For Shaman you can just allow her to proceed with her cure on you and you will end up with her and one other NPC pretty much alone, so you can take her out there without problems.
For Drow you just need to take out group of 3 goblins in surrounding room next to the doors (one archer moves around from that room to the balcony near Drow) and later on just don't allow them to use drums.
Dror Ragzlin is bugged, because script for global hostility just starts the moment he dies. So I won't matter how you will do it.
