Ohio Rev. Code § 6103.07
After the adoption of a resolution to proceed with an improvement as provided in section 6103.06 of the Revised Code, the construction of the improvement shall be deferred until ten days have elapsed. If, at the expiration of that period, no appeal has been effected by any property owner as provided in sections 6117.09 to 6117.24 of the Revised Code, the action of the board of county commissioners shall be final, and the board may proceed to issue or incur public obligations and construct the improvement. If, at the end of that ten days, any owner of property to be assessed for the improvement has effected an appeal, the construction of the improvement shall be deferred until the matters appealed from have been disposed of in court.
R.C. § 6103.07