N.Y. Public Housing Law § 121

§ 121. Acquisition after project approved. When a project has been\napproved, an authority may purchase, lease or condemn, or obligate\nitself to purchase, lease or condemn, real property for a project.\nNotwithstanding any other provisions of and in addition to any other\npowers granted under this chapter, where all the dwelling units in a\nbuilding have been leased by an authority for occupancy by persons or\nfamilies of low income in accordance with the provisions of section\ntwenty-three of the United States housing act of nineteen hundred\nthirty-seven, as amended, the prior approval by the local legislative\nbody of such leasing program shall constitute all necessary approvals\nunder this chapter for an authority to exercise an option to purchase\nsuch real property.\n