Mich. Comp. Laws § 168.933a: Forgery; definition.

Sec. 933a.

Except as otherwise provided in this act, a person who does either of the following for any purpose under this act is guilty of forgery:

(a) Knowingly makes, files, or otherwise publishes a false document with the intent to defraud.

(b) Knowingly makes, files, or otherwise publishes a document that contains false signatures with the intent to defraud.