You can literally find answers to all of your questions within the confines of this site.

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.

And the need for you to reside on site in order for the business to work. 

Many people on this site only are interested in a specific geography.What type of product are you looking for? 

Some areas are strong on both sites but does seem to lean one way or the other. 

Check out the San Antonio Housing Authority site on landlord resources: https://habctx.org/habc-landlo...

I couldn't believe it when I looked at that site and saw it was offered for $1497! 

As a lender you know how busy it has been the last 5 years for lending that I don't have time to browse this site.

We are here to assist you with any properties you are looking to invest in on our site or anywhere.To your success, Zach

I know it needs a few things (bathroom size) revised to make it code compliant, and I will need an architect to help navigate zoning (another thing we don't do in Houston :D), site plans, elevation aesthetics and local requirements.