Mich. Comp. Laws § 700.3107: Proceedings; scope; independence.

Sec. 3107.

Unless a proceeding involves supervised administration as described in part 5 of this article, the following apply:

Each proceeding before the court or register is independent of any other proceeding involving the same estate.

A petition for a formal court order may combine various requests for relief in a single proceeding if the order sought may be a final order and may be granted without delay.

Except as required in this article for another proceeding, the following apply:

A petition is not defective because it fails to embrace all matters that might then be the subject of a final order.

A proceeding for probate of a will or an adjudication of no will may be combined with a proceeding for appointment of a personal representative.

A proceeding for appointment of a personal representative is concluded by an order making or declining the appointment.