Ohio Rev. Code § 303.43
In the event a board of county commissioners instituted assessment proceedings affecting lots or lands within a county renewal area, and then or thereafter eminent domain proceedings arising under sections 303.26 to 303.56, inclusive, of the Revised Code, are pending or contemplated against such lots or lands, the board may, by proper entry in such eminent domain proceedings, or by release in the event eminent domain proceedings are never brought, waive its right to collection out of the compensation awarded for such taking of the amounts levied or to be levied in such assessment proceedings. In the event of such waiver, the said assessment proceedings and the property liens resulting therefrom shall not be affected by the acquisition by the board of any or all of such lots or lands.
R.C. §303.43