I plan to keep the rental for long term so not that concerned about cost but more concerned about tenants not using the self clean feature safely even after education or spraying inside with chemicals.

You must use a corporate vehicle to minimize legal liability as well as potential taxes.2.

If you are close to a hospital, Oil / Chemical Refinery, Armed Forces base, etc....then you can cater to those people (i.e. nurses, refinery workers, military, etc.). 

The first 5 years of my quest was focused on cash flow and using it to pay off my personal mortgage and vehicle payments.

I like the idea of holding at least one property that I can use as an investment vehicle, until such a time as I’d like to move into it myself.

I plan to use my own earned income to get into leveraged buy and hold properties for cashflow, but want to transition any inheritance that I may receive one day into a completely secure, paid off, passive real estate vehicle, to honor the financial legacy he has and still is working to grow.

(2) Am I able to use my vehicle as 179 depreciable property when driving for dollars?

I am flirting with the idea of installing a whole-house water filter to reduce chlorine and other chemicals. 

I am flirting with the idea of buying a whole-house water filter to reduce chlorine and other chemicals. 

Add fees for trash, immobile vehicles, noise etc. to the monthly rate.