N.Y. Real Prop. Tax Law § 1131

§ 1131. Default judgment. In the event of a failure to redeem or\nanswer by any person having the right to redeem or answer, such person\nshall forever be barred and foreclosed of all right, title, and interest\nand equity of redemption in and to the parcel in which the person has an\ninterest and a judgment in foreclosure may be taken by default as\nprovided by subdivision three of section eleven hundred thirty-six of\nthis title. A motion to reopen any such default may not be brought later\nthan one month after entry of the judgment.\n