Ohio Rev. Code Ann. § 3905.30
(A) As used in sections 3905.30 to 3905.38 of the Revised Code:
(1) Notwithstanding section 3905.01 of the Revised Code, "home state" means the state in which an insured maintains its principal place of business or, in the case of an individual, the individual's principal residence except in the case of either of the following: