It's very difficult to simply build affordable housing, but perhaps older housing stock can become more affordable as new housing is introduced.

Then the housing stock will degrate, banks will suffer and a circle of misery all around.

If buyers are scarce due to entrenched wealth-income inequality, then once Boomers start selling their vast holdings of stocks and millions of overpriced homes, prices will plummet if sellers outnumber qualified and willing buyers."

I am asking about a real estate portfolio specifically, not your overall portfolio that may consists of stocks and/or bonds.Do you build your RE portfolio based on a predetermined percentage of each asset class (ex. 50% residential properties 50% passive funds)?

The concerns about large corporations buying up housing stock are valid and reflect broader market dynamics.

Their tendency has been to limit activities instead of increasing stock. 

Housing stock in RI is older, look at the lead laws and see what it would take for your property to comply. 

I invested some money into stocks and some crypto over the past few years.

My other thought was to do an outdoor barrel sauna, and/or a stock tank pool for the hotter months.

Our housing stock is old.