I already talked to Renal and all, i know what he wants me to do. However, I enter Mae'var's guild and I talk to everyone but I cant find him! Where is he?

In the Cellar, go down the stairs in the left side of the room behind the bar.

You need to give the Barkeep thge papers first. Down in the cellar there is a room which has a secret door in the north wall. Stand there for a while and it will appear, or run your cursor along the wall.

Hope it helps.

TSO