I think the Deutsche Dogge is the dog for you. Maybe even a couple of them with all that land. They are wonderful dogs. I've had them for the last 30 years and will always have one. Good, friendly tempermants. People make friends with me wherever I go when I have my dog with me. They are great with children and other animals as well, uh, except pigs. If you have pigs, don't get one. Be sure to research the breed thoroughly, as any breed you decide upon.