If you and your spouse decide to get divorced, and you can agree on issues such as property rights, spousal and child support obligations, and custody and visitation arrangements, then you may want to enter into a. Although the document is legally binding, and in the case of uncontested divorce you likely agreed to all these terms, you may want these terms changed in the future. New york state divorce on the conversion of a judgment of separation ground. A marital settlement agreement is a legal document that allows a couple to divide their property and liabilities as part of a divorce. Why is a marital separation and property settlement agreement important?