Quentin remarks that having gotten a tattoo, he would not be able to be buried in a Jewish cemetery. This is a mistake that has been perpetuated widely in popular culture. The fact is that according to Jewish law there is no such prohibition. While tattoos are prohibited, no burial restrictions exist as a consequence.
The second clue leads them to Rhode Island, where they then deduce an address in Somerset. However, Somerset is in Massachusetts not Rhode Island. It does border Rhode Island, but it is not actually in the state.