I had a contract with a plumber for the amount not to exceed $13000 on Sep 17th (completed on Sep 22nd). In addition, I gave him permission to send the details of work to the insurance company directly and get paid from them directly. Later, on Oct 4th he emailed me an statement for the amount of $10, 000 for the total work. On Oct 13th he sent an itemized details about his work to the insurance company. He put lots of exaggerated amount of the work in his itemized and insurance paid me 14,000. After the insurance payment, he sent me another statement (on Oct 21st) with the amount of $18000. I disagreed to pay more than his first statement (10,000), and he sent me an email on Oct 27th. He accused me of cheating and told me that he would place a lien on my property if I don't pay him before Nov 2nd. At the same time, I contacted the insurance company to report them about the false data and request to send back their money until the case become clear, but they refused to take the money back. Could you please let me know if he has a right to place a lien? Is he required to send me an official notice before placing a lien? What are my options at this time?