You deal, as I understand it, with private investors and investors, they may not be as sophisticated in their dealings.

However, I know that the engineer I hired planned some pretty sophisticated repair work on existing buildings.  

It is a little sophisticated and you need a reputation, to impress investors.

Since they are usually 2-4 feet down it would have to be something like a very large tractor or construction machinery to do it. 

Your best approach is simply to let the first deal continue as it is and contract separately for the second and treat that as a separate transaction.You can't really delay the first deal without the seller's agreement.Now, I don't know you or your position financially, but you can very well screw up your first deal jumping on another contract unless you actually qualify for both and you won't be hiding the second deal from the first lender, if you tried that could be a much bigger issue.I assume the investing level of sophistication by the questions asked.

I don't think there are necessarily prerequisites from what I've gathered (no commercial real estate background other than 4-plexes), though participants in the commercial real estate space tend to be more sophisticated (e.g., professional). 

I prefer to master simple deals over sophisticated engineering.

MD DC is a sophisticated market, lots of J.D.s.......

AS hard as yellow letters try to be very simple like pitching to simple minded folks we go the other way much more polished and sophisticated.

The more sophisticated ones communicate with the utility to allow for both off-peak consumption and the ability for the utility to manage load levels.Once charged, heat is then released into the room from the thermal mass during peak hours ... with minimal electric consumption to maintain the rate of discharge of the thermal mass above a given threshold.