The tenants each can pay separately with their debit cards and it automatically gets deposited into my account.

Totally unfair as the banks would automatically begin to own all the prime, beach front properties as the home owners bail out and go into Foreclosure.

Check your state codes as they may state that a lease is automatically terminated in the case of a death.You can not bring her back.

Nothing identified here would automatically preclude you from getting a commercial mortgage, if that is the question. 

You would add any unpaid amount to the principal balance each month and, if legal in your state, charge interest on that total.This, in effect, compounds your interest and enables you to automatically reinvest the small amounts of cash that would not be enough to fund another loan.

In our state 3 judgements whether tenant pays or not is automatic eviction, so should they just issue pay rent or quit 3months in a row, accepting partial payments?

Believe it or not, It's not an automatic "No".

@Rosalie Taran You also may want to look into whether California will automatically withhold out of escrow for the taxes that will be owed to the state and take that into account when looking at your cash flows. 

I still have mortgage under my name on this property, and the monthly payment is automatically deducted from my personal bank account.

Guys, I've just completed one of my rehabs and because I use Cozy it automatically post it on Doorstep and Realtor.com.