In the story, only Indian tribes are permitted to operate casinos in Florida. Dusty managed to convince wealthy Miccosukee individuals from Miami to purchase a marina and incorporate it into their reservation to skirt this rule. This clever move was part of his larger scheme to exploit legal loopholes and benefit from the casino restrictions.
According to the book, Dusty's father mentioned that the government initially protested the plan, but eventually dropped their objections. This was because the Miccosukee tribe had stronger legal representation, which allowed them to push through their interests despite regulatory challenges.