They say that cash flow somehow makes them magically immune to any downturn as if their tenants and their cash flow especially in lower end markets (where cash flow on paper looks the highest) will somehow be unaffected ... rent doesn't go down in a recession, it stops ... not all cash flow is created equal, and quality of cash flow in this case is more important than the quantity. 

OH GOD. but also explain one more thing - are single family home more immune?  

Canada isn't immune to mass-shootings, but it is far less common.

One might be able to derive a sense of security and control from these models, but reality will follow it's own, unpredictable and messy course.Even brilliant minds are not immune to this.

The black community (along with all other ethnic communities) is not immune to the ill-affects of the family breakdown.

Autophagy kicks in and rids the body of the old cells etc. most of your immune system is in your gut so if you heal the gut, you keep your immune system up.

Could be a slight off topic but MF properties would play much safer during the market correction because you can still pay expenses and the mortgage while few tenants can’t pay, plus many other benefits and advantages.MF was not immune to the 2008 crash you only have to look at  FLA GA NV  and other areas to see plenty of failed apartment deals.. 

Now, I'm immune to a lot of the bad things that come with investing because I've been fortunate enough to reap the benefits of the positives and I know to expect them.I also love that most real estate problems can be solved with money.

You cannot convince me that a PM that somehow "tricks" a client into approving a 100-hour lightbulb swap for $1,000 is completely immune.

I suspect now its going great one of the centers was BRAND NEW CONSTRUCTION.. but the 600 homes that were suppose to go in next door got shelved. in a 08 style melt down NOTHING is immune some areas trundle through other areas its mass extinction.