Absent some sort of threat to the other co-owner's well being, one owner cannot make make another owner vacate a jointly owned premises.The fact is that, under the circumstances, if you wanted to you could file for "partition". This is a legal remedy employed when 2 owners of jointly owned real estate cannot agree as to ownership matters. Accordingly the property will be "partitioned"; that is divided if it is practical to do so. However, in the case of a single family home, that can't be divided the court will instead force a sale of the property at fair market value with the proceeds to be equitably divided.Perhaps, at this point, you should consult directly with a local real estate attorney as to your rights/remedies under applicable state law.