N.Y. Surr. Ct. Proc. Act § 104
Each provision of this act relating to the jurisdiction of the surrogate's court over lifetime trusts or to take the proof of a will and to grant letters or appoint trustees or regulating the mode of procedure in any manner concerning a lifetime trust or an estate of a decedent applies unless otherwise expressly declared therein, whether the estate, if a lifetime trust, was created, or the will was made or the decedent died before or after this act takes effect. All acts hitherto of surrogates and officers acting as such by completing and certifying in their own names any uncertified wills, and by signing and certifying in their own names any uncertified records of wills, and of other proofs and examinations taken in the proceedings of probate thereof before their predecessors in office, are hereby confirmed and declared to be valid and in full compliance with the pre-existing statutory requirements.
N.Y. Surr. Ct. Proc. Act Law § 104