Mich. Comp. Laws § 700.7206: Court; concurrent jurisdiction of litigation involving trusts and third parties.

Sec. 7206.

The court where a trust is registered has concurrent jurisdiction with other courts of this state of an action or proceeding to determine the existence or nonexistence of the trust if created other than by will, of an action or proceeding against a creditor or debtor of the trust, and of another action or proceeding that involves a trustee and a third party.