Fine if you're a good, responsible owner.
Nort Carolina as far as I know, has no ban on pitbulls but they have a law for dangerous dogs. Some politicians were making laws to ban pitbulls so you need to look out for the news pertaing a ban.
No
Pitbulls are domesticated dogs. There habitat is their owners homes.
pitbulls
Pitbulls, like any dog, could be good or mean although, pitbulls most of the times are docile dogs that would rather be mean towards other animal but well trained, these dogs obey the master.
Providing the two dogs have been well socialized and they are introduced in a neutral environment (local park etc.) there is no reason why these two breeds shouldn't get along.
Cats are not a normal part of a dogs diet, but people who fight dogs (which are usually pitbulls) will use cats as bait to train the dogs to be mean.
All dogs vomit
All dogs do.
They are not considered herding dogs but I am sure that if you wanted you could train one to be. Pitbulls are good at pretty much anything they are trained to.
They can be trained to do this, but they are naturally wonderful dogs.
Pitbulls, no matter the bloodline, are mostly non agresive towards humans.