Michigan Compiled Laws, Chapter 490. Credit Unions § 490.57

Sec. 7. An account which states that a party is a trustee for 1 or more other identified persons, including but not limited to minors, is a trust account. Except where there is evidence of a trust other than as provided by the form of the account, the account and any sums withdrawn therefrom are presumed to belong beneficially to the trustee until his death. At the death of the trustee or surviving trustee any sums remaining on deposit are presumed to belong to the person or persons named as beneficiaries, if living, or to the survivor of them if 1 or more have died before the trustee. The death thereafter of any beneficiary has no effect on the equal ownership of all who survived the trustee, as no right of survivorship is presumed to attend the relationship of several beneficiaries who survive a trustee. If no beneficiary survives the trustee, the sums are presumed to belong to the estate of the last trustee to die. If 2 or more parties are named as trustees on the account, and there is no evidence of trust except as provide by the form of the account, the account is presumed to be a survivorship account as between trustees. It is presumed to be owned between trustees as provided by this act.