I mean walk away, if it doesn't fit walk away. 

It doesn't seem like you will be living in this rehab at all so as @Patricia Steiner said, buy an opportunity, not a property.

This means…Don’t count on it to cashflow, your 401k or your ROTH doesn’t cash flow, they never have.

That's not to say you property doesn't increase in value in Japan, it can but that's not what you would bank on.

Knowing what to budget for when buying a home may feel intimidating — but it doesn’t have to be.

I was here to try to find the same thing and it doesn’t look like it.  

However, we have a higher end market so it always struck me as strange that we'd only provide such a small amount since it doesn't cost that much more to provide more.

It's doesn't have to be 20% downpayment for a owner occupied home. 

I'm going to reiterate what's already been mentioned above, but I'm going to actually give you examples of why it's relevant to you to find a U.S. tax professional.1 - You're going to need to file U.S. taxes once you have property down here, there's federal filings, state filings, and sometimes local filings too2 - Tons of tax treaties between the U.S. and Canada that are easy to miss and can cost you a lot of money (important one with rentals - effectively connected income - if the professional you talk to doesn't know what this is, run away)3 - The amount of days you spend in the U.S. needs to be tracked and if you go over a threshold, all of your worldwide income could be taxable by the U.S.4 - Selling real property means up to 15% of your sales proceeds might not be available to you for years (FIRPTA)5 - Lots of nuance at the state and local levels, which both want to take as much money from you as possibleMain takeaway here is that you should find a U.S. based tax person.

If you find something that works well as a short-term rental, but doesn't work well for you as a home, you'll have money but be dissatisfied when you live there.You don't even need it to produce a profit.