As he opens the steel door to the jumble of his office, located in a cloistered warehouse on the west side of Denver, Paul Isenbergh is barking down the phone about a duplicitous business rival. He’s wearing a shirt and rust-colored tie. Yards from his desk, rows of drying cannabis plants are strung up on two clothes lines.
Isenbergh spent 30 years as a real estate broker in Florida. When he moved to Denver in 2011, he didn’t even know medicinal marijuana was legal in Colorado.
“I had been doing my own research and development, you could say, since the 1970s, but I didn’t really know anything about it until I came here,” he said.