Michigan Compiled Laws, Chapter 700. Estates and Protected Individuals Code § 700.3908

Sec. 3908. After the probable charges against the estate are known, the personal representative may mail or deliver a proposal for distribution to all persons who have a right to object to the proposed distribution. The right of a distributee to object to the proposed distribution on the basis of the kind or value of property the distributee is to receive, if not waived earlier in writing, terminates if the distributee fails to object in a writing received by the personal representative within 28 days after mailing or delivery of the proposal.