The Sharn Syndicate

Slab

 * Contact Maxwell Statler
 * Finish Stand Your Ground quest

Laundry

 * Contact Guard Kayd
 * Finish Dirty Laundry

Underlord

 * Contact Burgundy Tir
 * Finish The Stormreaver Fresco

Binds of Blood

 * Contact Olistair Binder
 * Finish The Bookbinder Rescue

Stolen Property

 * Contact Kear
 * Finish Repossession
 * The Rewards of Treachery quest flag can be obtained while in this quest

Gangs of Stormreach

 * Contact Madhand Mulvaney
 * Finish Come Out and Slay
 * Go back to Yorrick Amanatsu to claim your final reward.