I am a first-time homeowner, and my wife and I hired someone to install gutters on our house. The whole process has been horrible, the company we went with barely communicated with us, and pushed our start date back multiple times which I get suppliers have been bad. But when the day finally arrived to have them installed the installer came out and installed them, we did a final walk-through where he didn't point out any issues. 2 days later when they sent the final invoice for payment it rained and it turns out the gutters weren't working ( we have video evidence of them not working) So we refused to pay and decided just cut our losses and tell them don't worry about coming out to fix it we will do it ourselves or find someone else. We even have an email from them saying that they knew what they were doing wouldn't work but they still installed them anyway. How should i proceed with this if they do in fact file a lien on my house?