Also appraisals or BPOs would be requested by a buyer when they are making an offer, so I would suggest not doing it ahead of time, unless Maryland law requires it (again something any Maryland Realtor should know).

Hey, it is not necessary at all to get your real estate license unless you plan to work with buyers and sellers.

Get in there talk to people and just network and find some future cash buyers hopefully !

The day before closing, the buyers backed out.  

What buyer is going to want to inherent an issue without some kind on concession.

All he says is "Find me some more land, I want it in no less than 100 acre chunks, I just feel like it is going to boom around here".While I don't disagree, some people just are always buyers and never sellers.

The difference between the appraisal and the listing is 1,200 additional sq ft.The house is priced at a multiple that makes sense for the original square footage listed given the area, but applying that same multiple (or even a decent bit lower) to the appraiser's higher estimated size would get a significantly higher value.Could a buyer be sitting on a windfall that the seller missed?

@Mike SandsI don't know what you proposed to the buyer in terms of the sale price.

Sometimes you can find a deal because the seller needs something specific to happen that scares away most buyers.  

And the icing on the cake- if your not using a buyer's agent, the listing agent just takes the full commission (6%) for the property.