@Adam PI'm far from an expert and this is a question for @Brandon Hall or @Steven Hamilton, but  your capital gain/loss on the mortgage may be treated separately from your currency gain by the IRS.However, before you money even goes south, note the following:Sale of Canadian property and non-resident tax If you are disposing of real property situated in Canada, you are subject to a non-resident withholding tax of 25% of the gross sales price.

You shall make all payments in U.S. currency.

You need to understand the sellers currency and what they put the most weight on.There might be many more options open on the table than just the ones you mentioned.

Virgin Islands so no currency exchange issues to be concerned with.

I am involved in foreign currencies.

My background before becoming a CFP was at the Comptroller of the Currency in bank regulation. 

@Eric While I think the odds of a shooting war with China are low I do think a two system (two internets, two currencies, two great powers, etc) world is inevitable.

Hi HaileyBeware of property rights in Thailand and currency fluctuations among many other things ..... 

Lately, I have been recently involved in a couple crypto currency launches that also donate funds to various charities, Wounded Warriors, the water project etc,.

As currency loses its value and purchasing power, ownership of real property can be a safe haven equaling or even exceeding loss of purchasing power.Another point I'd like to emphasize is that their is substantial difference between various categories of notes; the note universe contains many different investment types and lends itself to many different strategies.