The court also challenged the duration of the prenup, which required the husband to give his wife only a lump sum of $US 20,000. She did not take part in the family`s home. The court found that a prenup that is not ruthless at the end of the marriage can be ruthless. In this case, the prenup has been invalidated as ruthless if it would mean: Prenups follow the traditional principles of contract law: if you force someone to sign an agreement with threats, be it financial, emotional, physical or other type of inappropriate pressure, then the agreement is not valid. The victim bears the burden of proof that the agreement was signed under duress. For example, a prenup cannot rule on matters relating to the maintenance of the child or the custody of the child. If one potential spouse provides the other with information that is not true, the agreement is not valid. If you live in the New York City area, you may have seen the news last month that a Brooklyn court refused the marriage contract signed by a Long Island woman before her 1998 marriage to her multi-million dollar husband. This is a precedent, and divorce lawyers across the country sit down and take note of it. Will more people try to launch marriage contracts abroad? A long time ago, a marriage contract was considered cumbersome, even offensive, but today, “prenups” are more and more common for wealthy couples. Simply put, a prenup formalizes the agreement between the spouses in the making as to which of their property becomes conjugal property, which one continues to belong to whom individually and what financial arrangements must be made in the event of separation. .