I agree that meeting them in person, being friendly but firm and just assume that they were not given notice about the change so they might be a little apprehensive about it (i.e. making sure it isn't some kind of scam etc.

Get as much as you can from the buyer to benefit the seller, not yourself.But if you are another scammer wholesaler and trying to get the property for as low of an amount as you can from the seller and take as much profit that you can scam out of the deal, then you are the typical wholesaler and should not call yourself a broker. 

Plus we never knew if they would indeed obtain 80% ownership or if it was a scam.

Huge scam reported in Belize. 

Just need to beware of the scams.   

Plus I was willing to smack the visitors, if I was in the mood to encounter the ugly things (some nights I wasn't up to do battle.) 

Found a property, made offer and my first obstacle I encountered was when I checked online my credit score was 752, I thought good to go.

These are people who encounter real estate all the time and might be good sources of off-market deals.

Have you encountered any other hurdles?

LolRemmington financial was the mother of this .. great American greed espisode.. really shows how the pump and dump due diligence scam lenders work in real time.. worth watching.