All files, statements, returns, reports, papers, or documents of any kind relating to the assessment of real property which are in the office of a county auditor or county board of revision or in the official custody or possession of such officer or board shall be open to public inspection.
Public inspection of documents relating to assessments
Ohio Rev. Code Ann. § 5715.07, under Chapter 5715 | Boards Of Revision; Equalization Of Assessments.
Ohio Rev. Code Ann. § 5715.07