I am interested in managing the property myself but that leads to its own hassle, but oddly the reason I want to go into landlording.

Hard money lenders will not give you money up front to go buy an auction property because they don't get to inspect it.Cash is cash in the bank.Most auctions are cash only.Some auctions will allow for a short window of closing on a loan.

I agree with Chris, you really can't create an average to go by.

The HVAC tech was able to take apart the vent pipes in the attic, but was unable to go on the roof and check the top portion of the pipe or change the vent cap.

Is there anyway to calculate the end investor's desired yield of 8-14%?

ARVs pushing right up toward the median now, so you really have to go subdivision by subdivision, or even street by street, to get a feel for which areas are rental areas and which might be better for low end flips. 

You aren't far off, but if that it the maximum that you are willing to go, then it probably isn't going to happen. 

just have to go through the quiet title to please the title insurance underwriting criteria.some title companies make you wait a year before they will even consider it some 5 years.in SC it looks like this lady is going to be over 5 years.   

Then you'd have lots of options to go with: cash flowing rental, BRRRR, sell. 

If you don't have enough capital to obtain financing, you'd need to go with the owner financing deal.