A petition for the appointment of a guardian of the person or property, or both, of a person who is intellectually disabled or a person who is developmentally disabled may be made by a parent, any interested person eighteen years of age or older on behalf of the person who is intellectually disabled or a person who is developmentally disabled including a corporation authorized to serve as a guardian as provided for by this article, or by the person who is intellectually disabled or a person who is developmentally disabled when such person is eighteen years of age or older.
N.Y. Surr. Ct. Proc. Act Law § 1751