I am a home owner who purchased a solar energy system from a door-to-door salesman. The salesman told us 3 specific things we would receive in the package deal that encouraged us to buy. We now find out that one of the things he promised is (according to the prime contractor) technically impossible to do, and also that the salesman was actually a sub-contractor to the solar installation company. The work performed was good, but is missing a last important element. The solar company has now cancelled their work arrangement with the salesman, and they say that they can't finish the project as promised by the salesman (though not contractually agreed to). I have the remaining 60% final payment to pay for the project, but am unwilling to do so until the project is completed as promised. The salesman has agreed that he did, in fact, promise the final element. My question: If the solar energy contractor puts a lien on my house, what are the consequences for me, and what are the chances that the contractor can petition to foreclose on my house, in order to obtain his $10K +/- remaining fees?