N.Y. State Law § 55: Delivery and filing of deeds and releases

§ 55. Delivery and filing of deeds and releases. One of the deeds or

releases so executed in duplicate shall be delivered to the duly

authorized agent of the United States, and the other deed or release

shall be filed and recorded in the office of the secretary of state of

the state of New York; and said deed or release shall become valid and

effectual only upon such filing and recording in said office.