While the beginning of cannabis legalization in Canada was characterized by a surplus of product, many in the industry now say that trend has been shifting to a shortage in recent months. This is good news for cannabis growers, as it means having more leverage on the market, putting brokers and third-party processors in a less-than-ideal position for potentially the first time. Jacquie Trombley, director of sales, marketing, and product development at Agmedica Bioscience Inc.…