Florida law does not establish a specific time. It has to do with intent and indicia of residency - things like state drivers license, voter ID, that type of thing. Universities and colleges have rules that they establish, and he can obtain those rules by asking the college, or looking at the website financial aid application requirements or student handbook. Educational institutions usually set a time limit, and it is usually a minimum of a year.
***Please be sure to mark if you find the answer "helpful" or a "best" answer. Thank you! I hope this helps. ******
At least 6 months for divorce purposes. Has he taken out a Florida driver's license or registered his car here? They will look at those indicators.