One division of my company does dry utility consulting (mostly in CA and the west coast) so I'm open to chat if you want to discuss the options. 

Our neighbor ran a house from a block over when our well went dry.

Every bill they were late on was from a hospital or dr. 

Setup agreements to have dry cleaners come onsite daily (when more occupied but advertise now), possibly have a local catering business provide on demand made to pre-order lunches.  

Geology/Soils Report/engineering6. 

No sanding  and no priming needed and the caulk dries fairly quickly ready for painting in less than 1/2 hour.

The mixed Use depending was it a dry cleaner as an example would trigger a need.  

I already have the land with topo, geo and soil completed.

Cheap way:  Silicone hole- let dry- then with a porcelain touch up kit, touch up the silicone area.  

If you install engineered wood You have to have a level, dry,  solid concrete surface and put a barrier underneath it.