@Jack Pasmore, I would second what Greg shared above - no spreadsheet can (or should) replace the local boots on the ground market knowledge.

The tried and true version is pulling a list of properties whether you're targeting distressed homes or high equity homes in which case you can pull on something like Propstream or Propwire, you can skip trace through them or someone like Prime Tracers which has a pay as you go system. 

If I sell one house per year, it will pay for itself.

I’m looking to invest in nearby areas, focusing on fix-and-flip projects and new ground-up construction.

If you want good contractors out there quickly , pay their price and pay it quickly . 12 months is too long , we can build a 3000 sq ft house ground up in 3 months . 

It may be helpful:I can give you some general info on insuring the property:Here are some things to look for from an Insurance prospective:1.Any in-ground tanks (active or inactive)2.Any Knob & Tube or Aluminum Wiring3.If built before 1978, does the building have Lead Safe certifications4.Any wood stoves or secondary heating units.

Downsides is you have less of your feet on the ground and really need to trust and verify all vendors.

Essentially, your new replacement property will consist of (1) a thirty plus year ground lease on the real property you already own; and (2) new capital improvements made on the real property you already own pursuant to the new thirty plus year ground lease.

How can I use onsite timber to pay for the home?

I have a large network plus in depth knowledge of the process to get a project like this off the ground.