Mich. Comp. Laws § 487.11106
The use of the word "bank", "banker", or "banking" or any foreign language words of similar meaning as a designation or name, or part of a designation or name under which business is or may be conducted in this state, is restricted to a national bank, a bank subject to this act, an out-of-state bank, a bank holding company registered under the bank holding company act, a foreign bank agency, a foreign bank branch, a savings and loan holding company as defined in 12 C.F.R. 583.20, or a savings bank that is lawfully conducting business in this state, unless that designation or name, taken as a whole, would not imply a banking business. Use of the term "mortgage banker" or "mortgage banking" in the name or assumed name of a licensee or registrant under the mortgage brokers, lenders, and servicers licensing act, 1987 PA 173, MCL 445.1651 to 445.1684, does not violate this section.
MCL 487.11106