The Illinois Prenuptial Agreement Act provides that prenuptial agreements are not enforcible if they are unconscionable (unfairly one-sided), or if a party fails to reasonably disclose his/her assets before marriage, unless the right to disclosure is waived in writing. However, a wife's attack on a prenuptial agreement was rejected where she voluntarily signed the agreement without reading it, and the husband made a fair, but not full, disclosure of his assets and liabilities before marriage. An agreement is not unconscionable just because it is one-sided. A valid prenuptial agreement replaces the marital rights of the parties under the law. Marriage of Woodrum (Illinois Court of Appeals, 3rd district, Sept 20, 2018).