One compromise is to engage your condo security to install access card access into the fire exits. Then have a failsafe that would turn these off when a fire occurs. That's one way to do it.

Airline: cheaper alternative is to have only 1 way access via the fire escape, only 2 way access will be ground floor where as all other floors can only access the fire escape via their respective floors. Meaning that if you're in the fire escape, the only way out is the ground floor where you can open the door. Although of course a simple brick/slipper can overcome this but it's still a deterrent.