N.Y. Surrogate's Court Procedure Act § 1922: Conclusive presumption after 10 years

§ 1922. Conclusive presumption after 10 years.

An action or proceeding to set aside any disposition of the real

property of a decedent pursuant to an order granted under this article

or under article 13 of the surrogate's court act by reason of lack of

jurisdiction over any person interested in the estate or by reason of

any other defect in the procedure must be brought within 10 years after

the date of the order or within 1 year after the effective date of this

article, whichever date is later. After the lapse of such period the

presumption that the order was regular in all respects and that the

court had jurisdiction of all persons interested in the estate becomes

conclusive.