If I were to expect to be inside the unit, I would bring a digital recorder with a hidden mic (which I have). 

Hyperinflation... or at least high double digit rates of increase in the values of the homes.I don't expect that anytime soon.

This is a picture of inside the property with newspaper.

Through proper diversification your $50K SDIRA could return a double digit return with not much risk allowing you to focus on other areas of real estate. 

There is much more to look at than simply a 3-digit number.

They could go all digital slot machine style and hit buttons on 300 rentals in 1 minute if they wanted. 

Have a camera and ruler with you during the final walk-through and take lots of photos, with the landlord in the photo and/or that day's newspaper which shows the date.

I try to help or at least be civil to everyone, you never know, but I do know most aren't cut out to make it in RE, usually it's an attitude issue, but I know some can't add 6 numbers with 6 digits and multiply the result by 12.

With the single digit temps we were experiencing, the hole in the brick let the pipes freeze in an occupied and heated 70* unit.

Local news papers are good for the hood, but Craigslist with a link to a youtube video of the house will be great for an area like yours.