Iowa Code Title XIV. Property [Chs. 555-594A] § 572.24. Time of bringing action--court

1. An action to enforce a mechanic's lien, or an action brought upon any bond given in lieu thereof, may be commenced in the district court after said lien is perfected.

2. An action to challenge a mechanic's lien may be commenced in the district court or small claims court if the amount of the lien is within jurisdictional limits.  Any permissible claim or counterclaim meeting subject matter and jurisdictional requirements may be joined with the action.  The court shall make written findings regarding the lawful amount and the validity of the mechanic's lien.  In addition to any other appropriate order, the court may enter judgment on a permissibly joined claim or counterclaim.  If the court determines that the mechanic's lien is invalid, valid for a lesser amount, frivolous, fraudulent, forfeited, expired, or for any other reason unenforceable, the clerk of the district court shall submit the ruling to the administrator who shall make a posting to the mechanics’ notice and lien registry internet site regarding the proper amount of the lien or, if warranted, canceling the lien.