Finding private money will probably be your best bet. 

The private aircraft, boats & autos confiscated during the Revolution were still there when we visited in the '80's.http://allanstratton.blogspot.com/2010/03/cuba-dup...

I just finished doing some research on investing with private lenders, but I'm a bit confused still. 

Also perhaps even any private lenders who specialize in foreign investments? 

I am looking to create a presentation to hand out to potential private investors.

In which case, get a private lender to finance you and after a year re-finance from bank.If you understand what I am trying to tell, and like to pursue this route, keep in mind there are lot of moving parts in this strategy.  

He's known that he needs to get started with raising private money for years, but hasn't been able to make it happen.

These guys can typically email or text their private money providers with the deal and the money is quickly sent.  

Have a single family property I'm looking to purchase - it already has a tenant and good cash flow; the realtor is not investor friendly and is demanding a $1000 good faith deposit, which I do not have - I'm working on getting a private lender.

You can probably find private money sources in your area.