marriage in return for a pre-marital contract (see, for example. B code 20-303; prerequisite for the impratability of a pre-marital contract. However, there is no Reaffirms the traditional rules of choice and conflict of laws in determining the validity and importance of pre-marital and matrimonial agreements. » Legislative Note: Section 9(a) imposes the burden of proof on the party challenging a prior agreement or matrimonial agreement. Changes are necessary if your state (1) wishes to distinguish between the two categories of agreements and impose the burden of proof on a party wishing to enforce a matrimonial agreement or (2) impose the burden of proof on a party who wishes to impose either a pre-marital agreement or a conjugal agreement. Callus. App.