Relationship ends; One tenant leaves, Other Can't Pay

[Jen B.]

Hello, I could use some advice on a situation of mine. I have a rental house with 4 months left on the lease to an unmarried couple. Today, I received an email from the boyfriend that the girlfriend had moved out and not planning to come back except to get her items. She hadn't told me anything about it and I'm guessing not planning to. Rent is past due and he tells me he cannot afford rent on his own. He told me he is willing to vacate peacefully and I would love to get them out. I'm worried I won't be able to get in contact with the girlfriend about the situation. What If I serve a Notice to Pay or Vacate, and the guy vacates, but the girl never sees the notice? I am in Florida. Advice on how to proceed would be great Thank you.