I've never hunted a private hunting preserve...too expensive for me, plus in the area I live there is PLENTY of public land to hunt...but as far as hunting partners I do quite a few "hunt swaps" with people and like Val have gotten to know some good people this way and hunt new spots in different States. The only thing I've learned is to email and chat with the person a fair bit about hunting, ethics, safety and such to make sure you are on the same page. Be forward with your questions about obeying the laws too.