Getting Rich in the Medical Marijuana Business (Or Die Trying)

Bob Calkin, 50, a cannabis hustler,  paces in front of a small stage, holding a microphone inside a conference room at a Sheraton Hotel in Miami. This Los Angeles-native with ’80s rock-band hair flies all over the US, charging people $299 a head to learn how to make a fortune dealing po — sorry, “dispensing medicine.”... more →
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