On an episode of A&E's popular reality series "Flip This House," Atlanta businessman Sam Leccima sits in front of a run-down house and calls buying and selling real estate his passion. Now authorities and legal filings claim that Leccima's true passion was a series of scams that included faking the home renovations shown on the cable TV show and claiming to have sold houses he never owned. McGee and others say Leccima's episodes of "Flip This House," A&E's most popular show, were elaborate hoaxes. His friends and family were presented as potential homebuyers and "sold" signs were slapped in front...