Dolly Lenz — the Douglas Elliman broker who’s made a name representing celebrities like Antonio Banderas, Melanie Griffith and Billy Joel — is leaving the New York City firm after 14 years, The Real Deal reports. Lenz, who is currently representing a $95 million penthouse on Fifth Avenue, may be preparing to launch her own firm, The Real Deal said, citing several sources. Source: therealdeal.com.