Here is the framework that governs a Florida residential tenancy, and where owners most often slip.
Notices that start the clock
For unpaid rent, the law generally requires a written 3-day notice (excluding weekends and legal holidays) before you can file to evict. For a lease violation other than rent, a 7-day notice applies — to cure, or to terminate for serious or repeat violations. To end a month-to-month tenancy, Florida now requires 30 days' written notice.
Deposits, entry, and maintenance
Security deposits have their own rules for how they are held and returned — see the security deposit guide. You must keep the property in line with building and housing codes and make required repairs; tenants are entitled to reasonable notice before entry for non-emergency repairs.
The lines you cannot cross
Florida prohibits "self-help" eviction — you cannot change the locks, remove the tenant's belongings, or shut off utilities to force someone out, even if they have stopped paying. The only lawful path is the court eviction process. Doing it yourself can turn a simple non-payment into a lawsuit against you.
This is what professional management handles day to day — correct notices, on time, every time.
This is general information, not legal advice. Florida statutes change and every situation is different — confirm the current law or speak with an attorney before you act.