I just looked into it in depth, looking for a way to shelter my pension from an impeding market crash.

However, according to our By-Law/Master Deed, Garage is considered a part of "Limited Common Elements".Specifically, from our Master Deed: The Limited Common Elements of the condominium shall include any deck, patio, stairs, or garage to which there is direct access to that unit which is appurtenant to same, or any car port to which a Unit has been assigned....These Limited Common Elements are reserved for the use of the Unit(s) either immediately adjacent thereto or for the use of Units to which they have been assigned, to the exclusion of all other Units....Any expenses of repair or replacement relating to said Limited Common Elements, or involving structural maintenance, repair or replacement, shall be the responsibility of the Association, excepting for costs necessitated by negligence, misuse, or neglect of the Unit by a Unit Owner.One day, someone (not anyone I know) likely backed into our garage and crashed the garage doors.

The "layover house" that you alluded to is commonly referred to as "crash pads" in the airline industry.

Today, most rent in less than one week.During the 2008 crash, zero decrease in rent and zero vacancies.

If you wait to save your way to a down payment you could be chasing interest rates as they climb.... in my opinion only reason not to buy you Multifamily house now is because you can't find a good deal or you think real estate will be cheaper in the next year or so because of a" crash ".I believe you have nothing to lose by buying and living in your multifamily property for little to no money down and if it cash flows will help you drastically beef up your reserves.

They did away with that after the housing crash.

Before the 2008 crash, I used to have my securities license.

Prices are higher than they were before the last crash.

I bought a Vegas townhome cash  in the middle of the RE crash during the GFC of 2008-just as you guys taught. 

Then you have the cash ready to deploy when a deal presents itself or if a crash happens you still have the cash.