Marcus Vitali, a Thoroughbred trainer with a lengthy history of medication violations who is currently serving a one-year suspension for interfering with and impeding a 2019 drug investigation at Delaware Park, is attempting to shift his focus to a new business venture in Massachusetts: legal marijuana cultivation. But even before Vitali can take the first municipal step in a state that has one of the most stringent licensure processes in the nation for recreational marijuana cultivation, his litany of racing violations is drawing scrutiny in the local press. According to...