However, the advantages of a prenup tend to outweigh the disadvantages. If you or your spouse took on significant debts before the marriage, a marriage contract can protect any of you from liability for that debt. Owners or partners of a business, non-profit organization or business should keep in mind that your spouse can claim more than half of the added value of your business. Specify your legal representation. Describe the names and addresses of all lawyers related to your marriage contract.. . .