That sounds scary to have to keep track of all your account numbers / check books / debit cards / etc

You can transfer the funds from your rental account to your personal account each month.Having a separate checking account for your rental side is a good idea, so that you can easily track any expenses specifically for that side of the house and directly deductible from your rental income.I setup a checking account for each property I own and use a debit card for the account for any specific purchases. 

Learn debits and credits.

I had a Target debit card, made purchases on said card, returned something and was credited back money to my checking account from Target.. somehow my mom must have been funneling my dad's business money to me through Target!

You’re now in the business of balancing credits and debits!

All are employed at a local manufacturer, one is on staff and with documented income, but the others working through a staffing agency which deposits pay to a debit card and produces no pay statements and will not answer specifics about pay (cannot verify income).

Is there an easier way like direct debit from my bank account?

Remote can be...Marketing, Lease Signing, Lockouts (install coded smart doors), background checks & screening, Virtual Tours, Payments (online or ACH debits)Live In Person (local team)...Showing units, Posting Notices, Evictions, Dealing with Complaints (some need live interaction), Maintenance Calls, Property Condition Tours, Meeting Utility Companies, Meeting Contractors, verifying Contractors work, Live personal touch with residents (can improve tenant relations depending on property), Cleaning, Turns, Police CallsThrough the years, I've learned that there are places to save money and places to invest. 

Debit Card, credit means you can't afford it.

No exceptions.Poor Credit/No Credit: This depends but we will do double the deposit or pre-paid rent etc.I know every state is different but we find that if we make sure the tenants getting into our parks have a good history the park runs a lot better.