oppppppppsssss....sowwwwyyyy
All of our doberguys have come to us thru either re-home or rescue of some sort...and when you do that..inherit a lot of unknown....even in the BEST of circumstance.
My heart kinda jumped a coupled of times, reading your initial postings....we've taken in some with some bad habits to break and some neurosis to adjust....but we have never taken one in that exhibited the disposition it seemed you were getting with this girl. It takes a special kind steely nerve to do that...and thank the stars there are folks out there like you to take them in. I am in awe of the fact you were like "Oh she's ours " (Or...as you said.. your wife said....she's ours and you said I'm good with that. That's a good man

)
In the best of circumstance these Velcro critters can suck money out of bank account faster than a teenage daughter....factor in unknowns....and yeah....stress on a whole new level....UGH!
Somehow for the "kids"...we find a way it make it work.
What you are seeing in her now...maybe she won't need as much intense training as was initially suspected.*fingers crossed*
Did the shelter check her for a chip?
Not saying this to return her if she does...hell part of me wants to come out there help you find who abandoned her and accidentally back over them with a steam roller.
Why I ask..my daughter works for her local county animal control shelter and they always scan for a chip, if they find one, if they can't contact the owner/won't contact the owner there is some sort of process to over write the info of the new owner into the data base.
Not sure how it works...but thought it might be worth mentioning.