Wisconsin Statutes Marriage and Family (Ch. 765 to 770) § 767.865. Deceased respondent

(1) Who may appear.(a) The personal representative or, if there is no personal representative, a guardian ad litem appointed in accordance with par. (b) may appear for a deceased respondent whenever an appearance by the respondent is required. The summons and petition shall be served on the deceased respondent's personal representative or guardian ad litem, as the case may be, under s. 767.813(4).

(b) If the court determines that it is appropriate, the court may appoint a guardian ad litem for the deceased respondent for purposes of par. (a). Section 767.407(3) and (5) applies to the guardian ad litem. The guardian ad litem shall represent the interests of the deceased respondent. The guardian ad litem shall be compensated at a rate that the court determines is reasonable. The court shall order the compensation to be paid from the deceased respondent's estate. If the moneys in the estate are not sufficient to pay all or part of the compensation, the court may direct that the county of venue pay the compensation. If the court orders a county to pay the compensation of the guardian ad litem, the amount ordered may not exceed the compensation paid to private attorneys under s. 977.08(4m)(b).