In just three weeks, Dempsey's afflictions began to ease. And on Sunday - just two months after he was left to languish outside a store - Dempsey emerged a new dog.
"He was so sad and miserable in his own skin when I first got him," she says, "But he bounced back so quickly. He went from being pretty rough and sad to being literally one of the happiest, friendliest, most easygoing dogs I've ever met.
"I've had over 30 foster puppies and he absolutely stands out. He has a special charisma about him."
And that's the dog who left for his new family on Sunday. The family will foster Dempsey for a trial period, with plans to keep him for the rest of his life.