Sounds like you got Aurora a more appropriate home, Jay. I would mention to your vet about the new dog's tail issue and perhaps have it looked at or an agreement that the new owner will do so.
I grew up around a doxie and while they are fantastic little dogs the one we had was also not terribly trustworthy around small children. We had to watch her more than the over 100 lb GSD we had at the same time. You'll want to make sure any new owner is aware of this tendency and makes allowances for safety when walking her. I would think a no kids home would be best and perhaps the introduction of a halter style face collar (to control any nipping attempts while out in public).