References can provide a good sense of the applicant's reliability and rental history.These steps should give you more confidence in your decision, even if their U.S. financial footprint is limited.

Spend LOTS of MONEY on mass marketingThe "rate locked affect" is limiting a large portion of the market and stopping transactions from happening.

Hopefully a) they meet/exceed my expectations over time and b) more auditable info/data comes into existence based on the experience of Flock shareholders, in contrast to the rather limited info/data that exists today. 

Barryville is a small town with limited sources of income.

Is there something totally off limits?

It's worth noting, however, that in the long term, housing markets with abundant vacant land can significantly increase their inventory if policies and economic conditions favor builders.In markets like Las Vegas, where undeveloped land is limited, and population growth is strong and steady, housing inventory will continue to tighten.

The sky is the limit after that! 

Typically financing for rentals for non-residents is pretty tough and limited and expensive. 

Your best bet might be joining a local real estate club.  

Given that the deal is off-market and there might be limited information on pricing, you should compare the property to recent comparable sales in the area (comps) to confirm that the price is fair.