Financial Reporting during Bankruptcy Proceedings. We began to apply Financial Accounting Standards Board Accounting Standards Codification, or ASC, Topic 852, Reorganizations, effective on the Petition Date, which specifies the accounting and financial reporting requirements for entities reorganizing through Chapter 11 bankruptcy proceedings. These requirements include distinguishing transactions directly associated with the reorganization from activities related to the ongoing operations of the business within the financial statements for periods subsequent to the Petition Date. Expenses, realized gains and losses, and provisions for losses that are directly associated with reorganization proceedings must be reported separately as reorganization items, net in the consolidated statement of comprehensive income (loss). In addition, the consolidated balance sheet must distinguish certain liabilities subject to compromise, or LSTC. LSTC are pre-petition obligations that are not fully secured and have at least a possibility of not being repaid at the full claim amount. Where there is uncertainty about whether a secured claim will be paid or impaired pursuant to the Chapter 11 Cases, we have classified the entire amount of the claim as LSTC.

Upon emergence from bankruptcy on the effective date of the Plan, we expect to qualify for fresh-start reporting. In order to qualify for fresh-start reporting (i) the holders of existing voting shares of OPI prior to its emergence must receive less than 50% of the outstanding voting shares of the reorganized company following its emergence from bankruptcy and (ii) the reorganization value of OPI’s assets immediately prior to confirmation of the Plan must be less than the post-petition liabilities and allowed claims. Under the principles of fresh-start reporting, a new reporting entity, or the Successor, will be considered to have been created, and, as a result, the Successor will allocate the reorganization value of the Successor to its individual assets based on their estimated fair values.

Liabilities Subject to Compromise. As of December 31, 2025, we reclassified certain LSTC in our consolidated balance sheet. These liabilities are reported at the amounts expected to be allowed as claims by the Bankruptcy Court. The amounts are preliminary and may be subject to future adjustments depending on Bankruptcy Court actions, developments with respect to disputed claims, determinations of the secured status of certain claims, the values of any collateral securing such claims,

Real Estate Properties. We record our properties at cost and provide depreciation on real estate investments on a straight line basis over estimated useful lives generally ranging from 7 to 40 years. In some circumstances, we engage independent real estate appraisal firms to provide market information and evaluations which are relevant to our purchase price allocations and determinations of useful lives; however, we are ultimately responsible for the purchase price allocations and determinations of useful lives.

We allocate the purchase prices of our properties to land, buildings and improvements based on determinations of the relative fair values of these assets assuming the properties are vacant. We determine the fair value of each property using methods similar to those used by independent appraisers, which may involve estimated cash flows that are based on a number of factors, including capitalization rates and discount rates, among others. We allocate a portion of the purchase price of our properties to above market and below market leases based on the present value (using an interest rate which reflects the risks associated with acquired in place leases at the time each property was acquired by us) of the difference, if any, between (i) the contractual amounts to be paid pursuant to the acquired in place leases and (ii) our estimates of fair market lease rates for the corresponding leases, measured over a period equal to the terms of the respective leases. We allocate a portion of the purchase price to acquired in place leases and tenant relationships based upon market estimates to lease up the property based on the leases in place at the time of purchase. We allocate this aggregate value between acquired in place lease values and tenant relationships based on our evaluation of the specific characteristics of each tenant’s lease. However, we have not separated the value of tenant relationships from the value of acquired in place leases because such value and related amortization expense is immaterial to the accompanying consolidated financial statements. In making these allocations, we consider factors such as estimated carrying costs during the expected lease up periods, including real estate taxes, insurance and other operating income and expenses and costs, such as leasing commissions, legal and other related expenses, to execute similar leases in current market conditions at the time a property was acquired by us. If the value of tenant relationships becomes material in the future, we may separately allocate those amounts and amortize the allocated amounts over the estimated life of the relationships. For transactions that qualify as business combinations, we allocate the excess, if any, of the consideration over the fair value of the assets acquired to goodwill.

We amortize capitalized above market lease values (included in acquired real estate leases, net in our consolidated balance sheets) and below market lease values (presented as assumed real estate lease obligations, net in our consolidated balance sheets) as a reduction or increase, respectively, to rental income over the terms of the associated leases. Such amortization resulted in net increases to rental income of $562 and $402 during the years ended December 31, 2025 and 2024, respectively. We amortize the value of acquired in place leases (included in acquired real estate leases, net in our consolidated balance sheets), exclusive of the value of above market and below market acquired in place leases, over the terms of the associated leases. Such amortization, which is included in depreciation and amortization expense, amounted to $41,716 and $65,039 during the years ended December 31, 2025 and 2024, respectively. If a lease is terminated prior to its stated expiration, we write off the unamortized amounts relating to that lease.

As of December 31, 2025 and 2024, our acquired real estate leases and assumed real estate lease obligations, excluding properties classified as held for sale, were as follows:


	December 31,
	2025		2024
Acquired real estate leases:
Capitalized above market lease values	$	4,620	$	7,715
Less: accumulated amortization	(3,569)		(5,814)
Capitalized above market lease values, net	1,051		1,901

Lease origination value	344,445		433,347
Less: accumulated amortization	(195,242)		(241,509)
Lease origination value, net	149,203		191,838
Acquired real estate leases, net	$	150,254	$	193,739

Assumed real estate lease obligations:
Capitalized below market lease values	$	14,098	$	14,177
Less: accumulated amortization	(5,724)		(4,652)
Assumed real estate lease obligations, net	$	8,374	$	9,525

We regularly evaluate whether events or changes in circumstances have occurred that could indicate an impairment in the value of long lived assets. Impairment indicators may include declining tenant occupancy, lack of progress releasing vacant space, tenant bankruptcies, low long term prospects for improvement in property performance, weak or declining tenant profitability, cash flow or liquidity, our decision to dispose of an asset before the end of its estimated useful life and legislative, market or industry changes that could permanently reduce the value of a property. If there is an indication that the carrying value of an asset is not recoverable, we estimate the projected undiscounted cash flows to determine if an impairment loss should be recognized. The future net undiscounted cash flows are subjective and are based in part on assumptions regarding hold periods, market rents and terminal capitalization rates. We determine the amount of any impairment loss by comparing the historical carrying value to estimated fair value. We estimate fair value through an evaluation of recent financial performance and projected discounted cash flows using standard industry valuation techniques. In addition to consideration of impairment upon the events or changes in circumstances described above, we regularly evaluate the remaining useful lives of our long lived assets. If we change our estimate of the remaining useful lives, we allocate the carrying value of the affected assets over their revised remaining useful lives.

Deferred Leasing Costs. Deferred leasing costs include brokerage costs and inducements associated with our entering leases. We amortize deferred leasing costs, which are included in depreciation and amortization expense, and inducements, which are included as a reduction to rental income, on a straight line basis over the terms of the respective leases. Legal costs associated with the execution of our leases are expensed as incurred and included in general and administrative expenses in our consolidated statements of comprehensive income (loss). We recorded amortization of deferred leasing costs of $11,385 and $10,988, and reductions to rental income related to the amortization of inducements of $3,018 and $2,003 for the years ended December 31, 2025 and 2024, respectively. Deferred leasing costs, excluding properties classified as held for sale, totaled $138,986 and $127,095 at December 31, 2025 and 2024, respectively, and accumulated amortization of deferred leasing costs totaled $40,718 and $29,453 at December 31, 2025 and 2024, respectively. Future amortization of deferred leasing costs to be recognized during the current terms of our existing leases as of December 31, 2025 are estimated to be $14,671 in 2026, $12,970 in 2027, $12,200 in 2028, $11,360 in 2029, $10,151 in 2030 and $36,916 thereafter.

Debt Issuance Costs. Costs related to the issuance or assumption of debt are capitalized and amortized to interest expense over the terms of the respective loans. Debt issuance costs, net of accumulated amortization, for our $325,000 secured revolving credit facility are included in other assets in our consolidated balance sheets. As of December 31, 2025 and 2024, debt issuance costs for our revolving credit facility were $7,838 and accumulated amortization of debt issuance costs for our revolving credit facility were $4,995 and $2,396, respectively. Debt issuance costs for the DIP Facility are expensed as incurred and included in reorganization items, net in our consolidated statement of comprehensive net income (loss). Debt issuance costs, net of accumulated amortization, for our senior notes, term loan and mortgage notes payable are presented as a direct deduction from the associated debt liability in our consolidated balance sheets. As of December 31, 2025 and 2024, debt issuance costs, net of accumulated amortization, for our senior notes, term loan and mortgage notes payable totaled $10,648 and $65,802, respectively. Future amortization of debt issuance costs to be recognized with respect to our revolving credit facility and term loan, senior notes and mortgage notes payable as of December 31, 2025 are estimated to be $6,294 in 2026, $3,150 in 2027, $2,635 in 2028, $687 in 2029, $203 in 2030 and $522 thereafter.

Equity Method Investments. As of December 31, 2025, we had a noncontrolling ownership interest of 51% in an unconsolidated joint venture that owned two properties. The properties owned by the joint venture were encumbered by $49,106 of mortgage indebtedness. We did not control the activities that are most significant to the joint venture and, as a result, we accounted for our investment in the joint venture under the equity method of accounting. See Note 4 for more information regarding our unconsolidated joint ventures.

We periodically evaluate our equity method investments for possible indicators of other than temporary impairment whenever events or changes in circumstances indicate the carrying amount of the investment might not be recoverable. These indicators may include the length of time and the extent to which the market value of our investment is below our carrying value, the financial condition of our investees, our intent and ability to be a long term holder of the investment and other considerations. If the decline in fair value is judged to be other than temporary, we record an impairment charge to adjust the basis of the investment to its estimated fair value.

Our leases provide for base rent payments and in addition may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining the lease term. Allowances for bad debts are recognized as a direct reduction of rental income.

Certain of our leases contain non-lease components, such as property level operating expenses and capital expenditures reimbursed by our tenants as well as other required lease payments. We have made the policy election to not separate the lease and non-lease components because (i) the lease components are operating leases and (ii) the timing and pattern of recognition of the non-lease components are the same as those of the lease components. We apply ASC Topic 842, Leases, to the combined component. Income derived by our leases is recorded in rental income in our consolidated statements of comprehensive income (loss).

Certain tenants are obligated to pay directly their obligations under their leases for insurance, real estate taxes and certain other expenses. These obligations, which have been assumed by the tenants under the terms of their respective leases, are not reflected in our consolidated financial statements. To the extent any tenant responsible for any such obligations under the applicable lease defaults on such lease or if it is deemed probable that the tenant will fail to pay for such obligations, we would record a liability for such obligations. See Note 5 for more information regarding our leases.

Use of Estimates. Preparation of these financial statements in conformity with GAAP requires us to make estimates and assumptions that may affect the amounts reported in these consolidated financial statements and related notes. The actual results could differ from these estimates. Significant estimates in the consolidated financial statements include purchase price allocations, useful lives of fixed assets and assessment of impairment of real estate and the related intangibles.