Michigan Compiled Laws, Chapter 720. Probate § 720.209

Sec. 9. In case of a vacancy occurring in the office of state public administrator from any cause, it shall be the duty of the governor and the attorney general to fill such vacancy forthwith in the manner as in this act provided for appointment of a state public administrator. Upon qualification for such office the succeeding state public administrator shall be the fiduciary of any unclosed estate to which his predecessor was appointed fiduciary under the provisions of this act, and he shall forthwith notify each probate court having jurisdiction of any such unclosed estate of such appointment, and such successor state public administrator shall be entitled to the possession of all the property, bank accounts, books, papers and records pertaining to any such estate, and shall, under the direction of said probate court, proceed to completion of administration of any such estate. The bond of such predecessor fiduciary may be continued as the bond of the new appointee, with the consent of the surety or sureties thereon, but in the event of a new bond being filed, the surety, if a corporation, shall refund the unearned premium on such cancelled bond.