since the guy is your friend talk to him .whos property is it?yours or is.if its yours problem solved no dogs allowed if its his well your a guest and got to play by his rules .the deer will get used to the intrusions and probably move into heavy cover but they're not gonna leave if theres food and shelter.good luck.welcome to the forum feel free to ask questions
Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison.
Genesis 27:3 "The thinking deer hunter should mature through three phases during his hunting life. First phase, "I need to kill a deer." Second phase, I want to harvest a nice deer. And last phase, we must manage this resource so our children and their children can experience the grand tradition of good deer hunting." - Jim Slinsky