Florida has some of the broadest self-defense laws in the country, including both the Castle Doctrine and Stand Your Ground provisions.
Castle Doctrine (§776.013): You have no duty to retreat and may use deadly force if someone unlawfully enters your home, vehicle, or occupied dwelling. There is a legal presumption that you reasonably feared imminent death or great bodily harm.
Stand Your Ground (§776.012): Unlike traditional self-defense law, Florida does not require you to retreat before using force in any place you have a right to be. You may use force, including deadly force, if you reasonably believe it is necessary to prevent death, great bodily harm, or a forcible felony.
If you claim self-defense under Stand Your Ground, you may request a pre-trial immunity hearing. If the judge rules in your favor, criminal charges are dismissed and you receive civil immunity. The burden of proof at this hearing is on the prosecution.