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.

Unique reward items
Some of these may appear in the rewards list. These items have a minimum level 2 requirement and binds to account.
 * Nicked Greatsword - +1 Great Sword: Screaming, Shatter +4
 * Nicked Heavy Mace - +1 Heavy Mace: Force, Weighted 2%
 * Nicked Kama - +1 Kama: Shock, Tendon Slice 4%
 * Nicked Longbow - +1 Long Bow: Shock, Seeker +2
 * Nicked Longsword - +1 Long Sword: Frost, Parrying
 * Nicked Scimitar - +1 Scimitar: Acid, Competence Attack Bonus +1
 * Nicked Shortsword - +1 Short Sword: Acid, Sneak Attack Bonus +2