Thanks for your in depth reply. Here are answers to your questions...
Mixed with what? The dog is a female and is Pit Bull mixed with Blue Heeler supposedly, although they got it as a puppy from the humane society so who knows for sure?
Has it had obedience training? No obedience training and there's no money in the budget for this. The dog runs in the house, pees from excitement at seeing new people, and jumps up on people and generally ignores commands to stop, down, sit, etc.
What is its temperment? Once the dog settles down, she seems complacent. Does do some gentle gnawing on owners hands during play.
Do they intend to leave the dog alone with the baby? I wouldn't say they intend to leave the dog alone with the baby, but if the dog is in the house loose and Mom or Dad turn their backs for a minute, who knows?
Thanks,
Worried Grandmother