From the introduction: Very early in the Waterdeep: Dragon Heist adventure, the characters take possession of a dilapidated and haunted building known as Trollskull Manor and Tavern. The concept of having a home base for the characters in Waterdeep is fantastic and the fact that they have to work to make it home is even better. The book provides only the roughest outline of the cost of repairing the building and getting the tavern operational. It’s also vague on the details for how to win Lif, the resident ghost over. In this short supplement, I will provide a few notes that expand on those ideas.