Okay, that helps you as the building owner is your landlord and not a third party (middle) person.
You have TWO separate possible solutions:
Solution 1:
Send the landlord a very nice letter (certified RRR) 'demanding' that he provide PROPER maintenance of the building as required by Florida Statute. Here is the applicable statute:
83.67 Prohibited practices.--
(1) No landlord of any dwelling unit governed by this part shall cause, directly or indirectly, the termination or interruption of any utility service furnished the tenant, including, but not limited to, water, heat, light, electricity, gas, elevator, garbage collection, or refrigeration, whether or not the utility service is under the control of, or payment is made by, the landlord.
If the landlord fails to provide proper maintenance, you have the following statutory option:
83.201 Notice to landlord of failure to maintain or repair, rendering premises wholly untenantable; right to withhold rent.
When the lease is silent on the procedure to be followed to effect repair or maintenance and the payment of rent relating thereto, yet affirmatively and expressly places the obligation for same upon the landlord, and the landlord has failed or refused to do so, rendering the leased premises wholly untenantable, the tenant may withhold rent after notice to the landlord. The tenant shall serve the landlord, in the manner prescribed by s. 83.20(3), with a written notice declaring the premises to be wholly untenantable, giving the landlord at least 20 days to make the specifically described repair or maintenance, and stating that the tenant will withhold the rent for the next rental period and thereafter until the repair or maintenance has been performed. The lease may provide for a longer period of time for repair or maintenance. Once the landlord has completed the repair or maintenance, the tenant shall pay the landlord the amounts of rent withheld. If the landlord does not complete the repair or maintenance in the allotted time, the parties may extend the time by written agreement or the tenant may abandon the premises, retain the amounts of rent withheld, terminate the lease, and avoid any liability for future rent or charges under the lease. This section is cumulative to other existing remedies, and this section does not prevent any tenant from exercising his or her other remedies.
Solution 2:
Contact the city or county building department and file a complaint and let the city handle the landlord/owner.
Personally, I would do BOTH.
Then I suggest you get together with the other tenants and let them know about the above statutory obligations on the landlord/owner. All of you getting together to confront this has more strength than just one of you.
Sounds like the building OWNER may not be aware of his managers conduct and failure to maintain. I would copy or address ALL communication directly to the OWNER of the building. You can find the owner by contacting the county tax office.