Talked with one of my local politicians (I vote for people I see who are willing to talk to me about stuff like this) who will look into any city licensing I might need for the new publishing company. He suspects (and the limited research I've done also suggests) that the answer there is none but he'll double check that for me, which means I just need to deal with the state DOR and then all the legal crud involved in setting up a new company will be finished.
Related: any local politician who wants to lose my vote, the best way to do that is to avoid being seen in public and not return phone calls.