You can just google Doberman Pinscher rescue.
I would not put her on PetFinder yourslef, you get alot of fruitloops out there looking for dogs. A rescue may be your best bet. I am in Indiana I would help if I could.
I am a real estate agent myself and own a few rental properties.
I would not be afraid to try to negotiate. You never know what kind of position she is in. She may need to liquidate. She is paid on commission, and may be having an off year. I have some prices in my head for my properties...