I find that usually weeds out any problem guests. 

The only major difference is usually prepayment penalties and maybe some obscure, unusual loan terms in certain cases. 

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.

These will catch a buyer’s eye in any market, and it's no extra material cost to do so!

Manage their properties Provide welcome gifts/ goodie bags for their guests before check in Hauling extra supplies/ misc items to return to stores or other properties--Any other ideas that I can pitch to make myself more marketable?

By adding an extra bedroom, and opening up the 2nd unit by restructuring some of the walls, switching around some of the rooms in the first unit to make it more inviting and give it a larger kitchen.

So, the first question they usually ask a PMC is about fees - instead of asking about services and HOW those services are executed.EXAMPLE: PMC states they will handle tenant screening – what does that specifically mean?

How long are you usually spending on prep before you hand it all off to your CPA?

Compare yourself to these but do something extra to make it stand out.

Then you can choose to get a roommate to make extra money.