N.Y.C. Admin. Code § 11-408: § 11-408 Filing of affidavits.

All affidavits of filing, publication, posting, mailing or other acts required by this chapter shall be made by the person or persons performing such acts and shall be filed in the office of the county clerk of the county in which the property subject to such tax lien is situated and shall together with all other documents required by this chapter to be filed in the office of such county clerk, constitute and become a part of the judgment roll in such foreclosure action.