The OP is from Alberta, and I dont think there are buck:doe ratio or carrying capacity issues there. Mother nature seems to be able to keep the herd size well within the carrying capacity, often with winterkills.

All deer are territorial, especially bucks during the rut. As a rule they will be pushed off the property when they reach breeding age both by older bucks and mom. I would talk to the state/province biologist and get a professional opinion.