Dennis Mangone 74 cityfile 01/30/08 01:27PM Filed to: Dennis Mangone Dennis Mangone Dennismangone Profiles Thisissomethingthatneedsattn Cityfile Profile Dennis-Mangone This image was lost some time after publication.WhoOne of New York's top condo salesmen, flashy Brown Harris Stevens broker Mangone has sold apartments to the likes of Beyoncé Knowles and Ricky Martin.