When a U.S. citizen decides to marry an immigrant, that person often serves as a visa sponsor to ask his fiancée to enter or stay in the United States. The Dept. Homeland Security requires that persons who sponsor their fiance come to the United States on a visa to make a declaration of support and it is important to consider the obligation under oath to support a U.S. sponsor about to sign a pre-married agreement. The Asidavit of Support establishes a 10-year contract between the U.S. government and the sponsor, which requires the sponsor to financially support the fiancé on its own resources.  As expressly stated on Form I-864, divorce does not end the obligations of assistance owed by the promoter of the U.S. government and the immigrant spouse to rights as a third party beneficiary of the sponsor`s promise of support in the affidavit I-864. As such, any waiver of support in their marriage contract must be formulated in a manner that is not contrary to the contract that the U.S. sponsor makes with the government by providing affidavit support or may be declared unenforceable. With respect to financial issues related to divorce, marital agreements are regularly maintained and enforced by courts in virtually all states.
There are circumstances in which the courts have refused to apply certain parts/provisions of these agreements. In North Dakota.B, divorce courts retain the jurisdiction to amend a limitation on the right to apply for spousal support or assistance in a pre-marital contract if this would result in the spouse who waived that right in need of public assistance at the time of the divorce.  Florida and several other states have similar restrictions to prevent an outgoing spouse from becoming a community of the state after divorce under a marital agreement.  In addition, in Florida, the Pre-Trial Contracts Act, where inheritance (electoral quota) and thought rights granted to surviving spouses under state law are so strong that a waiver of the rights of the surviving spouse, enshrined in a matrimonial agreement, is enforceable with the same formality as the will (notarially and notably). In some countries, including the United States, Belgium and the Netherlands, the matrimonial agreement provides not only for what happens in the event of a divorce, but also to protect certain properties during marriage, for example in the event of bankruptcy. Many countries, including Canada, France, Italy and Germany, have marital rules, in addition to or in some cases instead of marriage agreements. The laws enacted by the states that adopt the UPAA/UPMA have some state-to-state deviations, but this framework of laws has certainly made it much easier for lawyers to prepare opposable marital agreements for clients by clearly specifying the requirements. For example, under Florida law, there is a very significant difference in what is needed to enter into a legally binding marriage agreement compared to a post-marriage agreement in. To effectively waive the rights of spouses that are generally available to a surviving spouse under Florida law (e.g.B. firm, electoral percentage, free wealth, family allowances, etc.), parties must present their assets and commitments in a comprehensive and fair manner before entering into a post-employment agreement.
On the other hand, no financial disclosure is required to waive the same spousal rights in a pre-marital contract executed before marriage.  However, if the lack of disclosure makes a prenup unacceptable (unfair to a spouse) under the Florida Uniform Act, this may not be applicable for these reasons.  Contracting parties may waive disclosure beyond what is expected and there is no certification requirement, but it is good practice.