Keep in mind that only the "building basis" can be segregated and will benefit from accelerated depreciation.

Then as you build your portfolio look to hire a new Tax Accountant or CPA to match your growing needs.

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.

In my market, which is a fairly economical place to build, I am friends with full time builders that are in their properties about $150k/door for construction level finishes.  

A reserve is unnecessary, but I still keep around $15,000 - $20,000 in my account.The point is, that you should sit down and assess your finances to determine what the worst-case scenario may look like, how much you would need to cover it without impacting your life, and whether you will need to build a reserve.

With the right strategy, it can become the foundation for building wealth.

I’m excited to learn from this community, share ideas, and build valuable connections.

You're better off focusing on specific markets, specific neighborhoods, analyzing numbers, and building an ideal buy [box].

Instead of platforms like Angi, try building relationships directly with contractors, architects, and developers.

The options are, demo the lot, split the lot and then sell 2 lots to the builder or build myself.