David Castillo is a rare bird among Miami's intrepid flock of art dealers. He is the only one of his tribe other than Fredric Snitzer or Kevin Bruk to crack the mysterious Art Basel blockade on Miami galleries in recent memory. And this year, he became only the second Miami dealer accepted to participate at the Armory Fair in New York. His artists love him because he keeps his stable small and manageable and works tirelessly to place their pieces with museums and private collections, sometimes spending 12-hour days in his Wynwood office. It doesn't hurt that the Yale grad, who also studied art at the Vatican on a special program, can negotiate with clients in five languages and has expanded his collector base beyond the United States and Latin America to Asia and Europe. Since opening his eponymous space in Wynwood in 2005, the young dealer has also organized more than 60 shows that have consistently ranked among the most memorable of the season, while his artists have been covered by publications ranging from the New York Times and the Wall Street Journal to ARTnews and the Art Newspaper. Oh, and when one of his artists isn't preparing for a show at the Whitney, Castillo can be found operating behind the scenes on the secondary market, selling works by the likes of Jean-Michel Basquiat, Andy Warhol, and Frida Kahlo or quietly holding a clinic on how to build an art business without the smoke and mirrors and chest-thumping typical of the local art scene.