Current accounting guidance on fair value measurements establishes a framework for measuring fair value and provides for expanded disclosures about fair value measurements. The guidance:

Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk. To increase consistency and comparability in fair value measurements and related disclosures, the fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The three levels of the hierarchy are defined as follows:

The categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following is a description of the valuation methodologies used for the assets and liabilities measured at fair value on a recurring basis.

The fair value of the Partnership’s investments in MRBs, taxable MRBs and bond purchase commitments as of December 31, 2023 and December 31, 2022, is based upon prices obtained from third-party pricing services, which are estimates of market prices. There is no active trading market for these securities, and price quotes for the securities are not available. The valuation methodology of the Partnership’s third-party pricing services incorporates commonly used market pricing methods. The valuation methodology considers the underlying characteristics of each security as well as other quantitative and qualitative characteristics including, but not limited to, market interest rates, illiquidity, legal structure of the borrower, collateral, seniority to other obligations, operating results of the underlying property, geographic location, and property quality. These characteristics are used to estimate an effective yield for each security. The security fair value is estimated using a discounted cash flow and yield to maturity or call analysis by applying the effective yield to contractual cash flows. Significant increases (decreases) in the effective yield would have resulted in a significantly lower (higher) fair value estimate. Changes in fair value due to an increase or decrease in the effective yield do not impact the Partnership’s cash flows.

The Partnership evaluates pricing data received from the third-party pricing services by evaluating consistency with information from either the third-party pricing services or public sources. The fair value estimates of the MRBs, taxable MRBs and bond purchase commitments are based largely on unobservable inputs believed to be used by market participants and requires the use of judgment on the part of the third-party pricing services and the Partnership. Due to the judgments involved, the fair value measurements of the Partnership’s investments in MRBs, taxable MRBs and bond purchase commitments are categorized as Level 3 assets.

The range of effective yields and weighted average effective yields of the Partnership’s investments in MRBs, taxable MRBs and bond purchase commitments as of December 31, 2023 and 2022 are as follows:


	Range of Effective Yields		Weighted Average Effective Yields (1)
Security Type	December 31, 2023	December 31, 2022	December 31, 2023			December 31, 2022
Mortgage revenue bonds (2)	2.3% - 7.7%	2.6% - 20.3%		4.8	%		5.1	%
Taxable mortgage revenue bonds	6.5% - 11.9%	6.5% - 11.4%		8.8	%		7.6	%
Bond purchase commitments	4.1%	4.5%		4.1	%		4.5	%

(1)

Weighted by the total principal outstanding of all the respective securities as of the reporting date.

(2)

Mortgage revenue bonds excludes the Provision Center 2014-1 MRB for figures as of December 31, 2023 as the proton therapy center securing the MRB was successfully sold out of bankruptcy in July 2022 and the Partnership received liquidation proceeds of $3.7 million in January 2023. The MRB valuation as of December 31, 2023 is based on expected additional liquidation proceeds of approximately $928,000 at final liquidation.

The effect of the Partnership’s interest rate swap agreements is to change a variable rate debt obligation to a fixed rate for that portion of the debt equal to the notional amount of the derivative agreement. The Partnership uses a third-party pricing service that incorporates commonly used market pricing methods to value the interest rate swaps. The fair value is based on a model that considers observable indices and observable market trades for similar arrangements and therefore the interest rate swaps are categorized as Level 2 assets or liabilities.

The effect of the Partnership’s interest rate cap is to set a cap, or upper limit, subject to performance of the counterparty, on the base rate of interest paid on the Partnership’s variable rate debt financings equal to the notional amount of the derivative agreement. The Partnership uses a third-party pricing service to value the interest rate cap. The inputs into the interest rate cap agreements valuation model include SOFR rates, unobservable adjustments to account for the SIFMA index, as well as any recent interest rate cap trades with similar terms. The fair value is based on a model with inputs that are not observable and therefore the interest rate cap is categorized as a Level 3 asset.

The effect of the Partnership’s total return swap was to lower the net interest rate related to the Partnership’s Secured Notes equal to the notional amount of the derivative agreement. The Partnership used a third-party pricing service to value the total return swap position and the inputs in the total return swap valuation model include changes in the value of the Secured Notes and the associated changes in value of the underlying assets securing the Secured Notes, accrued and unpaid interest, and any potential gain share amounts. The fair value was based on a model with inputs that are not observable and therefore the total return swaps were categorized as Level 3 assets or liabilities.

Assets measured at fair value on a recurring basis as of December 31, 2023 are summarized as follows:


	Fair Value Measurements as of December 31, 2023
Description	Assets and Liabilities at Fair Value			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Assets and Liabilities
Mortgage revenue bonds, held in trust	$	883,030,786		$	-	$	-		$	883,030,786
Mortgage revenue bonds		47,644,509			-		-			47,644,509
Bond purchase commitments (reported within other assets)		197,788			-		-			197,788
Taxable mortgage revenue bonds (reported within other assets)		21,460,288			-		-			21,460,288
Derivative instruments (reported within other assets)		5,254,663			-		5,254,398			265
Derivative swap liability (reported within other liabilities)		(705,694	)		-		(705,694	)		-
Total Assets and Liabilities at Fair Value, net	$	956,882,340		$	-	$	4,548,704		$	952,333,636

The following table summarizes the activity related to Level 3 assets and liabilities for the year ended December 31, 2023:


	For the Year ended December 31, 2023
	Fair Value Measurements Using Significant
	Unobservable Inputs (Level 3)
	Mortgage Revenue Bonds (1)			Bond Purchase Commitments		Taxable Mortgage Revenue Bonds			Derivative Instruments			Total
Beginning Balance January 1, 2023	$	799,408,004		$	98,929	$	16,531,896		$	331,240		$	816,370,069
Total gains (losses) (realized/unrealized)
Included in earnings (interest income and interest expense)		305,081			-		(24,198	)		4,410,346			4,691,229
Included in other comprehensive income		17,113,511			98,859		(1,355,710	)		-			15,856,660
Purchases and advances		141,135,222			-		13,319,875			-			154,455,097
Settlements and redemptions		(27,286,523	)		-		(7,011,575	)		(4,741,321	)		(39,039,419	)
Ending Balance December 31, 2023	$	930,675,295		$	197,788	$	21,460,288		$	265		$	952,333,636
Total amount of gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets or liabilities held on December 31, 2023	$	68,812		$	-	$	-		$	(91,421	)	$	(22,609	)

(1)

Mortgage revenue bonds include both bonds held in trust as well as those held by the Partnership.

Assets measured at fair value on a recurring basis as of December 31, 2022 are summarized as follows:


	Fair Value Measurements as of December 31, 2022
Description	Assets at Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Mortgage revenue bonds, held in trust	$	763,208,945	$	-	$	-	$	763,208,945
Mortgage revenue bonds		36,199,059		-		-		36,199,059
Bond purchase commitments (reported within other assets)		98,929		-		-		98,929
Taxable mortgage revenue bonds (reported within other assets)		16,531,896		-		-		16,531,896
Derivative instruments (reported within other assets)		7,530,438		-		7,199,198		331,240
Total Assets at Fair Value, net	$	823,569,267	$	-	$	7,199,198	$	816,370,069

The following table summarizes the activity related to Level 3 assets and liabilities for the year ended December 31, 2022:


	For the Year Ended December 31, 2022
	Fair Value Measurements Using Significant
	Unobservable Inputs (Level 3)
	Mortgage Revenue Bonds (1)			Bond Purchase Commitments			Taxable Mortgage Revenue Bonds			Derivative Instruments			Total
Beginning Balance January 1, 2022	$	793,509,844		$	964,404		$	3,428,443		$	343,418		$	798,246,109
Total gains (losses) (realized/unrealized)
Included in earnings (interest income and interest expense)		1,958,135			-			(20,028	)		5,756,111			7,694,218
Included in other comprehensive income		(68,890,753	)		(865,475	)		(535,793	)		-			(70,292,021	)
Purchases and advances		182,726,187			-			13,669,857			-			196,396,044
Settlements and redemptions		(109,034,876	)		-			(10,583	)		(5,768,289	)		(114,813,748	)
Other (2)		(860,533	)		-			-			-			(860,533	)
Ending Balance December 31, 2022	$	799,408,004		$	98,929		$	16,531,896		$	331,240		$	816,370,069
Total amount of gains for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets or liabilities held on December 31, 2022	$	57,124		$	-		$	-		$	40,538		$	97,662

(1)

Mortgage revenue bonds include both bonds held in trust as well as those held by the Partnership.

(2)

The other line is related to a re-allocation of the loan loss allowance upon restructuring of the Live 929 Apartments MRBs and property loan (Notes 6 and 8).

Total gains and losses included in earnings for the derivative instruments are reported within “Interest expense” in the Partnership’s consolidated statements of operations.

As of December 31, 2023 and 2022, the Partnership utilized a third-party pricing service to determine the fair value of the Partnership’s GILs, taxable GILs, and construction financing property loans that share a first mortgage lien with the GILs, which is an estimate of their market price. The valuation methodology of the Partnership’s third-party pricing service incorporates commonly used market pricing methods. The valuation methodology considers the underlying characteristics of the GILs and property loans as well as other quantitative and qualitative characteristics including, but not limited to, the progress of construction and operations of the underlying properties, and the financial capacity of guarantors. The valuation methodology also considers the probability that conditions for the execution of forward commitments to purchase the GILs will be met. Due to the judgments involved, the fair value measurements of the Partnership’s GILs, taxable GILs, and construction financing property loans are categorized as Level 3 assets. The estimated fair value of the GILs and taxable GILs was $225.7 million and $12.1 million as of December 31, 2023, respectively. The estimated fair value of the GILs and taxable GILs was $305.0 million and $6.8 million as of December 31, 2022, respectively. The estimated fair value of the construction financing property loans approximated amortized cost as of December 31, 2023 and 2022.

As of December 31, 2023 and 2022, the Partnership utilized a third-party pricing service to determine the fair value of the Partnership’s financial liabilities, which are estimates of market prices. The valuation methodology of the Partnership’s third-party pricing service incorporates commonly used market pricing methods. The valuation methodology considers the underlying characteristics of each financial liability as well as other quantitative and qualitative characteristics including, but not limited to, market interest rates, legal structure, seniority to other obligations, operating results of the underlying assets, and asset quality. The financial liability values are then estimated using a discounted cash flow and yield to maturity or call analysis.

The Partnership evaluates pricing data received from the third-party pricing service, including consideration of current market interest rates, quantitative and qualitative characteristics of the underlying collateral, and other information from either the third-party pricing service or public sources. The fair value estimates of these financial liabilities are based largely on unobservable inputs believed to be used by market participants and require the use of judgment on the part of the third-party pricing service and the Partnership. Due to the judgments involved, the fair value measurements of the Partnership’s financial liabilities are categorized as Level 3 liabilities. The TEBS financings are credit enhanced by Freddie Mac. The TOB trust financings are credit enhanced by either Mizuho or Barclays. The table below summarizes the fair value of the Partnership’s financial liabilities as of December 31, 2023 and 2022:


	December 31, 2023				December 31, 2022
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Liabilities:
Debt financing	$	1,015,030,066	$	1,019,218,351	$	1,058,903,952	$	1,059,674,409
Secured lines of credit		33,400,000		33,400,000		55,500,000		55,500,000
Mortgages payable		1,690,000		1,690,000		1,690,000		1,690,000