N.Y. CVP Law § 6213

§ 6213. Service of summons. An order of attachment granted before\nservice is made on the defendant against whom the attachment is granted\nis valid only if, within sixty days after the order is granted, a\nsummons is served upon the defendant or first publication of the summons\nagainst the defendant is made pursuant to an order and publication is\nsubsequently completed, except that a person upon whom the order of\nattachment is served shall not be liable for acting upon it as if it\nwere valid without knowledge of the invalidity. If the defendant dies\nwithin sixty days after the order is granted and before the summons is\nserved upon him or publication is completed, the order is valid only if\nthe summons is served upon his executor or administrator within sixty\ndays after letters are issued. Upon such terms as may be just and upon\ngood cause shown the court may extend the time, not exceeding sixty\ndays, within which the summons must be served or publication commenced\npursuant to this section, provided that the application for extension is\nmade before the expiration of the time fixed.\n