Michigan Compiled Laws, Chapter 205. Taxation § 205.248

Sec. 48. Upon the request of the department each probate court of this state, on or before the tenth day of every month, shall notify the department of the names of all decedents; the names and addresses of the respective personal representatives appointed; the amount of the bonds, if any, required by the court; and the probable value of the estates, in all estates of decedents whose wills have been probated or upon which letters of authority have been sought or granted during the preceding month. A probate court shall also furnish any further information from the records and files of the probate court in regard to those estates requested by the department.