I have heard that if you can get some friends or neighbors that trigger an aggressive response to walk by the pup, no eye contact, and drop a treat, that soon the dog will love to see a stranger coming...
That would be reconditioning her...
I saw Victoria Stilwell re-train two yorkies on her show with this method and it seemed to really work.
I had a foster dog that was just like that, beginning at 8 weeks old. She was beautiful, so everyone wanted to touch her, and it made me very nervous. So I do understand your fear and anxiety over the situation.
Good luck to you...