Self-storage Spaces; Revises notice requirements of owners of self-storage units in order to enforce lien on tenant's property; revises notice requirements for such owners who wish to sell such tenant's property; requires that rental agreements for renters of self-storage units which are entered into on or after specified date provide certain information in compliance with Florida Self-storage Facility Act; provides that failure or refusal of tenant to designate alternate contact does not affect tenant's or owner's rights or remedies; provides exception; authorizes owners of self-storage unit to send notice to certain tenants' last known address to apprise such tenants of specified right.