[KimMee's Mom]

This sounds like typical puppy play to me that has just gotten out of hand. If she were still with her mom and litter mates, her mom would put her in her place as would a dominant litter mate. YOU want to be the dominant one. There are many ways to go about this. Find some good books or a mentor near by. Ask you vet. Have you turned her over onto her back at the time she is aggresive and gotten in her face. Puff yourself up like a mad mom. My puppy was the same way and it took many training sessions and time to get her under control. It is still an on going process. Plus do you understand the term bite inhibition? ie- she puts your finger in her mouth but doesn't really bite it. I wish you all the best and to me, it just sounds like you have a dominant girl there. added note- it won't get better unless you take contol. Don't let this behavior continue or she will think that it is normal for her to behave this way.