Mich. Comp. Laws § 700.5416 : ESTATES AND PROTECTED INDIVIDUALS CODE —ESTATES AND PROTECTED INDIVIDUALS CODE — PROTECTION OF AN INDIVIDUAL UNDER DISABILITY AND HIS OR HER PROPERTY — PROTECTION OF PROPERTY OF AN INDIVIDUAL UNDER DISABILITY OR OF A MINOR — General duty of conservator
In relation to powers conferred by this part or implicit in the title acquired by virtue of the proceeding, a conservator shall act as a fiduciary and observe the standard of care applicable to a trustee.