After some additional research we have decided to focus on the aforementioned markets, but I will keep you in mind if we decide to look at Columbus more closely in the future. 

In addition, I've helped many other investors finance their deals as a mortgage broker.I'm happy to share my experience as both an investor and lender.

Additionally, where do you research if an area has a good rental pool? 

.- Tell them they'll have to provide you with a copy of their renter's insurance naming you as additional named insured, with a minimum of (I use $300,000) liability insurance, also before they move into the unit.It's not perfect, but it's a start toward a tenant transparency.

Does this completely prevent the tax lien holder of getting additional gains after foreclosing? 

In addition to rent, you can setup late fees and other fees to be collected. 

Additionally, the replacement property must be real estate to qualify under IRS rules.

I'm not satisfied with not filing the rental in an LLC simply because it's more simple and might cost me an additional filing fee .

Of course they would want additional appreciation on top of principal but any DST sponsor will tell you that they factor in the up-front load on their underwriting and  likely will overcome that up front load.

These are professionals with additional training and a stricter code of ethics.