Ohio Rev. Code § 303.33
Following the public hearing required by section 303.32 of the Revised Code, the board of county commissioners may approve a county renewal project for the county renewal area if it finds that a feasible method exists for the location of families who will be displaced from the county renewal area in decent, safe, and sanitary dwelling accommodations within their means and without undue hardship to such families; the county renewal plan conforms to the general plan of the county; and the county renewal plan will afford maximum opportunity, consistent with the sound needs of the county, for the rehabilitation or redevelopment of the county renewal area by private enterprise. If the county renewal area consists of an area of open land to be acquired by the county, such area shall not be so acquired unless, if it is to be redeveloped for residential uses, the board determines that a shortage of housing of sound standards and design which is decent, safe, and sanitary exists in the county; that the need of housing accommodations has been or will be increased as a result of the clearance of slums in other areas, including other portions of the county renewal area; that the conditions of blight in the area and the shortage of decent, safe, and sanitary housing cause or contributed to an increase in and spread of disease and crime and constitute a menace to the public health, safety, morals, or welfare; and that the acquisition of the area for residential uses is an integral part of and essential to the program of the county, or, if it is to be developed for nonresidential uses, the board determines that such nonresidential uses are necessary and appropriate to facilitate the proper growth and development of the county in accordance with sound planning standards and county objectives, which acquisition may require the exercise of governmental action, as provided in sections 303.26 to 303.56, inclusive, of the Revised Code, because of defective or unusual conditions of title, diversity of ownership, tax delinquency, improper subdivisions, outmoded street patterns, deterioration of site, economic disuse, unsuitable topography, or faulty lot layouts, the need for the correlation of the area with other areas of the county by streets and modern traffic requirements, or any combination of such factors or other conditions which retard development of the area.
R.C. §303.33