American Bulldogs, although a little stubborn they are very sweet dogs. Obviously she felt that the dog would be friendly with someone coming in the house. They do need exercise- but calling it quits when tired. Make sure you leave plenty of water as they do tend to drink alot. Good luck!

I own two, they are far from stubborn dogs, they like something to do - these are high drive dogs that can be very demanding, they are very intelligent dogs that need an experienced owner