Check out Miami Dade bus service. I think there is an "Airport Flyer" that is an express with limited stops to the beach areas. Not sure if it runs by the Sherry, but one connection will work.

At the hotel, wait for a van company shuttling crews. Speak with the driver, get a phone number and tip well. They will probably give you a pick up time and let you ride with another crew for a good tip. The other crews probably won't mind if you ask them. Dress decent, not like some douche in too small skinny jeans and white framed shades and spiked hair.

Act like an entitled brat and a good thing will end.