The contractor has a contractor license. We have no written contract, and he has not given me a preliminary notice to file a lien. The contractor only did about 60% work and never come back to finish, so I had to hire someone to complete the work. I told him to pay him the portion that he finished, but he threatened me to file a lien against my property. My house is under contingency and will close next month, I do not want any trouble.