Since you put the name of the place in another post, I was able to look up the plans and photos of the layouts, and it would be in the HVAC closet, the problem is based on what I'm seeing, you probably won't be able to get a view of it since it's inside of the unit without removing a bunch of screws. When you open the HVAC closet (or look at the unit if it's in the shared space of your washer and dryer) there would be a PVC pipe that comes out of the unit that is routed toward a drain. That pipe is for condensation created by the AC coil, and underneath that metal is where you would see the coil. The pictures online don't show the units. The filter will be either at the main return vent in the apartment if it has one, or in the HVAC closet, you may have to turn the two latches at the bottom where the blower motor is to access it.