Ohio Rev. Code Ann. § 5305.01

When the lands of a deceased person are not encumbered by mortgage, or by judgment obtained against such decedent during life, the heir, guardian of an heir, or other person having the next immediate estate of inheritance, may assign in writing to the surviving spouse, dower therein, particularly describing such estate, which, if approved in writing on the deed of assignment by the probate judge of the county, and also by the probate judge of the county appointing such guardian, and accepted by such spouse, in writing thereon, shall be a valid assignment.