Iowa Code § 573.22: Unpaid claimants — judgment on bond.

If, after the said retained percentage has been applied to the payment of duly filed and established claims, there remain any claims that are unpaid in whole or in part, judgment shall be entered for the amount of the claims that are unpaid against the principal and sureties on the bond. In case the said percentage has been paid over as provided in this chapter, judgment shall be entered against the principal and sureties on all such claims.