There is a married couple, with 2 kids that claim they have (570 credit score), that their credit issues are over 5 years old, both are holding jobs for over 3 years, with enough income to cover rent, and they are willing to provide a co-signer.Should I just continue to wait for the application that qualifies completely or should I look into this one more? 

Doing that and continuing to pay down the loan should allow you to reset the equity at some point through refi or heloc and roll that into a new property.

From what I am reading/learning, I believe my goals best align with a buy-and-hold strategy for continuing cash flow (BRRRR?).

Hi @Philip Messer, if you PM me your style and what you’re looking for, happy to introduce you to someone who may be a good fit. 

Barring something catastrophic, our prices will continue upward. 

I would continue to make your payments and leverage your lump of cash to purchase an asset. 

Ola Dantis There’s been a lot of development in The Washington and Benton counties of Northwest Arkansas going on and there still continues to be.

@Jalen Carethers- I think that is like asking 'is real estate going out of style?'

If not, you can search on google to find prices, colors, styles, and sizes.

Likely 1-2 years as  long as you are frugal and continue to sustain a solid savings rate.