Oh, I see.
You want to see the deal that the other tenants made with the landlord, which is a completely different thing than the landlord's supporting documentation.
There is nothing stopping you from going into a LTB office and requesting a copy of the decision, and they may give it to you (if the final decision has been issued, it may become available to you). But on the other hand, because the adjudicator decided to keep the other deal hidden from you at that time they may not give it to you. I guess you'd have to try, and see what happens.
Also, the LTB tends to try to keep the contents of AGI decisions secret. (They say the secrecy is needed to encourge landlords to take part in the AGI process, which is B.S. because the real motivation for a landlord to file an AGI is the vast profit they make by gouging their tenants. The secrecy is there to hinder the barganing-power of tenants, and to keep the public from finding-out just how unfair the AGI process is – that's what the landlords want.)
Is there any chance you can approach your tenant association, or one of your neighbours who may be sympathetic to you? I don't know whether they are legally barred from providing the information to you, but if they aren't, then they might.
Also, consider using some psychology. If your neighbours seem pretty happy with the deal they got, then maybe you should ask to rejoin them. You'd probaly have to pay the paralegal something, and you'd be doing this without seeing the actual deal in advance. But if they seem happy then maybe you could be happy with their deal too, and you'd be saving yourself a ton of time, effort, and stress, in fighting your own AGI by yourself. Just a thought...