N.Y. Real Property Law § 476
1. For a private transfer fee obligation imposed prior to the effective date of this section, the receiver of the fee shall record, prior to six months after the effective date of this section, against the real property subject to the private transfer fee obligation a separate document in the county records in which the real property is located that meets all of the following requirements:
6. When recorded, an affidavit as described in subdivision five of this section shall constitute conclusive evidence that: