But i guess in today's world where things are on line and investors are used to Internet communications this is much easier than those days.

edit: you can store your coins offline too in case the net goes down for a bit. 

Review their online financials/annual statements.

Is the information about “In MA, tenants generally have 30 days to pay repair costs...” available somewhere online? 

I just looked online and saw that in Seattle for months to month lease the landlord is only required to give 20 day notice.

In my experience, most of the online calculators are just taking an educated guess for you.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

.$20-27 - Seartapedic Pillow Top Mattress Topper - https://www.walmart.com/ip/Sertapedic-Pillow-Top-Mattress-To...We have the Black edition from Costco on the beds at our lake house.

It seems you are falling for the alarmist rhetoric you’ve been reading and watching online.

edit: by "actually get the lawyers involved" I Meant having to litigate against a big bank.