Ohio Rev. Code § 3115.104: Remedies cumulative.

(A) Remedies provided by this chapter are cumulative and do not affect the availability of remedies under other law or the recognition of a foreign support order on the basis of comity.

(B) This chapter does not do either of the following:

(1) Provide the exclusive method of establishing or enforcing a support order under the law of this state;

(2) Grant a tribunal of this state jurisdiction to render judgment or issue an order relating to child custody or visitation in a proceeding under this chapter.