N.Y. Real Property Actions & Proceedings Law § 531

§ 531. Adverse possession, how affected by relation of landlord and\ntenant. Where the relation of landlord and tenant has existed, the\npossession of the tenant is deemed the possession of the landlord until\nthe expiration of ten years after the termination of the tenancy; or,\nwhere there has been no written lease, until the expiration of ten years\nafter the last payment of rent; notwithstanding that the tenant has\nacquired another title or has claimed to hold adversely to his landlord.\nBut this presumption shall cease after the periods prescribed in this\nsection and such tenant may then commence to hold adversely to his\nlandlord.\n