See these sections of the Florida Statutes:
- Section 222.17 (homestead exemption)
- Section 1009.21 (residency requirements for tuition and state financial aid for education)
- Section 196.015
- Section 372.57
The Florida Department of Elder Affairs has information on Florida residency in the "Retirement" section of their website
The Florida Department of Revenue has information in the "new residents" section of their website
See also information from Florida county elections supervisors
See also information from Florida county property appraisers