Mich. Comp. Laws § 750.259

Sec. 259. Affixing fictitious signature—If any fictitious or pretended signature, purporting to be the signature of an officer or agent of any corporation, shall be fraudulently affixed to any instrument or writing, purporting to be a note, draft or other evidence of debt, issued by said corporation, with intent to pass the same as true, it shall be deemed a forgery, though no such person may ever have been an officer or agent of such corporation, nor ever have existed.