But, even if you take it into account, most of the huge currency discount will remain.Moreover, while inflation has been pretty much inexistant in North America and Europe over time, their real estate price inflation has been very high during those years.

I'll just add on a couple1) Christopher is correct - you will be required to include the rental income into your US tax return.If you are paid in a currency other than US dollars - you will need to convert the rental income/expenses into US dollars.2) if you hold the rental property in a corporation/partnership.

Crypto, VC backed startups, etc. those could see some major pain.

I did the same with crypto when that first started and did pretty well.

Ask the broker or agent on the phone what is the sellers currency for accepting an offer?

Its value rises and falls relative to other currencies.

I also bought a bit of American Eagle gold coins and purchased some Bitcoin and Ethereum cryptocurrency.

But a note is "currency" and you can spend it in a lot of ways.Hi Gail - Could you expand on this further?

I also invested in cryptocurrency in early 2017 before that market took off and have about $25,000 worth of cryptocurrency that I can partially withdraw to help build my credit. 

Again, run the numbers specific to your situation, but also ask yourself if you are OK with a small negative after understanding the effect on your taxes and the amount of principal reduction on your loan that is occurring.On my comment on appreciation in my last paragraph, I believe that the idea of appreciation based on price increases in real estate assets over time is commonly misunderstood in the sense that many think in terms of our currency as a fixed medium against which all other assets are measured.