Mich. Comp. Laws § 338.833

Sec. 13. Any change in the name or location of the agency or of a branch office or subagency shall be reported to the department at least 30 days before the change becomes effective. Upon receipt of the notice of change of name or location, the department shall prepare and forward a license showing the change and the licensee shall return the old license within 3 business days after the change.