Similar thing happened to me. I was working on a lot next to a friend/competitor. Lunch time I walked next door to make small talk. The homeowner and contractor had a huge disagreement. 6 months later the homeowner pulls into my drive and hands me a paper. Then says I'm sorry and leaves. It was a subpoena to do deposition. I had to go or get held in contemp. Needless to say my friend /competitor has no use for me now. All I did was tell the truth. It took 3 years to settle this and it was less than 10 grand. I don't know why I am labeled the bad guy , but I was. My advice , if you have plenty of work , stay away from the situation. Had I not walked over there and said what's up, I'd never been involved. Now days when someone asks me what I think about anything , I reply that's not up to me to evaluate, make up your own mind. The only thing , if the land owner gets a judgment without your help , then offers you to do the work after its settled , I would do the work then. One other scenario , I had a non paying customer , ex customer. The POS never offered me a penny for 2 weeks dozing/ backhoe work. It was enough to justify a civil trial. It took me just shy of three years to get judgment , and I still have no money. They have garnished his check and I should see some money soon. I hated this situation , you don't know how much. But there was no way I was going to let it slide. I sent word that I did not care what it costs me in legal fees , he was going to pay. I got my legal fees , court costs , actual original bill plus 12% interest from day one. I figured it will take 6 to 8 years to get all my money.