My wife (Japanese) and I just moved back from Tokyo a few weeks ago.  

You could put that toward a Japanese cash flowing apartment.

., about Akiyas in Japan.One of the requirements for a Japanese's Business VISA is 5M yen, or about $30k proof of capital for the business.

Not much you can do about the Japanese yen being devalued or some such thing5) short answer is no, though there are some exceptions which are convoluted and not worth going into at low volume. 

Your income 280-300 covers all your housing, credit card, cars, student loans, Japanese properties, then the CO property needs to cash flow as a market rental not short term (without any experience). 

basically guarantee rent like sec 8 but without the tenants destroying things and skipping out. a lot of single japanese live in a small apartment that they basically use just to sleep, shower and store their things.  

The other trick may be getting a loan from a Japanese bank with no work authorization, so are you prepared to pay cash?

@Gibson BeusI read a cool Japanese proverb the other day-“A spoonful of sweat can save a bucket full of blood”See, told ya it was cool. 

Are you currently doing investing into Japanese real estate or US based investing exclusively?

There are whole nation states that live in denial (a friend of a friend recently called the USA a "shining beacon of compassion" in the world and told me that it was inappropriate for me to bring up Japanese-American internment camps and two atoms bombs dropped on civilian populations as a counterexample to what he was saying), so is it so strange that these people just cut themselves off from dealing openly with their financial problems or making rational decisions about strategies to avoid foreclosure?