Ohio bankruptcy homestead exemption laws, if I file Ch.7 will I be able to keep both houses

My best advise to you is to seek the advise of a competent bankruptcy lawyer. Most bankruptcy lawyers offer a first visit free consultation. Make sure that you select an attorney that has been practicing law for a considerable period of time and who's emphasis is on bankruptcy law. When you call to make an appointment I would find out what documents you should bring to your meeting in order to get the maximum benefit from your free consultation.
It is sometimes possible to keep houses in which there is no equity when you file a chapter 7 but the first step is to determine whether you pass "The Means Test". If you don't a chapter 7 is not available to you. If you file a chapter 13 keeping the second property is probably not likely.