Exception. A recipient or subrecipient will not be required to comply with the terms and conditions prescribed under paragraphs (c) and (d) of this section if:
(1) The sale or disposition of the property used for the project results in the use of the property for the direct benefit of very low-income persons;
(2) All the proceeds are used to provide transitional or permanent housing that meet the requirements of this part;
(3) Project-based rental assistance or operating cost assistance from any federal program or an equivalent State or local program is no longer made available and the project is meeting applicable performance standards, provided that the portion of the project that had benefitted from such assistance continues to meet the tenant income and rent restrictions for low-income units under section 42(g) of the Internal Revenue Code of 1986; or
(4) There are no individuals and families in the Continuum of Care geographic area who are homeless, in which case the project may serve individuals and families at risk of homelessness.
24 CFR § 578.81
In general. All recipients and subrecipients receiving grant funds for acquisition, rehabilitation, or new construction must operate the housing or provide supportive services in accordance with this part, for at least 15 years from the date of initial occupancy or date of initial service provision. Recipient and subrecipients must execute and record a HUD-approved Declaration of Restrictive Covenants before receiving payment of grant funds.