This is purebred runt of the litter. She's small for a rottie and is easier to manage on walks. She's still very strong so the leash/ collar should be short and very sturdy. Jazz is very healthy, fed only grain free high quality food. She's a wonderful family dog and is very gentle with our cats and small dogs, but is very aggressive with dogs and cats that are unfamiliar. She's protective of our family and home. We simply do not have the space she needs to be truly happy. Out yard is small and out neighborhood is not friendly to large breeds. Jazz needs a home with lots of space. Jazz is crate trained and house trained.