RE: What would you guys do????????
It sounds to me like the young buck has been inadverntantly tamed. By this I mean noone may have set out to tame it. But you describe it as feeding from an apple tree close to the house and dog pens and not afraid of humans. My grandparents had the same thing happen in a peach and pear orcherd years ago. the orcherd was a small one just off of the side yard of the house, less than 10 ft. We tried to run them off and that worked for a while. but after about a month you would try to run them off and they would just look at you like you weere stupid. They just got used to humans. Grandpa called the game warden and they gave him a kill tag and we ate good all summer.
This sounds like what has happened here. And the fact that it is a buck, next he will be dangerous as a mature rutting deer. I would definantly have the lady call the game wardon if you do not want to waste your tag. they will give her a kill tag or remove it.