We collectively have experience with start up companies, architecture, business lending and medicine.  

Do they pay for food, medicine, travel to work, etc.?  

I use an ACH service which debits the tenant's accounts.

@Steven Hamilton II gives me a head ache.  

Contactless (online) payments is a big deal given the current state of things during C19, especially with the right platform that allows your tenants more options (ie. debit/credit card option, ACH payments, or even expedited payment processing, along with rent/payment due date reminders, and the ability to report positive payments to TransUnion in order to give your tenants' credit scores a boost; this acts as an added incentive for them in the long run as well).

I use an ACH payment service to setup the schedules and collect payment. 

Jamie, what you described sounds like a whole bunch of heart ache.

And how does this work for switching over automatic direct debit/ACH out of the tenants' bank accounts?

We hire a 3rd party professional management company to run the day-to-day operations, which frees us up to find more deals, and we have a lot less head aches than we did with smaller properties.

Investor's heart ache when spouse criticizes them for wanting to be an investor?