You would have to file a Petition to Terminate Parental Rights and get a judgment.
18 years is the age of adulthood in Florida.
Well, they think it's age 18, but in reality, it's age 24 for females, and age 30 for males. Christ was 30 before he was mature enough to leave home.
You're going to need to do a few things, and most likely a LOT more than what I'm about to tell you but this will get you started. Get your own lawyer NOW. Make sure he/she is not affiliated with...
Yes they do.
See link provided below for a listing of state-by-state adult adoption laws.