loans which remain in place totaling $120,000,000 , maturing in June 2020 and bearing interest at 175 basis points over LIBOR. At closing, the new facility replaced a smaller credit facility last amended in March 2014 that provided for $700,000,000 of total commitments. The employment of interest rate swaps for our fixed term debt leaves only our revolving credit facility exposed to variable rate risk. Our swaps and the financial instruments to which they relate are described in the table below, under the caption “Interest Rate Swap Agreements.”

At June 30, 2015 we had $449,000,000 available to draw on the revolving portion of the credit facility. The unused commitment fee is 40 basis points per annum. The unsecured credit facility requires that we maintain certain financial ratios within limits set by our creditors. To date, these ratios, which are calculated quarterly, have been within the limits required by the credit facility agreements.

In March 2015 we obtained $78,084,000 in Fannie Mae financing through KeyBank National Association. The term debt financing consists of interest-only payments at an annual rate of 3.79% and a 10 -year maturity. The mortgages are non-recourse and secured by thirteen properties in NHI’s joint venture with Bickford. Proceeds were used to reduce borrowings on NHI's unsecured bank credit facility. The notes are secured by the facilities previously pledged as security on Fannie Mae term debt that was retired in December 2014.

In January 2015 we issued $125,000,000 of 8 -year notes with a coupon of 3.99% and $100,000,000 of 12 -year notes with a coupon of 4.51% to a private placement lender. The notes are unsecured and require quarterly payments of interest only until maturity. We used the proceeds from the notes to pay down borrowings on our revolving credit facility. Terms and conditions of the new financing are similar to those under our bank credit facility with the exception of provisions regarding prepayment premiums.

In March 2014 we issued $200,000,000 of 3.25% senior unsecured convertible notes due April 2021 (the "Notes"). Interest is payable April 1st and October 1st of each year. The Notes are convertible at an initial conversion rate of 13.926 shares of common stock per $1,000 principal amount, representing a conversion price of approximately $71.81 per share for a total of approximately 2,785,200 underlying shares. The conversion rate is subject to adjustment upon the occurrence of certain events, as defined in the indenture governing the Notes, but will not be adjusted for any accrued and unpaid interest except in limited circumstances. The conversion option is considered an "optional net-share settlement conversion feature," meaning that upon conversion, NHI's conversion obligation may be satisfied, at our option, in cash, shares of common stock or a combination of cash and shares of common stock. Our average stock price in for the second quarter of 2015 is less than the conversion price, making the conversion option anti-dilutive for the three months ended June 30, 2015. For the year-to-date period, 2015 dilution is determined by computing an average of incremental shares included in each quarterly diluted EPS computation, resulting in a dilutive effect of the conversion feature of 9,471 shares for the six months ended June 30, 2015.

The embedded conversion options (1) do not require net cash settlement, (2) are not conventionally convertible but can be classified in stockholders’ equity under ASC 815-40, and (3) are considered indexed to NHI’s own stock. Therefore, the conversion feature satisfies the conditions to qualify for an exception to the derivative liability rules, and the Notes are split into debt and equity components. The value of the debt component is based upon the estimated fair value of a similar debt instrument without the conversion feature at the time of issuance and was estimated to be approximately $192,238,000 . The $7,762,000 difference between the contractual principal on the debt and the value allocated to the debt was recorded as an equity component and represents the estimated value of the conversion feature of the instrument. The excess of the contractual principal amount of the debt over its estimated fair value, the original issue discount, is amortized to interest expense using the effective interest method over the estimated term of the Notes. The effective interest rate used to amortize the debt discount and the liability component of the debt issue costs was approximately 3.9% based on our estimated non-convertible borrowing rate at the date the Notes were issued.

The total cost of issuing the Notes was $6,063,000 , $275,000 of which was allocated to the equity component and $5,788,000 of which was allocated to the debt component and subject to amortization over the estimated term of the notes. The remaining unamortized balance at June 30, 2015, was $4,629,000 .

Our HUD mortgage loans are secured by ten properties in our joint venture with Bickford. Nine mortgage notes require monthly payments of principal and interest from 4.65% to 4.75% in the first year and from 4.3% to 4.4% thereafter (inclusive of mortgage insurance premium) and mature in August and October 2049. One additional HUD mortgage loan assumed in 2014 requires monthly payments of principal and interest of 2.9% (inclusive of mortgage insurance premium) and matures in October 2047. The loan has an outstanding principal balance of $9,408,000 and a net book value of $7,790,000 , which approximates fair value.

The following table summarizes interest expense ( in thousands ):

See Note 11 for fair value disclosures about our variable and fixed rate debt and interest rate swap agreements.

NOTE 8. COMMITMENTS AND CONTINGENCIES

Bickford

In February 2015 our joint venture with Bickford announced plans to develop five senior housing facilities in Illinois and Virginia. Each community will be managed by Bickford and consist of 60 private-pay assisted living and memory care units. These five properties will represent the culmination of plans announced in 2012 between NHI and Bickford to construct a total of eight facilities. The first three communities, all in Indiana, opened in 2013 and 2014. Pre-development and land acquisition on the five facilities started in mid-2015 with openings planned beginning in late 2016. The total estimated project cost is $55,000,000 . As of June 30, 2015 , land and pre-development costs incurred on the project totaled $4,328,000 .

In February 2014 we entered into a commitment on a letter of credit for the benefit of Sycamore which holds a minority interest in PropCo. At June 30, 2015 our commitment on the letter of credit totaled $3,550,000 .

In June 2014 we entered into a $500,000 revolving loan with Sycamore to fund pre-development expenses related to potential future projects. Interest is payable monthly at 10% and the note, as extended, matures in June 2018. At June 30, 2015 , the revolving loan had an outstanding balance of $373,000 .

Chancellor

In October 2013, we entered into a $7,500,000 commitment to build a 46 -unit free-standing assisted living and memory care community on our Linda Valley senior living campus in Loma Linda, California. We began construction during the first quarter of 2014 and had funded $6,965,000 as of June 30, 2015 . The initial lease term is for 15 years at an annual rate of 9% plus a fixed annual escalator. NHI purchased the Linda Valley campus in 2012 and leased it to Chancellor Health Care ("Chancellor"), who has been operating the campus since 1993. We also committed to provide up to $1,150,000 for renovations and improvements related to our recent acquisitions of senior housing communities in Oregon and Maryland, which we have leased to Chancellor. We began renovations during the first quarter of 2014 and had funded $573,000 as of June 30, 2015 . We receive rent income on funds advanced for each construction project.

Discovery

As a lease inducement, we have a contingent commitment to fund a series of payments up to $2,500,000 in connection with our September 2013 lease to Discovery Senior Living ("Discovery") of a senior living campus in Rainbow City, Alabama. Discovery would earn the contingent payments upon gaining, and maintaining, a specified lease coverage ratio. Remaining payments will be assessed for funding in an amount of $750,000 in September 2015 with the residual potentially due in 2016. As of June 30, 2015 , incurring the contingent payments was not considered probable. Accordingly, no provision for these payments is reflected in the condensed consolidated financial statements.

Kentucky River

I n March 2012, we entered into a long-term lease extension and construction commitment to an affiliate of Community Health Systems to provide up to $8,000,000 for extensive renovations and additions to our Kentucky River Medical Center, a general acute care hospital in Jackson, Kentucky. Funding for this investment is added to the basis on which the lease amount is calculated. The construction project commenced during the first quarter of 2013 and is expected to be completed in 2015. Total construction costs incurred as of June 30, 2015 were $7,461,000 . The 10 -year lease extension began July 1, 2012, with an additional 5 -year renewal option.

Prestige

We agreed to fund capital improvements of up to $2,000,000 in connection with two of the skilled nursing facilities we lease to Prestige Senior Living. As of June 30, 2015 , we had fully funded this commitment. The capital improvements were added to our original investment in the properties and are included in the lease base. Additionally, we have committed to fund contingent earn out payments up to a maximum of $6,390,000 based on the achievement of certain financial metrics as measured periodically through December 31, 2015. At acquisition, we estimated probable contingent payments of $3,000,000 to be likely and have reflected that amount in the condensed consolidated financial statements. Contingent payments earned will be included in the lease base when funded.

Santé

We are committed to fund a $3,500,000 expansion and renovation program at our Silverdale, Washington senior living campus and as of June 30, 2015 , had funded $2,621,000 , which was added to the basis on which the lease amount is calculated. In addition, we have a contingent commitment to fund two lease inducement payments of $1,000,000 each. Santé would earn the payments upon attaining and sustaining a specified lease coverage ratio. If earned, the first payment would be due following calendar year 2015 and the second payment would be due following calendar year 2016. At acquisition, incurring the contingent payments was not considered probable. Accordingly, no provision for these payments is reflected in the condensed consolidated financial statements.

Senior Living Communities

In connection with our December 2014 Senior Living acquisition, we have provided a $15,000,000 revolving line of credit to Senior Living, the maturity of which mirrors the term of the master lease. Borrowings will be used to finance construction projects within the Senior Living Portfolio, including building additional units. Up to $5,000,000 of the facility may be used to meet general working capital needs. Amounts outstanding under the facility, $5,647,000 at June 30, 2015 , bear interest at an annual rate equal to the 10 -year U.S. Treasury rate, 2.35% at June 30, 2015 , plus 6% .

Senior Living Management

We have entered into agreements with our current tenant, Senior Living Management, to fund up to $920,000 for renovations to our facilities in Georgia and Louisiana. As amounts are funded, they are added to the lease base. As of June 30, 2015 , we had funded $224,000 toward this commitment.