N.Y. Surr. Ct. Proc. Act § 1723

§ 1723. Powers of a guardian of the property.\n 1. A guardian of the property of an infant shall protect, preserve and\nmanage the property of the infant. He shall have the power to sell the\npersonal property of the infant for any purpose connected with the\nfaithful discharge of his trust, including investing such property or\nthe proceeds thereof, changing investments and disposing of investments,\nexcept where his authority is otherwise limited by court order or\ndecree, or in the case of a testamentary guardian, by the terms of the\nwill which appointed him.\n