Mich. Comp. Laws § 129.45: “Financial institution” defined.

Sec. 5.

As used in this act, "financial institution" means a state or nationally chartered bank or a state or federally chartered savings and loan association, savings bank, or credit union whose deposits are insured by an agency of the United States government and which maintains a principal office or branch office located in this state under the laws of this state or the United States.