Ohio Rev. Code § 2111.25
A guardian of the person and estate or of the estate only, without application to the probate court, may lease the possession or use of any real property of the ward for a term not exceeding three years, provided the term does not extend beyond the minority, if the ward is a minor. If the lease extends beyond the death of the ward or beyond the removal of the disability of a ward other than a minor, the lease shall terminate on that death or removal of disability, unless confirmed by the ward or the ward's legal representatives. In the event of such determination, the tenant shall have a lien on the premises for any sum expended by the tenant in pursuance of the lease in making improvements for which compensation was not made in rent or otherwise.
R.C. § 2111.25