Molly's father Adam DeLuca told AP: "He just exceeded our expectations all the way around. Right away, the kids were hugging and loving on him, he always took it, he never did anything.
"Whenever anyone came to the door, he would start barking and try to be protective.
"He has just been an amazing dog. He's the type of dog that when you want to go buy a dog, you pay thousands of dollars and that's the dog you get. But we adopted him and got him for free."
A family friend set up a GoFundMe account to pay for the treatment and donations raced past the US$15,000 target.
Now they are asking for cash to go instead to a local animal shelter.
"Haus has enough money to meet his needs," they said in a message posted on the site. "Many other beautiful German Shepherds like Haus are waiting on you."