My background is medicine so I have no experience in real estate but am learning. 

I would go with all white and as someone mentioned you need a mirror /medicine cabinet on the wall. and the TP should not be sitting on top of the toilet bowl tank.

This is very new for me coming from the world of medicine but honestly what better field is there to be in?

Also, their new neighbor is a medicinal marijuana shop.

Professional certifications already exist in hundreds of professions from finance to medicine to supply chain management, among  others.  

voiced the idea that they could just shut off the flow of medicines like antibiotics to the USA and we'd be in deep trouble. 

Financially, each route is equally as terrifying, but I truly believe that, in time, RE investing would be much more satisfying, less worrisome, and less litigious than medicine (not implying in ANY way that there is no worry or litigation in RE...but that it is of a MUCH different caliber).  

I would like to rent to medical students (Baylor College of Medicine), doctors, hospital employees, and Rice University students and not anyone else. 

There is currently a children's hospital, a VA medical center, several medicine-related colleges, a research center, and will have a teaching hospital eventually.It's just South East of the Orlando International Airport.

Do they pay for food, medicine, travel to work, etc.?