This is a spell to bring a chunk to money, or some other financial boon, to the most dire situations. It is not meant to produce lasting wealth so much as a bail-out to help get you back on your feet as fast as possible.
His Office is to take away the Sight, Hearing, or Understanding of any Man or Woman at the command of the Exorcist; and to steal money out of the houses of Kings. If commanded he will fetch Horses at the request of the Exorcist, or any other thing. He can discover all things that are Hidden, and not kept by Wicked Spirits. He giveth good Familiars, sometimes. Good for finding a new job or career.