It does sound like it would be pretty tough with only 23 acres unless it is a heavy bedding area or something of the sort, however, having a sanctuary seems to be very effective so once the deer have patterened other hunters and learned they have a safe haven on your land i'd say your efforts will pay off a bit...i don't know the relationship you have with your conjoining landowners, but you could try to speak to them explaining the effectiveness of QDM and how much healthier the deer will be if it is practiced, but that all depends on their perogative about deer hunting...best of luck in your QDM