New and learning is good.There are different types of mortgage money, different sources of mortgage money and different ways mortgage money is amortized or calculated.There is regular Fannie Mae/Freddie Mac money. 

Scott Patterson hosts one the first tuesday of every month in Charlotte I believe.

There is chatter about the courts wanting to put moratoriums on evictions for a period of time which will create a host of additional issues. 

Many people actually say if it's more of a regular person rather than an investor it's easier to sell them on 8% than 16% because they assume at 16% if must be risky.

Should I AirBNB my current space or regular rental?

The smart play for regular people is to pull out of your index funds, into cash and wait for the bottom.

I get calls regularly from investors who have done exactly what you did and have come to realize that those high cash flow markets are anything but passive and the capex and turnover costs have killed them over the course of a few years.

Here are my picks:Lenders: Tim Swierczek at iLoan - very investor friendly, experienced, nice guy to work with.Lisa Billings at Keller Mortgage - low closing costs and great terms, great communication.Agent:Jordan Moorhead - personal friend and colleague, investor friendly, super knowledgable and great with numbers/negotiationAs for meetups, we host a few every month at our office, shoot me a PM for details.

I have never owned a trailer so I am not sure exactly how this would differ from a regular multi family house. 

A system would be something you do on a regular basis that increases your odds for happiness regardless of the outcome.