Michigan Compiled Laws, Chapter 720. Probate § 720.217

Sec. 17. Whenever any county public administrator shall have been appointed fiduciary of any estate by virtue of the provisions of this act, and more than 1 year shall have elapsed since the date of issuance of letters of administration to such fiduciary, and said estate shall not have been closed, the said fiduciary shall in writing inform the state public administrator of the facts and circumstances preventing the closing of such estate.