VACANT PROPERTY

Three doors east of Trollskull Manor on the corner of the Northeastern entrance to the alley sits a large impressive town home. No smoke rises from the chimneys, no one is seen entering or leaving the property and no noise can be heard.
An examination leads you to believe it is vacant.

This extravagant vacant house on TROLLSKULL ALLEY is rumoured to be owned by HOUSE CASSALANTER, but none of the residents of the alley community seem entirely sure. 
The pristine house is, indeed, owned by the Cassalanters. It was destined to be a wedding gift for their eldest prior to his current predicament.
On the open market the property is worth 5,000 gp but completing quests for the family may have a beneficial effect on reducing the price.