Wis. Stat. § 862.11
At the time that the personal representative gives notice of hearing of allowance of any account or secures waivers of notice of hearing, the personal representative shall mail or deliver a copy of the account to every person interested whose distribution from the estate is affected by the information, other than death tax information, contained in the account. If any person interested is represented by a guardian or guardian ad litem, a copy of the account shall be mailed or delivered to the guardian or guardian ad litem but not to the person interested. If the person interested is in the military service and is represented by an attorney or an attorney-in-fact, a copy of the account shall be mailed to both the attorney or the attorney-in-fact and the person interested. Failure of the personal representative to comply with this section does not affect the jurisdiction of the court as to persons interested.
Wis. Stat. § 862.11