That's an excellent question.
I hadn't thought about that angle yet to be honest. I almost see him as more of a contracted individual. If people are looking for specific information regarding the activities of supernatural entities in and around the city then he's the guy to come and see. So not so much that he provides information regarding the nature of those entities per se (a lot of people can tell you about the ins and outs of the various types of creatures out there), but more he is the guy to go to if you want to know about what existing and new players in the supernatural scene are up to.
If the Red Court is expanding its territory and buying up property in the city, you would come and see him to find out where their new locations are.
Or if the supernatural groups in the city are all in a flap over something important that's arriving soon, he could be contracted to find out where and when.
Those are just two examples that I could think of right now.