But then in my mind is I know this will deter some buyers from initial buy and their resell if they move someday.

The owner is valuing the park at a high commercial price, but my buyer is purchasing to use as a mobile home park initially, with the intent to eventually use it for his own business (his warehouse is a few blocks from this property, along the same street), or to resell it to a major retail business and capture that profit himself.  

There may be additional restrictions preventing you from reselling immediately (double close) or for selling for more than xx amount of profit within xx amount of days.- Tom

Then resell or keep. 

If you've contracted them all under one purchase agreement, you'll have to close on them and then resell the two you don't want.

@Anthony Boone Your best bet is to close and resell. 

Is there a minimum time frame you have to wait before you are able to resell the properties?

Avg acquisition is $300-400K, $75-$100 reno, and reselling for $600k - $1million. 

He said that if the investor didn't make the payment, the bank could obviously foreclose on the property but the investor said he could even resell it even thou the lean was under someone else's name.My questions are 1.

That's exactly what I've done (though not for wholesaling, more flipping and close & re-sell unless seller agrees to a wholesale process and closing wouldn't make sense/be possible).