Ohio Rev. Code Ann. § 4909.053

Each utility-valuation expert employed under section 4909.052 of the Revised Code shall return the appraisal required under that section, in writing, to both companies described in that section in a reasonable and timely manner. All appraisals shall be included in any filing associated with the acquisition under section 4905.481 or 4909.052 of the Revised Code.