In Colorado, prenuptial agreements must be in writing, signed by both parties, and entered into voluntarily, with full financial disclosure from both parties to be legally enforceable. The agreements cannot include terms about child custody or support and must not be unconscionable at the time of enforcement. Independent legal counsel for both parties is advised to ensure the agreement is fair and complies with state law​ . Our Denver-based attorneys at Littman Family Law can help ensure that your agreement meets all legal requirements.