...with no plan for another house because that would drain his profits. He asked for me to let his deadbeat son live in a camper on the other side of the property with my utilities. He in return would pay my power bill. He did this for a year but quit because his deadbeat son and him don't talk. So, the informal agreement doesn't work.

Deadbeat son says he has an attorney. That's 2 weeks ago. No attorney has contacted me yet.