At the core of what you are doing is you are creating a sustainable business model that generates income without much of your participation.

I think you need to develop a pricing model and stick to it, and then always be widening your network of sellers. 

This is across various manufacturers and models.

Consider asking them to share in the re-modeling for maybe a reduction in the rent.

Sounds like a complicated business model where each business/property is dependent on the other.

Seems the takout/delivery model would be more viable moving forward, and would save a ton of resources with no retail, high visibility location, much smaller footprint, delivery personnel instead of wait staff, no dishes to clean, etc. 

I'm convinced MetLife uses this as their business model. 

I will look into the licensing and if needed revisit my business model.

If they have been good otherwise, use my model.  ;-)

Find out if the Airbnb model works for you before looking to make an entire purchase predicated on that strategy.