Ohio Rev. Code § 6103.06
After the expiration of the period of five days provided in section 6103.05 of the Revised Code for the filing of written objections, the board of county commissioners shall determine whether it will proceed with the construction of the proposed improvement. If it decides to proceed therewith, the board shall ratify or amend the plans for the improvement, the character and termini thereof, the boundaries of the assessment district, and the tentative assessment, and may cause such revision of plans, boundaries, or assessments as is necessary to be made by the county sanitary engineer. If the boundaries of the assessment district are amended so as to include any property not included within the boundaries as established by the resolution of necessity, provided for in section 6103.05 of the Revised Code, the owners of all such property shall be notified by mail if their addresses are known, and notice shall be published once a week for two consecutive weeks in a newspaper of general circulation within the county or as provided in section 7.16 of the Revised Code, that such amendments have been adopted and that a hearing will be given by the board at a time and place stated in such notice at which all persons interested will be heard by the board. The date of such hearing shall be not less than twenty-four days after the first publication of such notice, and the hearing shall be conducted and records kept in the same manner as the first hearing. Five days shall be allowed for the filing of written objections as provided in section 6103.05 of the Revised Code for the first hearing and after the expiration of such five day period the board shall ratify the plans for the improvement, the character and termini thereof, the boundaries of the assessment district, and the tentative assessment, or shall further amend the same. If the boundaries of the assessment district are amended so as to include any property not included in the assessment district as originally established or previously amended, further notice and hearing shall be given to the owners of such property in the same manner as for the first amendment of such boundaries, and the same procedure shall be repeated until all property owners affected have been given an opportunity to be heard. If the owners of all property added to an assessment district by amendment of the original boundaries thereof waive objection to such amendment in writing, no further notice or hearing shall be given. After the board has ratified the plans for the improvement, the character and termini thereof, the boundaries of the assessment district, and the tentative assessment, either as originally presented or as amended, and if it decides to proceed therewith, the board shall adopt a resolution, to be known as the improvement resolution. Said improvement resolution shall declare the determination of such board to proceed with the construction of the improvement provided for in the resolution of necessity, in accordance with the plans and specification provided for such improvement, as ratified or amended, and whether bonds or certificates of indebtedness shall be issued in anticipation of the collection of special assessments, or that money in the county treasury unappropriated for any other purpose shall be appropriated to pay for said improvement.
R.C. § 6103.06