Quest Stages - TGLeadership (Under New Management)

10 Speak to Brynjolf about becoming the Guild Master
20 Proceed to center of Cistern
I've been offered the position of Guild Master of the Thieves Guild. All that remains is to attend my installation ceremony in the cistern of the Ragged Flagon.
30 Become Guild Master for the Thieves Guild
40 Speak to Brynjolf about being Guild Master
50 Retrieve your Guild Leader Armor from Tonilia
200 With the ceremony complete, I've become the Guild Master of the Thieves Guild. As a benefit of my position, I've received a suit of Thieves Guild Leader's Armor, the Amulet of Articulation and the key to the Guild Master's Tribute Chest.