How to Start a Cannabis Business & Cannabis Cultivation Workshop.Two Day Seminar Sat 11/1 & Sun 11/2 10am-4:20pm in Pasadena, CA. This is a 2 day live seminar and we will cover the following: Medical Marijuana Law Business Basics. How to start a marijuana delivery service. How to legally grow marijuana for patients.How to start a “dispensary”. On DAY ONE – you will know more about. Marijuana delivery business licenses.Marijuana delivery business permits and other marijuana business paper work needed.