Security deposit and last month rent in Florida

[Mike X.]

My tenants provided me sercurity deposit and first / last month rent at lease signing.

As I understand that Florida law require that security deposit to be held in separate bank account. But I'm not quite sure if last month rent should be treated just as regular rent payment  or has to go in same account as security deposit?  My other question, seems like most banks charge fees for accounts with less than certain amounts. What banks will have no fee 

accounts that would be suitable to hold security deposit?