Legal consultation about setting up a dark kitchen in Boston

Our target: deliver food preps (aka semi-finished food) via third-party apps. We plan to use shared kitchen space (one of them). There are two potential systems: 1. dark kitchen with direct delivery from this dark kitchen 2. dark kitchen (where we making food preps) + vending fridge with direct delivery from this fridge. It’s like we We need a legal scheme of work. 1. What entity we should have? 2. What licenses and certifications need to be obtained in Boston? 3. Is it any requirements for kitchens or fridge or transportation or place for fridge 4. How we should buy raw food (beef/poultry)