They are reversing the onus. It is on them to show why you can't sell bubble tea.
Look at invoking the dispute clause in your lease
Thanks Rod. At the beginning they said bubble tea is Taiwanese drink and not suppose to sell in sushi shop. I told them in lease there is no such limitation. Then they say the FDA didn't allow us to make drink on-site, only can sell prepacked drinks.
I now requested approval from them, still waiting for their response. If they denied, I will ask them which clause in the lease won't allow me to sell.