.), Either a US credit report or credit trade line history in your country of origin, US Entity documents (EIN, Operating Agreement, Articles of Organization,), 2 months bank statements for proof of closing, and 6-12 months reserves on top of closing costs and DP. 

But thats a majority of america now......and thats a huge problem

These do require more time and organization though.Looking forward, after 5+ years of owning a property, assuming you bought in an appreciating area, you should have enough equity built up via tenants paying down your mortgage for you and appreciation to refinance out of the VA loan (if you haven't already) or even cashout to buy more or to supplement your earnings.Theoretically, if you have enough properties you could refinance at least one a year.

Without major rent increases, multi-family property values tend to stay flat.

I can't see but maybe the wooden piers are sitting on sonotube concrete piers embedded in the ground which might change things.What I would do is get with a few major local lenders and maybe ask them what they would need to make sure the little studios (that is what I would call them, not yurts) are maximized for value.

We’ve been considering the United States, Europe (Spain, Cyprus, Portugal), or the Caribbean, but we’re not sure how to proceed and would like to avoid any major bureaucratic or administrative difficulties.Do you have any useful advice or specific locations you would recommend?

You are also opening yourself to major liability.

With your background you know damn right well that private real estate syndications are unsuitable for the VAST majority of visitors to BiggerPockets.

Well over the majority of investors have had a tenant default.

It has a great search option.I like how visually organized the software is.