Divorce

I need help finding a lawyer thats probono or very cheap. I have been separated 3 yrs he will not sign the divorce agreement we agreed on since he does not want to pay me half of his military retirement. He is holding me hostage in thr marriage and is strangling my life. I am stuck financially and am not able to buy a house or do anything from all the debt he still has my name on. He refuses to get the bills out of my name from the house he kept with my kids since I could not afford the mortgage. I have had enough years of his narcissistic abuse and verbal abuse. I want to be free of him and have given to me what I earned and deserve. Any info is appreciated