One thing that I don’t believe I’ve seen addressed is the legal status of Ally Spirits. We hear about the legal status of Free Spirits in the rulebooks, but if you create an Ally Spirit formula for, say, the perfect English butler, and then have it keep house for you (and occasionally bring you tea and biscuits) while you toil endlessly away in your magic research lab, what is its legal status? If you send it out grocery shopping, can it be arrested as an illegal alien? It probably isn't carrying any ID. And how do you declare Ally Spirits on your Census forms? For that matter, are they tax deductible?
You would think lawyers specializing in magical law are making a killing in the Sixth World…