IF it is a real problem, then yes, fix it.I would build a fir-in wall out of 2x2s and insulate it heavily (Rockwool comes to mind https://www.rockwool.com/north-america/) There is also drywall that is made for this.

I completely agree that personal interaction can go a long way in building rapport with guests, especially when you're trying to create a memorable experience.

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.

I informed the seller that because of the overlay, the property may be 2 build eligible in-spite its small lot size.

Then, start building your connection with local agents, contractors and property managers.2. 

What factors should I consider when making this decision?

My goal is to build a successful flipping business while keeping family time a top priority.

House hacking is a great start in building your portfolio. 

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

When it comes to these types of auctions by the sheriff, is there a waiting period that must be observed before rehabbing/renting the building post winning the bid?