Wis. Stat. § 810.08: Affidavit and justification of sureties.

(1) The sureties, under this chapter, shall append to their bond their affidavits in which each shall swear that he or she is a resident freeholder and is worth the sum stated in the bond above his or her liabilities in property in this state not exempt from execution.

(2) The justification of sureties under this chapter shall be before a judge on not less than 2 nor more than 6 days’ notice. Each surety must swear that he or she is a resident freeholder in this state and is worth the sum stated in the surety’s bond above the surety’s liabilities in property in this state not exempt from execution. But if there are more than 2 sureties on any bond they may be accepted if they shall justify severally in sums which aggregate double the sum named in the bond.