Refinancing a balloon as a foreign investor

[Ess Dee]

I have an opportunity for a seller financed deal on a triplex. The seller naturally once the property on a balloon payment after 5 years (92k, I think i can bring it down to 80k but that's another story).

How would I go about doing that without a traditional lender? And if a private lender can help, how would that work?

I can imagine after paying property taxes for 5 years there must be some kind of leverage with a traditional lender in obtaining a refinanced loan? 

This would be my first deal btw so I am trying to make sure my strategy is correct. Im also only interested at getting more than 10% cash on cash return from rental.