Cured deferred maintenance (overgrown landscaping, peeling paint, tilted mailboxes), cosmetic work including interior and exterior paint, rebuild of patio fencing, striping of parking lot.

I plan to rent the house for as long as possible.I was not expecting to have the opportunity to choose the siding, gutters, roof, interior color schemes including countertops, etc.

The C class properties here all seem to list and sell for around $45,000; anything under that is likely storm damaged from Hurricane Florence from 2018 still (major flood, mold, rot, etc.) and the repair estimates would exceed the ARV of the house -- i.e. new roof, gutting entire interior, mold mitigation, new windows, new floors throughout, beautified kitchens and bathrooms (not necessarily upgraded)... in other words, the ones I've found in the $20k range usually need to be rebuilt as new houses. 

And if they have to drill holes for interior piers, you pretty much will have to replace the entire flooring. $$$$3.

An easier option might be to cut the copper and run new plumbing via interior walls and/or floor cavities, probably pex.  

Adding a 2nd bath is a great idea but try to get creative with where to add one within the current foot print because moving interior walls is much cheaper than adding onto the house.

On a property that big it could be more just to paint the interior unless you DIY. 

That algorithm knows nothing about the interior condition of the home, the landscaping, the quality of neighborhood, and many other factors.

Currently exterior photos, interior coming soon. 15,000 photogs in the system in all major cities.Pretty cool, haven't used it, but just wanted to share.

No algorithm can evaluate the interior condition of a property and determine an ARV.