A Wizard Thief in America

Very AU - Set in a world where Lily & James were muggleborns who got mixed up with the prophecy anyway and were killed, they managed to get Harry out of Magical Britain and away from Dumbledore. But Harry is nothing like what Dumbledore expected him to be, but how can you be when you're a Wizard growing up on the streets in a country where muggleborns are considered scum?