Michigan Compiled Laws, Chapter 700. Estates and Protected Individuals Code § 700.5316

Sec. 5316. To encourage self-reliance and independence in a legally incapacitated individual, the court may authorize the individual to function without the consent or supervision of the individual's guardian or conservator in handling part of his or her money or property, including authorizing the individual to maintain an account with a financial institution. To the extent the individual is authorized to function autonomously, a person may deal with the individual as though the individual is mentally competent.