RE: Some people just don' t care !!!
This guy does sound like a real #@@. But he is good friends with the land owner, so I wouldn' t mess with him either. You are going have to talk with him, but that doesn' t seem like it is going to work. I would visit the land owner and see whats up. Tell him that this guy is hunting RIGHT next to you, and is being a jerk about it.
Are the deer heading in the same direction? You may end up moving. Set up before him. Or shoot the deer before him, but that could turn bad. How often does he hunt? How much are you in there? Where does your brothers and dad hunt? Depending on the land, 45 acres may be a little small for 5 guys, but I have seen a lot more hunters in less area.
Good luck.