I can't imagine they will let you remodel your suite, nor that you want to go to that expense. Sound isolation or control, done correctly isn't easy or cheap.
You need to move (or might be asked to soon enough).
I'm living in an apartment, and I have the home audio and video setup of 2 5.1 systems. The problem here is that I can not enjoy the sound really well to its best capacity without bothering my neighbors since this is a wall to wall apartment. The bass really a pain for them sometimes as I 've got some conplains about it.
So, any one know if out there have sound isolation devices that can reduce largely the sound to my neighbor?