Hi, Star...
I can surely empathize with your situation. I have rescued many pets over the years. I had a Sheltie that barked incessantly when she was out in the yard...barking at grass, birds, anything, constantly. I found a woman who had lost her Sheltie, was an elderly widow, who wanted to replace her lost pet. It all turned out well, as she was SO happy to have a new Sheltie and read stories to him at night!

Recently, I found a home for the last rescuee, Kelley, a Samoyed mix I had adopted from the Lexington, KY, pound when my daughter's roommate said she was takng her back to the pound after a few days. I had Kelley for over 6 years, and she was/is a lovely, gentle white fluffly dog. But!!!, when I moved to this new residence last year, Kelley became obsessed with escaping. I installed new fencing, then a wire fence with shock collar, but nothing worked, and she was gone each day....morning or evening, and since I had id tag on her, I'd get calls from people far and wide to come get her. I would pay these people for their trouble at containing her and calling me. Finally, in desperation, I ran an ad to find her a new home, and it turned out very well....The man who called and finally adopted her has a big farm, and many other pets and children. He says Kelley is "sleeping with two of the tripletts (age 11), and waits for them to return from school each day. She is a house dog there, but also with much acreage to run and play on. I would never, like you, have let her go to someone who would keep her tied to a chain.
I was so SO stressed with this last rescue, I don't plan to do any more.
I hope you can find a good solution for your dog.
LOVe
Patty