Hi Fohr and welcome to ChefTalk.
I believe you may be misunderstanding just what a personal Chef does.
Personal Chefs meet with multiple clients to work out menus and pricing.
The Chef shops for the menus and cooks the food in the clients home kitchen.
It is then packaged and placed in the fridge, and re-heating instructions are left for the clients.
Personal Chefs usually don't serve the food.
Pricing includes both the cost of the food and your time to prepare it.
As for licensing, the answer is yes, you'd need a Serve Safe certificate plus insurance.
For more info you can start by Googling personal Chefs association.