They are there on time reliably, do a good job managing inventory/off site laundry, and generally do a good job cleaning overall.

Here is another post on this subject from BP:Learn to Live Life on Your Terms through Real Estate Investing on BiggerPocketsPlease note I have not taken this course or have info on it, just posting what I found on a quick search of this site.

You will want to insure a number of things as an MTR landlord: your interest in the building itself (owner's policy), your contents (owner's policy), your interests if a renter or guest is hurt on-site (landlord policy), and possibly flood, wind, lost-income policies.

That is good news. 

I am aware of Crexi, Bizbuysell, and Loopnet and reach out when I see something for sale on those sites.

Once you are on site you can decide if your $20K should be used as a downpayment on a double to house hack (to stop renting), a single to just stop renting, or a single to lease out.

Not a book, but Bill Faeth has a lot of free, good content on his site and YouTube videos.

The good news is that it's never to late to start!

They all tell me to got to Legal News because all mortgage related things are posted by them.

This is a real estate investment forum, so you won’t find many/any people on this site who deploy that strategy.