Basis of Presentation	6 Months Ended
Jun. 30, 2022
Basis Of Presentation [Abstract]
Basis of Presentation	1. Basis of Presentation America First Multifamily Investors, L.P. (the “Partnership”) was formed on April 2, 1998, under the Delaware Revised Uniform Limited Partnership Act primarily for the purpose of acquiring, holding, selling and otherwise dealing with a portfolio of mortgage revenue bonds (“MRBs”) that have been issued to provide construction and/or permanent financing for affordable multifamily and student housing residential properties and commercial properties. The Partnership has also invested in governmental issuer loans (“GILs”), which are similar to MRBs, to provide construction financing for affordable multifamily properties. The Partnership expects and believes the interest earned on these MRBs and GILs is excludable from gross income for federal income tax purposes. The Partnership may also invest in other types of securities, including taxable MRBs and taxable GILs secured by real estate and may make property loans to multifamily residential properties which may or may not be financed by MRBs or GILs held by the Partnership and may or may not be secured by real estate. The Partnership also makes noncontrolling equity investments in unconsolidated entities for the construction, stabilization, and ultimate sale of market-rate multifamily properties. The Partnership is entitled to distributions if, and when, cash is available for distribution either through operations, a refinance or a sale of the property. In addition, the Partnership may acquire and hold interests in multifamily, student and senior citizen residential properties (“MF Properties”) until the “highest and best use” can be determined by management. The Partnership is governed by the First Amended and Restated Agreement of Limited Partnership dated September 15, 2015, as further amended (the “Partnership Agreement”). Mortgage investments, as defined in the Partnership Agreement, consist of MRBs, taxable MRBs, GILs, taxable GILs and property loans. The Partnership Agreement authorizes the Partnership to make investments in tax-exempt securities other than in mortgage investments provided that the tax-exempt investments are rated in one of the four highest rating categories by a national securities rating agency. The Partnership Agreement also allows the Partnership to invest in other securities whose interest may be taxable for federal income tax purposes. Total tax-exempt investments and other investments cannot exceed 25% of the Partnership's total assets at the time of acquisition as required under the Partnership Agreement. Tax-exempt investments and other investments primarily consist of real estate assets and investments in unconsolidated entities. In addition, the amount of other investments is limited based on the conditions to the exemption from registration under the Investment Company Act of 1940. The Partnership’s sole general partner is America First Capital Associates Limited Partnership Two (“AFCA 2” or “General Partner”). The general partner of AFCA 2 is Greystone AF Manager LLC (“Greystone Manager”), an affiliate of Greystone & Co. II LLC (collectively with its affiliates, “Greystone”). The Partnership has issued Beneficial Unit Certificates (“BUCs”) representing assigned limited partnership interests to investors (“BUC holders”). The Partnership has designated three series of non-cumulative, non-voting, non-convertible preferred units (collectively, the “Preferred Units”) that represent limited partnership interests in the Partnership consisting of the Series A Preferred Units, the Series A-1 Preferred Units, and the Series B Preferred Units. The outstanding Series A Preferred Units and Series A-1 Preferred Units are redeemable in the future (Note 19). The Partnership had not yet issued Series B Preferred Units as of June 30, 2022. The holders of the BUCs and Preferred Units are referred to herein collectively as “Unitholders.”

Basis of Presentation

6 Months Ended

Jun. 30, 2022

1. Basis of Presentation

America First Multifamily Investors, L.P. (the “Partnership”) was formed on April 2, 1998, under the Delaware Revised Uniform Limited Partnership Act primarily for the purpose of acquiring, holding, selling and otherwise dealing with a portfolio of mortgage revenue bonds (“MRBs”) that have been issued to provide construction and/or permanent financing for affordable multifamily and student housing residential properties and commercial properties. The Partnership has also invested in governmental issuer loans (“GILs”), which are similar to MRBs, to provide construction financing for affordable multifamily properties. The Partnership expects and believes the interest earned on these MRBs and GILs is excludable from gross income for federal income tax purposes. The Partnership may also invest in other types of securities, including taxable MRBs and taxable GILs secured by real estate and may make property loans to multifamily residential properties which may or may not be financed by MRBs or GILs held by the Partnership and may or may not be secured by real estate.

The Partnership also makes noncontrolling equity investments in unconsolidated entities for the construction, stabilization, and ultimate sale of market-rate multifamily properties. The Partnership is entitled to distributions if, and when, cash is available for distribution either through operations, a refinance or a sale of the property. In addition, the Partnership may acquire and hold interests in multifamily, student and senior citizen residential properties (“MF Properties”) until the “highest and best use” can be determined by management.

The Partnership is governed by the First Amended and Restated Agreement of Limited Partnership dated September 15, 2015, as further amended (the “Partnership Agreement”). Mortgage investments, as defined in the Partnership Agreement, consist of MRBs, taxable MRBs, GILs, taxable GILs and property loans. The Partnership Agreement authorizes the Partnership to make investments in tax-exempt securities other than in mortgage investments provided that the tax-exempt investments are rated in one of the four highest rating categories by a national securities rating agency. The Partnership Agreement also allows the Partnership to invest in other securities whose interest may be taxable for federal income tax purposes. Total tax-exempt investments and other investments cannot exceed 25% of the Partnership's total assets at the time of acquisition as required under the Partnership Agreement. Tax-exempt investments and other investments primarily consist of real estate assets and investments in unconsolidated entities. In addition, the amount of other investments is limited based on the conditions to the exemption from registration under the Investment Company Act of 1940.

The Partnership’s sole general partner is America First Capital Associates Limited Partnership Two (“AFCA 2” or “General Partner”). The general partner of AFCA 2 is Greystone AF Manager LLC (“Greystone Manager”), an affiliate of Greystone & Co. II LLC (collectively with its affiliates, “Greystone”).

The Partnership has issued Beneficial Unit Certificates (“BUCs”) representing assigned limited partnership interests to investors (“BUC holders”). The Partnership has designated three series of non-cumulative, non-voting, non-convertible preferred units (collectively, the “Preferred Units”) that represent limited partnership interests in the Partnership consisting of the Series A Preferred Units, the Series A-1 Preferred Units, and the Series B Preferred Units. The outstanding Series A Preferred Units and Series A-1 Preferred Units are redeemable in the future (Note 19). The Partnership had not yet issued Series B Preferred Units as of June 30, 2022. The holders of the BUCs and Preferred Units are referred to herein collectively as “Unitholders.”