This distinction allows you to ask him to leave after 6 months if you give him his large deposit back.

I'm asking in part because I've never heard of the distinctions you are making. 

@Allan @Allan Smith - there is a distinct difference between speculation and a sound investment, but it's not obvious.

So, it's a tough distinction: keep rents where they are or risk having a (hopefully brief) vacancy?

You can't "include" state income tax estimates with federal income tax estimates as the IRS and state DORs are separate and distinct governmental agencies. 

It has shareholders, which is a subtle distinction. 

Looking at the outlying towns is a very important distinction because you'll think cash flow is impossible if you're only looking at the City of Orlando proper, which is only 270,934 people of the metro area's 2.4 million people!

There are 8 wards and most are distinct.  

Curious to learn about your process so far, did you purchase the property as a second home or investment property and specific to your question, was this distinction asked by the homeowners insurance company?

Again, it needs to be evaluated one-on-one before we know whether cost seg helps your parents.One critical distinction is that they bought a short-term, as opposed to a long-term, rental.