Ok so Update:
Sasha seems to have either a disease or an abnormal bladder that makes her "drip" urine from time to time. And while I don't want to discriminate against that, we're not 100% sure how that would fit into our life.. especially when we bring her to the office.
But on the brighter side, we are looking into getting a puppy (around the 8 week mark) from a breeder. We are thinking a little puppy will be less intimidating to my father-in-laws dog (if you watch Cesar Milan, he's an insecure dominate sometimes aggressive dog)
And that way too we can teach the puppy whats right and what's wrong.
We are going to look at male GSD puppy this weekend. I'll let everyone know how it goes.