If these tenant groups get their way there will be a collapse and eventual foreclosures etc leading to blight and a lot of neighborhoods failing. 

I understand that the principal underlying value will, absent a government collapse, never be impaired.

When the cities economy collapsed in the late 70's early 80's everyone started moving out of the city and into the suburbs or out of the city completely and into other states.  

The market may fluctuate, maybe slow down a bit, but there overall trend is very clear.Just like (over) supply (plus a little mortgage meltdown) caused the 2010 collapse, it is supply (shortage) and demand that is driving this now, and there is no change in direction until we see new supply, which we could only see in the form of high rise condos in opportunity zones and downtown.Most of my crystal balls expect at least another +5% for Milwaukee this year and I don't see a real reason why "Denver" could not happen to us here.We all have real estate PTSD from 2008, but when you look back in history you realize, this was a one time event with very special circumstances.

@Chad Urbshott I don’t know about a “collapse” but there will be some short term pain for sure.

You can't get those returns anywhere, not even in a Ponzi scheme before it collapses. 

Probably lucky for me the roof collapsed before I could close on it.  

In places that have a job market collapse, that is where you had people leaving the state for other employment and they saw reduced rent rates and higher vacancy.

They may have no construction sense, and think the roof may collapse.

In our area septic lines can cost you $10K real quick if blocked by roots or collapsing.