HARRY POTTER DOG PROBLEM

I recently had somebody dump a charming certified full blood Mastino on me. He's 1 yr old and 120 lbs. There's ton of these dogs adoption in America due to Harry Potter. Owner was ready to shoot it.
I'm looking for rescue service. Everybody wants money ; wants to sell him the f'n scum.
He's the best guard dog I've ever had and the smartest. beautiful, too.
I hate that Harry Potter.