warren has a city ordinance making it illegal to grow within the city limits. I didn't know this until after I recently moved here. now I grow in a building across 8 mile. the cops are fakin assholes (most of them anyways), and forget about doing anything in Oakland county. its NOT gonna happen. if it does, expect a knock a week or so later from the authorities. we had tons of trouble securing a venue for a local compassion club in Oakland.
and if you do run a dispensary, don't you have to grow a certain % of medicine on premises? if so that alone trumps you.