If your goal is to become financially free quickly, your best bet might be to sell and buy something you can house hack but if that isn't an option, keeping this house rented for the next 10 or 15 years could essentially retire you so long as you can find a way to avoid losing half of it to taxes. 

I didn't see anyone mention the Five Point neighborhood, so I am going to guess this is a relatively unsafe bet?

It will be hard to find that type of free cashflow after all expenses in Austin but I would bet you'll see higher than average appreciation.

I really see Columbus Ohio as an extremely safe bet for the next 10-20 years.

I bet Chris!  

BUT, if you build another structure, all bets are off. 

As mentioned above, syndications may be your best bet for truly passive income, but you are absolutely ripe to make a bad decision on that because you don't have the time and will not be able to property vet the operator.

Columbus will be your best bet if you want the growth.

Tons of rating factors that impact the price from one property to another.I say this without even considering coverage, service, and what you might want as there are usually choices to be made.Your best bet is to work with an independent agent that can provide advice along with multiple options for every scenario so that you can find the best value in each situation.

fresh real-time data is ESSENTIAL if you want you and your investors to stay ahead of the curve and know trends before they are widely spread, which in turn will make your investors happy which will make you look like a safe bet in their eyes, so real time data is IT