Confidential Due Diligence Report — YHS, LLC Copyright 2006 N.Y.P. Holdings, Inc. All Rights Reserved The New York Post August 14, 2006 Monday SECTION: All Editions; Pg. 22 LENGTH: 809 words HEADLINE: MYSTERY MOGUL'S TEEN-SEX SECRET BARED IN PROBE BYLINE: DAN MANGAN BODY: For years, a media-dodging financial adviser who owns Manhattan's largest pad has cultivated his mysterious image, suggesting he creates big investment profits for billionaire clients without revealing how he does it or whose portfolios he handles. But now investment whiz Jeffrey Epstein's darkest personal secrets have allegedly been bared in an explosive, seamy prostitution case involving underage girls. Instead of marveling at his stock-market acumen, Epstein's celebrity friends are now hearing sordid stories about his alleged obsession with getting massages in his Florida mansion from young girls - one allegedly just 14 years old. The tawdry tale came to light when Epstein, 53, was busted in Florida on July 23 after a grand jury indicted him on a single felony charge of solicitation of prostitution. The grand jury declined to indict the silver-haired moneyman on charges of sexual contact with minors. But a bitter rift between Palm Beach cops and prosecutors over how to handle the case has put Epstein at risk of more serious charges. The FBI is weighing whether to investigate his alleged contacts with underage girls. Gerald Lefcourt, one of Epstein's high-powered lawyers, says his client is innocent and that his polygraph test helps prove it. "There was no sexual contact with anyone underage," Lefcourt said, arguing that that has been "proved beyond a reasonable doubt" by evidence lawyers gave authorities. Epstein owns what reportedly is Manhattan's largest home - a 51,000-square-foot Upper East Side house - plus a sprawling New Mexico ranch and a 100-acre private island In the U.S. virgin Islands. He also owns a two-story pink mansion in Palm Beach, which became the