They as in maintenance.
The maintenance people employed by the condo complex likely have no obligations to you. They may have obligations to your landlord (the owner of the condo), and it's possible that those obligations have passed to you by virtue of your lease.
We would need to turn off the furnace for the entire complex, I wouldn't even know where to look for that much less have the keys to the door that they most certainly have locked (I would hope).
If heat is centralized, then the condo complex almost certainly has an obligation to your landlord to fix this, and you need to be crawling up your landlord's backside to make sure that happens. Your landlord owes you the duty to ensure that the premises are habitable.
By spitting I didn't mean in the literal sense, more as in if you don't fix this i don't want to have to court but i will because its better than freezing/frying my ass for the entire winter.
Obviously it's not literal since one cannot literally "spit out the law" at someone. Non-lawyers citing laws to other non-lawyers as part of a threat is generally not an effective thing to do. Given the circumstances, I think you need to move swiftly, which means if your landlord doesn't take prompt action to get this fixed by the end of the week, I think you need to be talking with a lawyer no later than the first part of next week.