In a 1990 California case, the Court of Appeal imposed an oral marriage in the estate of one of the parties because the surviving spouse had significantly changed his position according to the verbal agreement.  However, as a result of amendments to the act, it has become much more difficult to change the character of community or distinct property without written agreement.  Legal and financial experts have differing views on the need for prenupe. One thought claims that they protect the interests of both parties to the agreement and prevent evil and costly legal battles when a relationship ends, while some critics say that the nastiness that can arise when negotiating a prenupe can paralyze a marriage before it even begins, and that there are laws that, in most cases, do a better job of balancing the interests of both spouses if they separate or if someone dies. In drafting an agreement, it is important to recognize that there are two kinds of state laws that govern divorce – a fair distribution, practiced by 41 states, and co-ownership, which is practiced in some variants of 9 states. An agreement written in a state of Community property cannot be intended to govern what happens in a fair distribution state and vice versa. It may be necessary to retain lawyers in both states to cover the eventual case where the parties may be living in a state other than the one in which they were married. Often, people have more than one house in different states or they move a lot because of their work, so it is important to take this into account when developing. Some federal laws apply to conditions that may be included in a pre-marital contract. The Withdrawal Equity Act (REA) of 1984, signed on August 23, 1984 by President Ronald Reagan, reconciled confusion over whether ERISA anticipated state divorce laws, thereby preventing pension plans from complying with court injunctions granting a spouse a portion of the worker`s pension in a divorce decree.  A matrimonial agreement may include exceptions whererightly agrees to revoke all rights against the other`s pension benefits arising from state and federal marriage laws, as in the context of the REA. The canonical law: the letter and the spirit, a commentary on canon law, states that the condition can be defined as ”a provision by which an agreement is subject to verification or the fulfillment of a circumstance or event that is not yet certain.” He added: ”Any future condition related to conjugal consent invalidates the marriage.” For example, a marriage would not be valid if the parties prescribed that they must have children, or they had the right to divorce and remarry.
[Citation required] A prenup may not contain any questions of child care or child care. The court has the final say in calculating custody of the children. The court determines custody of the children on the basis of a ”Best Interest of the Child” standard, which is involved in several factors. A court would never maintain a provision of a marital agreement on derinemonto, child care or visitation, as these are matters of public policy.