A post-severance contract is useful if you and your spouse are considering divorce or separation, if a spouse has recently acquired significant assets, or if your spouse`s behavior has changed dramatically and you want to protect your property. As in the case of a marriage contract, the parties can also, in a supplementary contract, deal with issues such as assistance to spouses, restructuring of property, inheritance law, death benefits, old-age benefits, health insurance and even the payment of household expenses. Often, this type of agreement also identifies that each party has exclusive ownership rights separate from its respective revenues and from any purchases or benefits of that separate income that would normally be considered common property in California. .