My husband is a self employed contractor. He provided an estimate to the home owner not a contract because it was a friend helping a friend! ???? He completed the job on July 30 sent an invoice on August 3rd. We did not send or have a preliminary lien letter. I did send an intent to file a lien on September 10th they signed for it on September 13. When is the first day that I can file the lien, and can I if we didn’t have a contract with the owner nor a preliminary letter was sent?