Maybe I can piggy-back on this with a Thieves Guild question.I've been doing quests for Delvin...Numbers Job, etc. I've failed one or two of them because I was seen or whatever. Do these quests need to be completed to become Guild Master or are they more like side quests for the Guild? Will the fact that I've failed a few of them matter?
Essentially, you want to do the quests for Devlin and Vex in a city until they give you a "special job" in that town. Once you get the special job and do it, there is no reason to do any more in that town unless you just need the cash. Essentially, once you "complete" a town by doing the special quest, your fence's available cash will go up. By completing the special quests in each town, your fences will eventually end up with 4,000 gold apiece, great for selling off stuff.Edit: Oh, and as the previous poster said, once you complete a town, it's best to just turn down the quest and pick up another. I had to turn down four or five in a row at times when I was down to just one town to go.