What can I do? Fl. Lease expires EOJ Tenant refuses to leave.

[Joyce Jackson]

I have a tenant that has been late paying this whole year. Every month she pays two to 3 weeks late.Ut stayed with just a few says then 10 days now every month she's 3 weeks late. They do what they want to upgrade the property and then send me the bill. I served the Tenant with non renewal notice approximately 3 weeks ago and her lease is due to expire ends of July anyway. Tenant is now advising that she never received the certified mail and she will not leave until September. What are my options?