What should I do if he won’t sign the home modification unless I sign a paper saying that I won’t touch his pension and SSS when the time comes?

In 2006, my husband was removed from the home due to domestic violence. This time he hit his son. I was abused for many years but when he hit his son, he cross the line. I live 24 years of being abused and battered. He had not returned and I inherited all the bills with raising two children. We bought the house in 2004 and he was removed since 2006. I have been paying the Mortgage all by myself with all the other expenses. I want to court in 2007 for child support but he was nowhere to be found. He works for The Iron works local 40 & 361 and makes three times more than me. I cannot afford a lawyer and make too much for legal aid. After researching, I have found that someone may work for me if a lawyer would help me to make him responsible for all the cost of the divorce. All I have is my home in which I wanted to modify but he won’t sign. I don’t want to lose my right. I need help or I will lose my home. He won’t divorce me unless I sign. What can you do for me? I’ve hit so many back walls that I don’t know what to do. Would you help me? His pension is worth more than my home. Find it in your heart to help me.