I am a Cash Buyer , Entrepreneur.  I buy and sell homes and wholesale Lease options . And I provide Rent to own homes for people with less -than perfect credit 

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.

It does not matter if you have a small online store, have a mobile coffee shop in a trailer or if you are flipping couches.

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.

If you time this well, and develop mid-late Recovery phase, your projects should be coming online right at the height of the demand depending on the market.

I couldn’t stand watching a portfolio of this size lose its relative value because it was 100% “safe”.

I added $20k to that to be safe and estimated $100k.I started at $330k and took off the $100k rehab and $10k carrying costs (interest only LOC and taxes, insurance, etc.)

I just looked online and they have plenty at Lowes.

It opens up some doors and I think the cost with some online programs is not outrageous.

Right now, all you are doing is book research or online research, so you need to put these random thoughts into the real world.