So, long story short, I would just get an estimate from a firm and go from there.

The short answer is No, you don't need it.

.- If you're going after a seller finance deal I think once you understand what it will take to get to a finished state its simply a matter of aligning your needs as far as short term cashflow with the current rents/situation, with the net number the seller needs after the refinance.  

Also, first thing, AirBNB is a platform where you list your Short Term Rental. 

Columbus is a strong option where you can find properties with favorable rent-to-price ratios for cash flow, while also benefiting from business expansion and population growth that drive long-term appreciation. 

I have had a long term interest in purchasing an investment property and I'm looking to be smarter about this.

And also being next to a base Im thinking about short term renting, or Air BNB How did you finance this deal?

If you have scorable US credit, you'll get better terms.

A landlord looks a t how much the property will make long term.A flipper looks at how much in a short term .

Long Term: highly unlikely but I suppose anything is possible.