Biggest changeIn the future, the SEC or Nareit may decide to standardize the allowable exclusions across the REIT industry, and we may have to adjust the calculation and characterization of this non-GAAP measure. 40 Tabl e of Contents The following are the calculations of FFO and AFFO for the years ended December 31, 2023 and 2022: Years Ended December 31, 2023 2022 Net loss (in accordance with GAAP) $ (8,696,261) $ (4,511,318) Preferred stock dividends (3,687,500) (3,687,500) Net loss attributable to common stockholders and Class C OP Unit holders (12,383,761) (8,198,818) FFO adjustments: Depreciation and amortization of real estate properties 15,551,173 14,929,574 Amortization of deferred lease incentives 153,581 412,098 Depreciation and amortization for unconsolidated investment in a real estate property 756,610 777,041 Impairment of real estate investment property 4,387,624 2,080,727 Loss (gain) on sale of real estate investments, net 1,708,801 (12,196,371) FFO attributable to common stockholders and Class C OP Unit holders 10,174,028 (2,195,749) Stock compensation for performance units expense 8,555,529 — FFO excluding performance units expense 18,729,557 (2,195,749) AFFO adjustments: Impairment of goodwill — 17,320,857 Non-recurring corporate relocation costs — 500,000 Stock compensation excluding performance units expense 2,615,678 2,401,022 Deferred financing costs 766,738 484,931 Loss on early extinguishment of debt — 1,725,318 Due diligence expenses, including abandoned pursuit costs 347,598 661,222 Amortization of deferred rents (6,232,257) (3,237,482) Unrealized loss (gain) on valuation of interest rate swaps, net 618,301 (25,733) Amortization of (below) above market lease intangibles, net (807,794) (1,005,487) Unrealized gain on investment in preferred stock (1,418,658) — Other adjustments for unconsolidated investment in a real estate property 53,278 5,251 AFFO attributable to common stockholders and Class C OP Unit holders $ 14,672,441 $ 16,634,150 Weighted Average Shares Outstanding: Basic 7,558,833 7,487,204 Fully diluted excluding performance units (1) 10,593,160 10,225,850 Fully diluted (2) 11,067,675 10,225,850 FFO Per Share: Basic $ 1.35 $ (0.29) Fully diluted $ 0.92 $ (0.29) FFO Per Share Excluding Performance Units Expense: Basic $ 2.48 $ (0.29) Fully diluted $ 1.77 $ (0.29) AFFO Per Share: Basic $ 1.94 $ 2.22 Fully diluted $ 1.33 $ 1.63 (1) Excludes 474,515 performance units in accordance with the terms of the Operating Partnership Agreement.
Biggest changeIn the future, the SEC or Nareit may decide to standardize the allowable exclusions across the REIT industry, and we may have to adjust the calculation and characterization of this non-GAAP measure. 41 The following are the calculations of FFO and AFFO for the years ended December 31, 2024 and 2023 (in thousands, except shares outstanding and per share data): Year Ended December 31, 2024 2023 Net income (loss) (in accordance with GAAP) $ 6,493 $ (8,696) Preferred stock dividends (3,688) (3,688) Net income (loss) attributable to common stockholders and Class C OP Unit holders 2,805 (12,384) FFO adjustments: Depreciation and amortization of real estate properties 16,601 15,551 Amortization of deferred lease incentives — 154 Depreciation and amortization for unconsolidated investment in a real estate property 756 757 Impairment of real estate investment property — 4,388 (Gain) loss on sale of real estate investments, net (3,360) 1,709 FFO attributable to common stockholders and Class C OP Unit holders 16,802 10,175 AFFO adjustments: Stock compensation expense 1,586 11,171 Amortization and write-off of deferred financing costs 1,192 767 Abandoned pursuit costs 240 348 Amortization of deferred rents (5,716) (6,232) Unrealized loss on interest rate swap valuation 1,479 618 Amortization of (below) above market lease intangibles, net (847) (808) Loss on equity investments 151 — Increase in fair value of investment in preferred stock — (1,419) Other adjustments for unconsolidated investment in a real estate property 101 53 AFFO attributable to common stockholders and Class C OP Unit holders $ 14,988 $ 14,673 Weighted Average Shares/Units Outstanding: Fully diluted (1) 11,188,974 11,067,725 FFO Per Share/Unit: Fully diluted $ 1.50 $ 0.92 AFFO Per Share/Unit: Fully diluted $ 1.34 $ 1.33 (1) Fully diluted weighted average number of shares for 2023 includes the Class M OP Units which automatically converted to Class C OP Units on January 30, 2024, and Class P and Class R OP Units which automatically converted to Class C OP Units as of March 31, 2024, to compute the fully diluted weighted average number of shares. 42 Property Portfolio Information Following the issuance of our publicly listed Series A Preferred Stock in September 2021, we began to significantly transform our portfolio in furtherance of our strategic plan to reduce our exposure to office properties and increase our WALT.