Ohio Rev. Code § 6135.03: Organizational meeting.

After receiving notice by the clerk of the board of county commissioners of the time and place of the meeting as provided in section 6135.02 of the Revised Code, the boards of county commissioners shall proceed at such time and place to form themselves into a joint board for the purpose before them by electing one of their number as president and another as clerk. The president and clerk shall not both be selected from the board representing the same state, and a majority of each proper board must be present to constitute a quorum.