The first order of business is furniture. Cain isn't certain the system will recognize an empty castle as anything more than abandoned structure, so having a good section of it decorated before trying to register it as a Guild Castle is at the top of Cain's to do list.
[Dimnys, can you get me a bunch of furniture? Whatever you can get on short notice is fine.] Cain sends his request. They've got a furniture maker in Graska, so they're should be at least something available, and if not the Dwarves have a pretty good stock.
[Most of this order is spoken for, but we have about a dozen bedroom sets and some assorted couches and tables.] She sends back a few minutes later. They were fairly popular after getting the approval of the Dwarves in Montauk, so he shouldn't be too surprised.