Between now and the time you retire, there will be a couple of severe recessions and likely serious inflation. 

A common thread is the floating Purchase Option Price, perpetually remaining just outside of reach.

Using simple numbers, assume I want to purchase a $100,000 property using crypto as collateral:- I pay the closing costs with cash- I put down 10% down payment with cash ($10,000) - I utilize a crypto mortgage for the remaining 90% ($90,000) This way, I still keep my crypto and I have a property, both of which may accrue in value over the long-term.

It's mostly a joke.I think it did good - the influencer who opines regularly on cap rates, interest rates, the Fed, inflation, and is generally an economist, or even a bit of a philosopher, probably does alright! 

Only one remains and is likely to be overturned.This means it is better to file and not take a chance of missing a surprise deadline.

That gets worse as you get farther out of the cityTLDR: values depreciate, inflation has gone basically nowhere in Japan for a long time, the supply of housing is pretty good compared to demand (unlike the US) and that's because of flexibility with rezoning and development, taxes on rental income are high. 

However, the ex wife name remains on the loan itself.

These amounts are indexed for inflation.

What inflation factor are you using? 

Sadly, we lost my mother-in-law to cancer two years ago, and my father-in-law has since realized he no longer wants to live there, though he remains emotionally attached.The home is in its final stages of construction, needing only finish work and a kitchen remodel to be rentable.