Ohio Rev. Code Ann. § 1109.44
(C)
(2) A bank service corporation shall be owned solely by one or more depository institutions, and may, at any location, do any of the following:
(E) Only if the company in which the investment is to be made qualifies as either a bank subsidiary corporation or a bank service corporation under this section may a bank invest in securities pursuant to section 1109.39 of the Revised Code or make investments pursuant to section 1109.40 of the Revised Code that result in any of the following: