Michigan Compiled Laws, Chapter 29. Fire Prevention § 29.15

Sec. 15. A mortgagee of record shall be, and any other lien holder, person in possession, other than the owner, and all other persons interested in the lands or premises described in the petition described in section 13,  1 may be brought in as a party defendant to the cause by the service on the lien holder or other person at least 10 days before the return day of the order, or in any other manner as the court directs, of a copy of the order to show cause. It shall not be necessary to serve upon the lien holder or other person the order of the state fire marshal described in section 9.  2