Legal Question in Landlord & Tenant Law in Florida

Technically, since you are not married, you would need to be in the lease to have any rights against the landlord. Otherwise, the landlord may call the police and have them remove you from the property and issue a notice of trespassing. If he call the police to remove you after you have been given that notice, they may charge you and arrest you.

I would advise you to get your boyfriend to add you to the lease so that you have the right of possession and quiet enjoyment as a tenant legally on the premises. As a weaker alternative, you should get some kind of written notice with USPS return receipt and/or certified mail to the landlord informing the landlord that you are an invitee of the tenant. But, the lease or the regulations may not allow it. Check the lease and regulations first.