i think you better lawyer up for real thick trump walls to separate the restaurants or to drop the corruption of these hechserim that had no waiters there but handed trays of food to each guest. i was there a few times at different times of the day investigating.
You can try to corrupt & fool your readers into thinking the hechshar is %100 honest without being light on certain kashrus halachos BUT you cant fool a mashgiach whose top priority is %100 percent kashrus with no exceptions or excuses. im allergic to flattery & any business that tried to flatter to let them do something against kashrus halachos instead got more serious requirements to keep their hechshar.
no corruption or your heading for destruction