That's not a fire wall, not even a 1 hour rated wall.
At best ... at *BEST* ... that's a draft stop wall.
Now, if you did not have access to the attic and the fire rating was the ceiling, then the walls would be fire partitions, which only have to go from fire rated floor system to fire rated ceiling system. Being as that is a 'condo', that could have been the intent.
Is that condo one which is side-by-side-and-one-above-another? Or is it like a townhouse where the condo go from ground floor to the roof?
The fire rated floor/ceiling system and/or fire partitions/fire walls all depend on that (basically speaking).
*IF* that condo is built like a town house and the common walls are fire walls or fire partitions, then that is wrong, all wrong.
*IF* that is like a normal condo building where you only own 'the space' within your walls, floor, and ceiling, then that is wrong in that you should not have had access to the attic.
The more you say, the more I think about, the worse that gets.
