Hawaii Revised Statutes Division 3. Property; Family § 560:5-209

(1) Legally obligated to use the guardian's personal funds for the ward's expenses;

(2) Unless otherwise provided in the contract, individually liable on a contract properly entered into in the guardian's representative capacity in the exercise of the duties and powers as guardian unless the guardian fails to reveal the guardian's capacity and the identity of the ward in the contract;

(3) Personally liable to a third person for acts of the ward solely by reason of the guardianship; and

(4) Personally liable for injury to the ward resulting from the negligence or act of a third person providing medical or other care, treatment, or service to the ward except to the extent that a parent would be liable under the circumstances.