As his medical marijuana dispensary nears completion in West Tisbury, Island cannabis entrepreneur Geoff Rose has begun the process of obtaining a license to open a retail marijuana store. Mr. Rose, who owns Patient Centric Martha’s Vineyard, has secured a lease for retail space in the lower level of the Woodland Center commercial complex in Vineyard Haven from which to sell recreational marijuana.Some abutting business owners are raising concerns about traffic, parking and the proximity of the store to a children’s dance studio. Sale of adult-use cannabis was legalized in Massachusetts 2016, and the town subsequently passed zoning that allows for a recreational marijuana shop in specified areas.Mr. Rose held an informational public forum at the Katharine Cornell Theatre on Thursday evening. About 30 people attended, including multiple Woodland Center business owners. Public meetings are a requirement for obtaining a license to sell marijuana from the state Cannabis Control Commission. Other regulatory hurdles include a host community agreement with the town of Tisbury.