At any point before completing the Find Proof of Mae'Var's Treachery side quest, you can buy and sell items from Gorch near the entrance. After showing Renal the evidence against Mae'Var, you will no longer be able to trade with him.
If you accept the guild as your own, you will be able to trade with Rattell.
- Mae'Var's Letter – On the second floor, inside Mae'Var's locked cabinet.
- Worn Whispers – On the second floor, inside Mae'Var's locked cabinet.
- Find Proof of Mae'Var's Treachery – The quest is obtained from Renal Bloodscalp in the Shadow Thief Guildhall, which involves infiltrating Mae'Var's Guildhall to find evidence of Mae'Var's plot to kill Renal. If you are a thief, after finishing the quest and killing Mae'Var, you can accept this guild as your own and it becomes your stronghold.