Ohio Rev. Code § 2107.47: Protection of purchaser against will or later will.

(A) The title, estate, or interest of a bona fide purchaser, lessee, or encumbrancer, for value, in real property situated in this state, that is derived from an heir of a decedent and acquired without knowledge of a will of the decedent that effectively disposes of it to another person, shall not be defeated by the production of a will of the decedent, unless, in the case of a resident decedent, the will is offered for probate within three months after the death of the decedent, or unless, in the case of a nonresident decedent, the will is offered for record in this state within three months after the death of the decedent.

(B) The title, estate, or interest of a bona fide purchaser, lessee, or encumbrancer, for value, in real property situated in this state, that is derived from a beneficiary under a will of a decedent and acquired without knowledge of a later will of the decedent that effectively disposes of it to another person, shall not be defeated by the production of a later will of the decedent, unless, in the case of a resident decedent, the later will is offered for probate within three months after the death of the decedent, or unless, in the case of a nonresident decedent, the later will is offered for record in this state within three months after the death of the decedent.