Lela will only be in her bedroom, if you have a quest from Janus for her - same goes for all other errands = first the quest, then the item/person appears. Oh yeah - and loot.
You can drag the chests into the guard cellar (barracks west of the castle rooms) and use lockpick there. Then put what you can carry into one chest and go to the courtyard - throw it out of the castle. You can even take the furniture, if you wish <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
Behave as bad as you can - won't matter, you can't kill Janus, but it may make your time a bit easier in there = he's a brat. Oh, and don't forget to loot the armoury - key is nearby.
Kiya