Usually the more doors per apartment building and/or the more money you put down, the more cash flow per door.You could also look into buying businesses (owning them, not running them), good old fashioned stock market investing (not retirement accounts, im talking brokerage accounts so you can actually use the moeny before retirement age) , cryptocurrency investing, or a mixture of all of them. 

Mine use their investments as a hedge against currency fluctuation as well.8.

Another issue that can work for you or against you is the currency exchange so that needs to be factored in.

I trade Foreign Currency in the early morning and I follow the US dollar pairs. 

One of your best sources in North America would be Ken Lothian at Thermotec Fibreglass in Carp, Ontario (just outside Ottawa) ... who knows, with the 25-28% currency exchange in your favour, they might not bee too terribly expensive.You can get windows that are wood or a wood/aluminium blend.

He said, well that is the only currency I would accept.I told him: "WHAT the Freck!?

Maybe there is something to the crypto currency.but keep warning folks its post like these that will help the community.

Why risk anything at all if you only make just north of 4% on your arbitraged fiat currency?

You make a good point, Kevin, that it could mean buying some other currency.

I want to be prepared.Callapsed stock markets,devalued currency, and higher taxes are just a few thoughts of our future.