You don't have to be a realtor to accomplish this unless your goals are broader than you have highlighted. 

Doing business is broader than where the property is located or if you hire a property manager, so if you are making managerial decisions from California, chances are you are doing business in California. 

First, there is a control factor with RE that I do not have with the broader stock market. 

Never be afraid to walk away.Just Say NoThis falls in line with the section above but in a broader sense.

Expanding the licensing requirements to people not acting as agents requires either a much  broader definition of 'agent', or changing the law regarding licensing to include some principals acting in their own interest.  

Of coarse that term housE hacking could also be applied to any size multi family in a broader sense 

Either works, though “Loss Payee” is a bit broader and often includes non-real estate related property such as auto loans.This should add no cost to your policy.

There is a broader market for them.* SQFT is more (average 1000 this is 1800)That is a significant difference. 

Downtown Tampa, yes, but what about the broader MSA?

There is a much broader range of Non-QM products now that span a range of borrowers and lenders are trying to find niche products to attract brokers to match them with clients every day.