I found that the smoke-like Raid brand "Fumigators" seem to be much more effective at getting into the walls and other spaces than just the generic spray foggers.
One thought that I had just now (if I were putting myself into your situation and didn't want to just have to spend the money and trouble of changing addresses as a knee jerk reaction) is to do something that might produce good results and put the monkey on the management responsible for addressing such a nasty health issue (mental and otherwise). Many mangers put pride and saving face even above saving money or their time in messing with such matters.
That being said, I found a very effective roach trap is to take clear glass jars (1 quart up to one gallon like a pickle jar etc.) and put stale beer in them while coating the top rim with Vaseline. This idea of trapping the little devils serves mulitple purposes, btw.
For one thing, you'll likely be shocked at how many roaches this simple trap catches and kills (they die happy however drowning in a sea of beer that they can't get out of). But besides trapping a boatload of roaches, you'll also have reusable inexpensive traps (I use the cheapest beer I can get my hands on) thereby saving money on very demonstrable and real results.
But what's even more advantageous about this idea is that if you use a bunch of smaller jars (1 quart size or so) and feel that the management needs any more....convincing that there's still a significant roach problem, then you'll have the very clear proof in the pudding of the validity of your claim.
[Btw, Use jars with small enough openings that your cat(s) can't get their heads down in or down low enough for an evening cocktail (get it? cockroach/cocktail...) and/or put them in places that the cats can't get to like in the basement or garage and cabinets and such. I'm not sure what cats think of stale beer and a face full of vaseline, actually. They might find that it isn't really their cup of tea, but I really have no clue there. Although at least beer and roaches aren't exactly lethal to ingest....YUCK!....Excuse me... 
]
Furthermore, if you feel you need even more help leveraging your point, then you can simply take pictures or just leave the jars there at the doorway of the sales/management office or your landlord's front door for them and EVERYONE ELSE to see and decide for themselves how things are managed there at the place you have chosen to call home.
Most people will agree that "seeing is believing", and there's just nothing like several glass jars full of beer drinking dead roaches all dead from baptizing themselves with cheap "substance abuse" and Vaseline that puts an end to all excuses and delays and denials and minimizations of alleged infestations. 
After all...they say a picture is worth a thousand words. I wonder what several 3D live models (or thousands of dead, drunk roach corpses)is worth? 
[This message edited by Cephastion at 9:53 AM, September 17th (Tuesday)]
