Legends of Norrath loot card from Dragonbrood - The Anarchs booster packs.
Redeeming this item will grant you the ability to purchase a rent-free manor in Gorowyn.
Other Resources:
EQ2U
EQ2i
LootDB
Human-Readable Link: http://eq2.zam.com/wiki/EQ2_Item:a_tax-free_Gorowyn_housing_license