How do I go about getting a co-signers name off of a loan if

Posted In: Mortgage Community
How do I go about getting a co-signers name off of a loan if they refuse to sign a quit claim deed? I have a home loan and home in my significant others name and mine and he refuses to sign a quit claim deed. He has not paid on a mortgage payment since we have been in the home over a year. I would like to have the title and loan in my name only but would like to know how to go about doing this legally?