New York Consolidated Laws, Surrogate's Court Procedure Act - SCP § 1753. Persons to be served

(a) the parent or parents, adult children, if the petitioner is other than a parent, adult siblings, if the petitioner is other than a parent, and if the person who is intellectually disabled or person who is developmentally disabled is married, to the spouse, if their residences are known;

(b) the person having care and custody of the person who is intellectually disabled or person who is developmentally disabled, or with whom such person resides if other than the parents or spouse;  and

(c) the person who is intellectually disabled or person who is developmentally disabled if fourteen years of age or older for whom an application has been made in such person's behalf.

(a) the adult siblings if the petitioner is a parent, and adult children if the petitioner is a parent;

(b) the mental hygiene legal service in the judicial department where the facility, as defined in subdivision (a) of section 47.01 of the mental hygiene law, is located if the person who is intellectually disabled or person who is developmentally disabled resides in such a facility;

(c) in all cases, to the director in charge of a facility licensed or operated by an agency of the state of New York, if the person who is intellectually disabled or person who is developmentally disabled resides in such facility;

(d) one other person if designated in writing by the person who is intellectually disabled or person who is developmentally disabled;  and

(e) such other persons as the court may deem proper.