Mich. Comp. Laws § 765.8: Surety or bail posted by attorney or counselor prohibited.

Sec. 8.

A practicing attorney or counselor shall not become a surety or post bail for the appearance of a person charged with a felony, a misdemeanor, or an ordinance violation. A surety or bail posted by an attorney or counselor in violation of this section, taken by a judge or other officer authorized by law to take a recognizance, is void.