Best way to end M2M tenancy?

[Bienes Raices]

My relationship with one of my tenants is rapidly going down the toilet due to his non rent-related lease violations. It may still be salvageable but I'm trying figure out the best strategy if I have to terminate the M2M tenancy. Would it be safer to:

A) end it giving the shortest notice possible (I have to give at least 15 days notice in Fla.

B) allow them to stay until the end of the following month

To me, the advantage of A seems to be preventing them from using the security as last months rent, while B might make them less irate and likely to cause damage, and give them more time to get their act together and leave so that they don't become a holdover. What do you think? thanks