My girlfriend and I lived on a house we purchased together.Her is on the mo

My girlfriend and I lived on a house we purchased together.Her is on the mortgage and the deed we can't come to any agreement on the house that we both feel is fair. Meanwhile she has been gone for over a year and I've paying the Mortgage. Is there any way to refinance without her? I read online you can do a FHA Streamline mortgage and remove the other borrower if you have been paying the mortgage for a year. Is this correct and do you have any other advice? Thank you.