By the late 1970s, Rosenberg's continued involvement in the drug trade as well as his business with the DeMeo Crew had given him a prosperous lifestyle. He was living in an affluent neighborhood and when not working was training for his pilot's license. He also owned a number of businesses, including a pizzeria and his body shop. His heavy involvement in drug trafficking included importing marijuana from Colombia and dealing in large quantities of cocaine. He was Roy DeMeo's second-in-command and when conducting drug deals sometimes referred to himself as "Chris DeMeo". Roy had become somewhat of a father figure to Rosenberg.