You could check with your local inspectional services department, just be aware if they decide it's non-conforming you may have to find another place to live. Typically apartments must have 2 modes of egress, the local rules vary as to what can constitute egress (fire-escape/ladder etc.). The property may be grandfathered for some reason, or recieved a special variance. Too many variables to tell. Your best source of information would be your local inspectional services department or local fire department.