Ohio Rev. Code § 709.14: Preliminary action by legislative authority.

The legislative authority of a municipal corporation that proposes to annex contiguous territory shall pass, by a vote of not less than a majority of the members elected to the legislative authority, an ordinance authorizing the annexation to be made and directing the village solicitor or city director of law of the municipal corporation, or someone to be named in the ordinance, to prosecute the proceedings necessary to effect it.