Retirement is for people that hate their jobs and have this artificial date 30 years from now that they can leave the job they hate. 

Be doubtful of science and the medicine at your own peril.  

We're facing an artificial contraction that can be remedied almost overnight(under 6mos).

This creates less of a rental pool, creating an artificially higher price within a year or two if done in masses.

It’s a small dent compared to the effect of prolonged artificially low interest rates, and the hollowing out of American middle class jobs.  

This is actually obvious since our knowledge resides at home.b) We lose sight of the fact that investing in our home market, whether the US or Canada , is much riskier than we think as prices have been inflated by 15 years of artificial cheap money printing from the central banks, which probably won't be repeated ever again.

I would at least replace that with a vanity and if you don't have one, install a nice medicine cabinet.

In a healthy Association, they've taken into account that this will need to be replaced, and have planned for it, essentially charging everyone who has lived there over the last 20 years a nominal amount to be put toward the new roof when it's needed.With an unhealthy Association, they try to keep HOA dues artificially low, and when a repair is needed, they levy a Special Assessment, which puts the financial responsibility on those who live there currently. 

My wife and I are both doctors that retired from our career path in medicine through real estate investing.

It's a massive population glut and they're going to be seeking to capitalize on high asset values and the artificially low rates that enable them while they last (the low rates are double-impacting, of course, as they facilitate the buyers buying their homes as well as they themselves buying their next home).