If the number are close[100k or less], do preemptive due diligence [water, sewer, stormwater, planning and zoning] if the property is considered for a new build development situation.

Start doing your due diligence.3) Your focus should be more on $$ paid for amount of bedrooms / bathrooms.

The portion allocated to qualified use is tax free. 

Or maybe there's a special sauce for sloppy tax professionals?

Please be aware that all national homebuilders, and I would assume solar developers as well, will want enough time in the contract to conduct substantial due diligence, rezone (if needed), and get all required land development permits in place before closing on the land. 

Rent due date9.

Quote from @Sanjay Bhagat: 1) Should I hire a third party accountant to interpret the deal sponsor track record for due diligence?

Look for sellers who need to sell—due to financial strain, property issues, or other urgent situations.

finding land that relatives bought years ago.. inherited owners just dont know what it is or have even seen it.. dont want to pay tax.. and will sell for quick cash at signficant discount to market.. buy and then market and resell..

Here is an article i found with a simple google search: about $5000 but i thought quiet title in georgia was actually higher.Tax Deed Services For Owners of Tax Deeds - Gomez & Golomb LLC