Initially entered through the roof down into the Sanctuary, cleared the Sanctuary but didn't have the mechanic skill to get into the two locked rooms. So I went down into the dungeon and cleared that, just talked to the crazy lady and was headed back up to the Sanctuary level, but when I got out into the main level and went to click on the stairs in the kitchen to go back up, the game loaded to a black screen and a movement cursor

Open Pillars of Eternity
Hit ~ Key to open console
Type "iroll20s" to enable cheats

The two commands you can copy/paste are:

AreaTransition AR_0707_Raedrics_Hold_Ext North1
AreaTransition AR_0708_Raedrics_Hold_Int_01 North1

The first command gets you outside of the keep. I suggest doing this first and hard saving. This will allow you to have a clear file outside. (My issue was I only had a save two hours prior and the bugged autosave in the Seige area).

The second command is the front door of the keep. There will be a lot of enemies, but it leads to Raedric which thus allows you to complete the quest.

I sided against Raedric and killed him. Upon killing him I was able to use the front door, however I am unable to zone into any other area. Just take the quest complete and boogie