N.Y. Real Prop. Tax Law § 995
Real property owned by a municipal corporation shall not be sold or conveyed by foreclosure or otherwise for the nonpayment of any tax or special assessment. Any tax or special assessment validly levied or charged against real property owned by a municipal corporation shall be paid in the same manner as a general municipal charge. If any such tax or special assessment remains unpaid for more than sixty days after demand therefor in writing has been filed with the chief executive officer or clerk of such municipal corporation, payment may be enforced by a proceeding brought pursuant to article seventy-eight of the civil practice law and rules. If the municipal corporation owning the real property determines that the value thereof is insufficient to justify payment of the tax or special assessment levied thereon, in lieu of payment it may consent to an order directing sale of the property at public auction on such notice as the court may order to satisfy the claim.
N.Y. Real Prop. Tax. Law § 995