I have a contractor who is charging me for plumbing work he didn't perform. The plumbing was done by another company, which off course is charging me. Also the subcontractor believes that the contractor will not pay him once I pay the contractor. the tree of us met yesterday in person. The pre agreement was that I will pay the contractor and at the same moment the contractor would pay the subcontractor but the contractor said he would pay the subcontractor later. After that statement, the subcontractor said "I am out of here. I will file a lien on the property. Then the contractor keep pushing me to pay him but without having assurance he will pay the subcontractor I told him that I will not pay him. I told the contractor let's meet at a bank the three of us so I can pay the contractor and the contractor can pay the subcontractor at the same time. the contractor refuse that and he said he will file a lien and that he will sue me for not payment. Can he do that? What can I do so neither the contractor and subcontractor file a lien on my property?