That all being said, you can a) continue doing what you're doing and deal with / ignore the crappy neighbor, b) do whatever you can to win your neighbor over by meeting with him face-to-face, make him feel heard and important (chances of success are slim), or c) cut your losses, sell, and find another location. 

Just want to add here for clarity's sake....when you refresh your list, you are actually pulling a new one with the same geography, same criteria.

You may have answers to some of these questions already, but it is a good exercise to have some clarity on those goals, then you can forge the path to get there.