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.

Get architect into the house when you are in escrow, get all drawings and site visit done while in escrow along with prep to submit once you close 2.

Look for private sales in public records or on FSBO sale sites, and/or6.

I wrote a book about this; it just appeared on Amazon in paperback. 

Quote from @Alex Zweydoff: For those interested, i recently updated the blog on our website with new relevant information regarding the law.

The only thing that no one else has mentioned is that required by law on site agent?

Check out their website.

Quote from @Jay Martin: Has anyone heard of or used Bluebird lending they have dscr loans, etc. opened in 2018 in Philly, lend in a bunch of states, but hard to find info on them. have not heard of them but based on the website appear legit.

I do have a property manager on-site to address any concerns my tenants have. 

Some lending attorneys now recommend interviewing your borrower in a recorded Zoom call, using scripted questions, to document their intentions.Your list and communication clause comments, @Jonathan Chan, appear to reflect a do-it-yourself approach.