Ohio Revised Code Title III. Counties § 301.15

(A) By publication in the print or digital edition of a newspaper of general circulation in the county;

(B) On the official public notice web site established under section 125.182 of the Revised Code;

(C) On the web site and social media account of the county.

When assembled, after having taken the oath of office prescribed by sections 3.22 and 3.23 of the Revised Code, such commissioners shall proceed to examine and select the most proper place as a seat of justice, as near the center of the county as possible, having regard to the situation, extent of population, quality of land, and the convenience and interest of the inhabitants.