There is no fee to the LL or the tenant if they pay on line with an electronic check.  

I also moved them to electronic payment.  

@Art VealAre you referring to something similar like this?

The Art of the Deal..

I recommend people watch American Pickers if they want to learn the art of deal making.

NACHA is the organization that manages the development, administration, and governance of the ACH Network, the backbone for the electronic movement of money and data in the United States and is funded by the financial institutions it governs.

Get some electronic door locks, find a cleaner on Nextdoor and spend about 10 minutes a day per property adjusting pricing and managing cleaning schedules. 

I do not allow them to sign a lease until they've presented certified funds for security and first month's rent (usually at start of lease-signing appointment, or I'll send lease electronically once funds are deposited-- Google wallet works great for that). 

Adventures in CRE, they have free models, youtube videos and sample case studies.Underwriting is also more art than the science of modeling. 

Much of RE is about working with people, it's as much an art as a science and not everyone is cut out for it, just like not everyone can be a dentist.