Michigan Compiled Laws, Chapter 700. Estates and Protected Individuals Code § 700.7609

(a) The claimant may mail or deliver to the trustee a written statement of the claim indicating its basis, the name and address of the claimant, and the amount claimed. The claim is considered presented on the trustee's receipt of the claim. If a claim is not yet due, the date when it will become due shall be stated. If the claim is contingent or unliquidated, the nature of the uncertainty shall be stated. If the claim is secured, the security shall be described. Failure to describe correctly the security, the nature of any uncertainty, and the due date of a claim not yet due does not invalidate a claim's presentation.

(b) The claimant may commence a proceeding to obtain payment of a claim against the trust in a court where the trustee is subject to jurisdiction. The commencement of the proceeding shall occur within the time limit for presenting the claim. Presentation of a claim is not required in regard to matters claimed in proceedings against the trust or settlor that were pending at the time of the settlor's death.