We're in a bit of a sticky situation! We had 4 contracts total for a large AZ commercial job. We sent a prelien for the 2nd and 3rd contracts, but not the 1st or 4th. Everything that we are owed is for retainage or change orders, but I'm worried that I can't file a lien for funds I didn't prelien. Should I have sent updated preliens for the change orders? Can I file a lien without having sent preliens for the total owed?