N.Y. Mental Hygiene Law § 81.21
6. whether the incapacitated person has previously executed a will or similar instrument and if so, the terms of the most recently executed will together with a statement as to how the terms of the will became known to the petitioner or guardian; for purposes of this article, the term "will" shall have the meaning specified in section 1-2.19 of the estates, powers and trusts law and "similar instrument" shall include a revocable or irrevocable trust: