Ohio Rev. Code § 6101.43
No fault in any notice or other proceedings, whether by reason of noncompliance with the requirements of this chapter or with any applicable constitutional requirements, or otherwise, shall affect the validity of any proceeding under this chapter, except to the extent to which it can be shown that the fault resulted in a material denial of justice to the property owner or public corporation complaining of the fault.
If it is found upon a hearing that, by reason of some irregularity or defect in the proceedings, the appraisal has not been properly made, the court may nevertheless, on having proof that expense has been incurred which is a proper charge against the property of the person, or against the public corporation, complaining of the irregularity or defect, render a finding as to the amount of benefits to the property or public corporation, and appraise the proper benefits accordingly, subject to a claim for a jury as provided in section 6101.35 of the Revised Code, where the party is entitled to it. At that time, the land or public corporation shall be assessed as other land or public corporations equally benefited. If, at any time either before or after the issuance of bonds or notes pursuant to this chapter, the appraisal of benefits, either as a whole or in part, is declared by any court of competent jurisdiction to be invalid by reason of any defect or irregularity in the proceedings, whether jurisdictional or by reason of noncompliance with any of the requirements of this chapter or with any applicable constitutional requirements, or otherwise, the court of common pleas, on the application of the board of directors of the conservancy district or on the application of any holder of any bonds or notes that have been issued pursuant to this chapter, shall promptly and without delay remedy, or cause to be remedied, all defects or irregularities as the case requires and, for the purpose, may direct the board of appraisers of the conservancy district to make, in the manner provided in section 6101.28 of the Revised Code, a new appraisal of the amount of benefits against the whole or any part of the lands or any public corporation in the district as the case requires and may order a new hearing to be held after giving of notice of the hearing in compliance with the requirements of this chapter, or such other and further notice as the court shall prescribe to comply with any applicable constitutional requirements.
R.C. § 6101.43