You can do a no-knock entry in Florida. There's no such thing as a no-knock warrant on the state side of things. Commander on the scene makes the decision and has to justify it later. The cases that have upheld no knock decisions are ones where LE could articulate credible evidence of firearms and occupant history of actively and violently resisting law enforcement, or a threat to someone's life that was more than abstract (hostage job). I've never seen a no-knock executed in my 14 years of experience.