Florida Jimmy Ryce Rule 4.060
Venue for bringing a petition under Part V, chapter 394,
Florida Statutes, shall be (1) in the county where the respondent
was last charged and convicted of a qualifying offense; (2) if the
person has never been convicted of a qualifying offense in this state
but has been convicted of such an offense in another state or in
federal court, in the county where the person was last convicted of
any offense in this state; or (3) if the person is being confined in this
state pursuant to interstate compact and has a prior or current
conviction for a sexually violent offense, in the county where the
person plans to reside upon release or, if no residence in this state
is planned, in the county where the facility from which the person
to be released is located. If it should appear at any time that the
action is pending in the wrong county it may be transferred by
motion of any party or on motion by the court.