Michigan Compiled Laws, Chapter 700. Estates and Protected Individuals Code § 700.2807

Sec. 2807. (1) Except as provided by the express terms of a governing instrument, court order, or contract relating to the division of the marital estate made between the divorced individuals before or after the marriage, divorce, or annulment, the divorce or annulment of a marriage does all of the following:

(2) A severance under subsection (1)(b) does not affect a third-party interest in property acquired for value and in good faith reliance on an apparent title by survivorship in the survivor of the former spouses unless a writing declaring the severance has been noted, registered, filed, or recorded in records appropriate to the kind and location of the property that are relied on, in the ordinary course of transactions involving that type of property, as evidence of ownership.

(3) Each provision of a governing instrument is given effect as if the former spouse and relatives of the former spouse disclaimed all provisions revoked by this section or, for a revoked nomination in a fiduciary or representative capacity, as if the former spouse and relatives of the former spouse died immediately before the divorce or annulment.

(4) Each provision revoked solely by this section is revived by the divorced individual's remarriage to the former spouse or by a nullification of the divorce or annulment.

(5) No change of circumstances other than as described in this section and in sections 2803 to 2805, 2808, and 2809  2 causes a revocation.