Wisconsin Statutes Marriage and Family (Ch. 765 to 770) § 768.05. Contracts executed as to such claims barred

(1) All contracts and instruments of every kind, which may hereafter be executed in this state in payment, satisfaction, settlement, or compromise of any claim or cause of action abolished or barred by this chapter, whether such claim or cause of action arose within or without this state, are declared to be contrary to the public policy of this state and void.

(2) No person shall cause, induce or procure any person to execute such contract or instrument, or to give, pay, transfer or deliver any money or thing of value in payment, satisfaction, settlement, or compromise of any such claim or cause of action, or to receive, take, or accept any such money or thing of value in such payment, satisfaction, settlement, or compromise.

(3) No person, either as a party or attorney, shall commence or cause to be commenced, in any court in this state, any proceeding or action seeking to enforce or recover upon such contract or instrument, knowing it to be such, whether the same has been executed within or without this state.

(4) This section shall not apply to the payment, satisfaction, settlement, or compromise of any causes of action which are not abolished or barred by this chapter, on any contracts or instruments heretofore executed, or to the bona fide holder in due course of any negotiable instrument which may be executed hereafter.