HI, I own a part share of a nice recently renovated house in North London, with other members of my family owning the rest, left to me in my fathers estate, with probate granted in 1999, as a tenant in common.

We’re based in Reno/Tahoe, so feel free to reach out if you’d ever want to chat. 

I feel the investor is off to a great start.

$40,000 x 25%(assuming a 25% interest rate on credit cards) = $10,000This is more than the annual cash-flow that you are getting from the rental.I would look at a way to paying off the credit card debt asap.Look to see if you can take a HELOC on the investment property(likely difficult).If you can't you may want to consider selling the proprety.You will also feel a lot of relief of not having credit card debt hanging over you.What is the interest rate on the car loan?

Feel free to share more about what you’re working on—I’d love to connect and collaborate.Wishing you a productive week ahead! 

And your net worth will thank you.If you still want to go ahead, you'd be better off buying a house than an apartment because, while the value of the building itself will go to 0, you'll still have the value of the land, bearing in mind that the land might actually lose value too given the depopulation and the yen depreciation.Sorry if I'm pooping a party but make sure you understand what you're getting into (which you're already doing by asking the forum) and then make the decision that's right for you according to your objectives.

This could be a huge opportunity for investors who can find cheap conversions (think: a SF with an existing in law apartment).

I don’t care if you steal a property, high quality tenants will never sacrifice on being safe and feeling safe.  

 @Zeona McIntyre how do you feel about the long-term profitability of MTRs?

Too many low income apartment buildings near by / vacant buildings.