Good A HQ actually is a very practical idea. Just as much for people who might not choose to live in it, some place to touch base. And since you and your brother travel? Some place they knew they can catch you to update and receive update. It's a good idea.
And from the looks of it, with the increasing amount of teenagers, kids might not be off the mark soon. I really hope that we don't get kids How big are you planning to make this place? A huge house? An old building? Either way, I'll keep an ear out.
Oh, and it should probably have sections for people with different needs. Not to close them off or anything but some people might have different sleeping conditions. And with all the dimensions, different types of werewolves? Or .. just other needs. Some people might like privacy.