It would appear, however, that you've perhaps received some incorrect knowledge in your past that you are maybe using in your own business and sharing with others.  

(I am 21 but I have the appearance of a 17 year old.)

I agree, this could be risky if rates are on the rise from years 5 to 10 but maybe that's the nature of the business.

I use ListSource to create my lists and unfortunately it appears in South Dakota, or at least my part, it does not pull equity information.

Some are not and some are but that is just it---you have to spend all that time vetting them and hoping the deal works.Driving around your area may also clue you in to the neighborhoods and if you see properties (fsbo, or appearing to be vacant properties) that you can investigate.

I've got three rentals, it appears things are working out...I am working to try to get 2 more properties to flip, and two more single family homes before the end of the year to produce cash flow.  

Your main constraint will be your analytical nature.  

++You clarify how you could do this deal, using sound “investor logic”.Other BP'ers can opine as to what other metrics to include, but it appears you have laid out a framework, for deal flow to come your way my thoughts.

If you have owned the property for less than a year and it does not appear on your tax return, you take 75% of the gross monthly rents and then subtract your monthly PITIA (Principle, Interest, Taxes, Insurance, & Association Dues).

Current auction price appears to be $214k with a potential sale price upwards of $300k.If interested in discussing and you've worked a foreclosure deal before, please message me.