Mich. Comp. Laws § 168.402: Supreme court justices; vacancy, creation.

Sec. 402.

The office of justice of the supreme court shall become vacant upon the happening of any of the following events: Death of the incumbent; his resignation; his removal from office for cause; his ceasing to be a resident of the state; his conviction of an infamous crime, or an offense involving the violation of his oath of office; the decision of a competent tribunal declaring his election or appointment void; or his neglect or refusal to take and subscribe to the constitutional oath of office and deposit the same in the manner and within the time prescribed by law.