Wis. Stat. § 889.241
If any grantor residing in this state refuses to acknowledge his or her conveyance, the grantee or any person claiming under the grantee may apply to the circuit judge in the county where the land lies or where the grantor or any subscribing witness to the conveyance resides. The judge shall then issue a summons to the grantor to appear at a certain time and place before the judge to hear the testimony of the subscribing witnesses to the conveyance. The summons, with a copy of the conveyance annexed, shall be served at least 7 days before the time therein assigned for proving the conveyance. At the time mentioned in the summons or at any time to which the hearing may be adjourned the due execution of the conveyance may be proved by the testimony of one or more of the subscribing witnesses. If the conveyance is proved to the satisfaction of the judge, he or she shall certify the conveyance, and in such certificate the judge shall note the presence or absence of the grantor as the fact may be.
Wis. Stat. § 889.241