Such a lawsuit would be extremely unusual. And, the neighbors have committed the tort (private wrong, not a crime) of tortious interference with a contractual relationship. It might be worth your time to consult with local counsel just to have all of your ducks in a row. Avoid this dispute!
We do not have a client/attorney relationship until you make an appointment, we discuss your case face to face, I accept a retainer, and we explictly agree to enter into representation.
I agree with previous attorney. As long as you didn't rent your premises for any illegal activity or so, I don't see any problem.
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