I have a signed 12 month lease in Florida and have lived in the apt. with my girlfriend for 3 months. She/roommate is not on the lease and we do not have any signed agreement. She has been paying 1/2 of the monthly rent and utilities. We are no longer getting along (ex-girlfiend). I have asked her to move out. She has refused stating she receives mail at the apt. Based on my research, I think I need to present her with a notice to vacate with 15 days notice and then if she does not comply I will have to start the formal eviction process. Is this correct? Also, what are my obligations regarding refunding her pet/security fees.

