You don't have to accept any proposed settlement he offers . With a long term marriage and a large disparity in incomes you are most likely eligible for permanent alimony . Your ex would be required to pay child support ( age of majority is 19 but CS can be extended if a child is physically or mentally disabled ) . All marital property would be split equitably , that means the party that needs more would receive more . Your STBX could also be required to pay your legal fees . Please consult with an attorney in your area .