The owners of four Manhattan Burger King franchises are locked in a nasty legal battle with their royal overlord. Luan Sadik and his sister, Elizabeth Sadik, rebelled against the mandatory 99-cent menu and the recent dollar Value Menu because the prices couldn’t cover the obscene Manhattan rent and the fast food monarch roared. According to the Daily News, their rent at a Fifth Avenue restaurant is $9,000/month and $18,000.month at a 47th Street location. The......