(a) At any hearing hereunder, the court may appoint guardians ad litem to represent any client in matters of admission or retention under the provisions of this law. It shall be the duty of the guardian ad litem to make an investigation of the facts, and to report the facts to the court with his or her recommendations, if any.
(b) The guardian ad litem shall be paid for his or her services, in an amount to be approved by the court, and the guardian ad litem’s services shall be paid from the estate of the client, or if so ordered by the court, shall be paid by the state and reimbursement shall be had by the state from the estate and assets of the developmentally disabled person in the manner as reimbursement for care and treatment is had by the state.