Wish I could afford a good attorney. A few years back I had three back surgeries in six days. The last was to try to fix what was done wrong in the second. I had to refinace the place to get the medical bills paid. I talked to four attorneys and none would do a malpractice suit even though the surgeon said a piece of equipment failed to work correctly.It's time for an Attorney....who isn't afraid to litigate.
You need an attorney who will put the fear of God and a massive lawsuit into your neighbors soul.
Also, if what you are describing is true, your neighbors have to be violating several federal and/or state laws.
My normal luck…