The Swayal also study and maintain the folk magical practices of witches so the wards could be one of those. A go to ward that is quick and effective against material threats that she used because it was easy and comfortable to do.
Also I can see all sorts of fake Chorae scams (Tears of God=splinters of the True Cross). Sleight of hand switches or sucker moves to bait the mark into bringing money to where he can be robbed ("I represent a family that would rather their declining fortunes isn't made public. They are willing to sell one of their chorae, if the right price can be reached")
[EDIT Madness: Added spoiler tag for content that's from books ahead of this subforum (WLW, TGO, TUC).]