[header] How to file a small claims lawsuit in wisconsin [title] Satisfy the age requirements. [step] To bring an action in small claims court, you must be over 18 or an emancipated child. Parties who are mentally incompetent or who do not meet the age requirements must be represented by a court-appointed attorney called a guardian ad litem. 
[title] Verify that your claim is within the jurisdictional limit. [step] The jurisdictional limit is the maximum amount of money for which you can sue in small claims court.