N.Y. Dom. Rel. Law § 83
A general guardian or guardian in socage shall safely keep the property of his ward that shall come into his custody, and shall not make or suffer any waste, sale or destruction of such property or inheritance, but shall keep in repair and maintain the houses, gardens and other appurtenances to the lands of his ward, by and with the issues and profits thereof, or with such other moneys belonging to his ward as shall be in his possession; and shall deliver the same to his ward, when he comes to full age, in at least as good condition as such guardian received the same, inevitable decay and injury only excepted; and shall answer to his ward for the issues and profits of the real estate, received by him, by a lawful account, to be settled before any court, judge or surrogate having authority to settle the accounts of general and testamentary guardians; and any order, judgment or decree in any action or proceeding to settle such accounts may be enforced to the same extent, and in like manner as in the case of general and testamentary guardians. If any guardian shall make or suffer any waste, sale or destruction of the inheritance of his ward, he shall lose the custody of the same, and of such ward, and shall be liable to the ward for any damage caused thereby.
N.Y. Dom. Rel.Law § 83