Ohio Rev. Code § 727.18
An owner of a lot or parcel of land, claiming that he will sustain damages by reason of a proposed public improvement, to be paid for in whole or in part by special assessments, shall, within two weeks from the date of completion of the notice required under section 727.13 of the Revised Code, file a claim in writing with the clerk of the legislative authority of the municipal corporation, setting forth the amount of the damages claimed and a general description of the property with respect to which it is claimed such damages will accrue. An owner who fails to file such claim, shall be deemed to have waived damages and shall be barred from filing a claim or receiving damages. This section applies to all damages which will obviously result from the improvement, but shall not deprive the owner of his right to recover damages arising, without his fault, from the acts of the municipal corporation or its agents. If, subsequent to the filing of such claim, the owner sells the property, or any part thereof, the assignee has the same right to damages which the owner would have had without the transfer.
R.C. §727.18