It must be entered into voluntarily by each party The spouses must legally and voluntarily enter the agreement; Frisco Prenuptial Agreement Attorney Collin County Prenup And Postnup Lawyer Texas Some use them to predetermine the parties’ rights and duties during marriage, including childcare, housework, career sacrifices, and managerial responsibilities related to family finances. How does a prenup work in texas . Both parties must negotiate, write and sign the agreement with an intent to enter into an upcoming marriage. To do this, you can sign a premarital agreement, also known as a prenuptial agreement. You executed the prenuptial agreement in contemplation of your marriage, which means that you negotiated the terms therein and signed the agreement. Both documents must be in writing, signed by both parties, and each person must be upfront about their financial situation (including assets and liabilities) and it must be signed with all the accurate and true information p...