(For properties of this age, months requiring some kind of repair seemed as common as months where nothing needed to be done).b.

If your expenses are extremely low, why do you need $1mil in cash flow by age 30? 

And cash is my only asset I have been saving for two years for my dream to own 5 properties before age 20.

You should be getting AGE and DECEASED INDICATOR in your data sets as well information on relatives at a minimum.  

You're correct the replies and feedback on here are somewhat aged for the most part.

Lastly is this a good investment at the age I am at currently, or is there anything similar to this career field that is in turn a great investment. 

I am guessing this is common for the age of the house. 

If the seller's address was in another county, I performed a similar search on that county appraisal district.I followed that up by searching Google, FB, Instagram, and other websites, depending on my guestimated age of the sellers, for more information about the seller.

Right now, I'm mostly a stay at home dad, but my dream is to start looking into that more seriously once my young kids are all school age in about 3 years, something that I can do to earn my family some additional income while maintaining flexibility to take care of the kids outside of school.

Dave is a pretty smart guy and at his age levering quality RE for the long haul a good plan.