Every step to lock down SousShift AI: the name, the business, the trademark, the phone number, the money. Tap a step to open it, tick it off when it's done. Your progress saves on this phone.
Fastest path (recommended): register "SousShift AI" as a DBA (fictitious business name) under Antidote Enterprises LLC, which you already own. Your contracts already say "Antidote Enterprises LLC, doing business as SousShift AI", so this makes them match on paper. About $26 plus a newspaper notice, done in a few weeks. Make it its own LLC later if it outgrows that.