In Re Marriage of Button v. Button


131 Wis. 2d 84, 388 N.W.2d 546 (1986)


To be enforceable, marital agreements must have fair disclosure, be voluntarily entered into, and have fair substantive terms. The fairness of the agreement is assessed as of the time of the execution of the agreement and, if circumstances have significantly changed, the fairness is assessed again at the time of divorce.

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