Mich. Comp. Laws § 558.13: Barring of dower; joining in conveyance, release.

Sec. 13.

A married woman residing within this state may bar her right of dower in any estate conveyed by her husband or by his guardian, if he be under guardianship, by joining in the deed of conveyance and acknowledging the same as prescribed in the preceding chapter, or by joining with her husband in a subsequent deed, acknowledged in like manner; or by deed executed by the wife alone to one who has theretofore acquired and then holds the husband's title, provided the intent to bar her right of dower shall be expressed in said deed.