N.Y. Comp. Codes R. & Regs. tit. 9, § 1933.1
(c) Written leases are required for all tenants in a project assisted hereunder. Said lease must include a provision that those tenants 60 years of age or older or tenants subject to a disability as defined in New York State Executive Law, article 15, section 292, who have a lease for a rental unit in a project at the time the resale and occupancy restrictions end shall be permitted to renew their lease for the remainder of their occupancy at rents that will be affordable to them (total housing costs that are less than 30 percent of the income limits as defined in section 1930.2[e] of this Title), except that the tenant may be evicted for good cause in accordance with applicable laws and rules.
(d) Tenant income verification.