If you have a multi classed character, say a Fighter Thief, can you complete the Nadia quest and get the castle, then also get the thieves stronghold, or do you only get one, or neither?

You'll get both.

Syl...

Nice.

How do you get both? I have a fighter-thief now, I got the fighter keep quest, then the thief guild quest, then completed the keep quest, then then the guild quest. I only got the keep though! How can I get both?

No idea, but a lot of people who play multi or dual classed characters have gotten both. Perhaps it's just for Fighter/Mages and not thieves. I have no clue to give you a 100% answer, but who cares anyhow, they all suck and are a waste of time in my opinion.

Definatly not enough time and effort put into personal character development when it comes to your own Stronghold.

Syl...