He could tell by popping off the doors they the insulation was falling off (sparks flied at one point) and the evaporator condenser was heavily corrosive which can leak harmful R22 refrigerant into the home plus found bio growth inside leading to potential health concerns.

This is why I understand what you are saying about low-risk because you are insulated using long-term mortgages.

In today's world, the better you insulate yourself, the better.The downside is you have to keep separate books and file a separate tax return plus in complicates your personal return a little.

The only real violation might be that a wall was constructed in the door area, and I have seen additions where the door was left in place with insulation inside and wall covering and siding outside!

There are still plenty of mold-factory basement guys working, especially down in the southern states where insulation isn't the same kind of problem it is in, say, Minnesota.I am a handyman.

So I can speak of commercial residential (5+ unit housing), the answer is not only is there NOT any collapse or apocalypse impending but actually commercial residential is even more insulated.

This involves more work such as exterior walls, weather proofing, insulating, adding electrical, and heating/cooling.

They also have a dedicated number for my tenants to call for any issues, giving me a layer of insulation from being too accessible to them.This makes most sense to owners who work full time jobs, has over 4 units to manage and do not want to pay for a full-service property manager.

Having 100 SFRs vs 100 units in an apartment community both provide insulation from vacancy and major expenses in one or a handful of doors. 

I really felt somewhat insulated from it.After the first big dip I scraped together the sum of my life savings and decided to buy a house right around my 21st birthday.