We don't pay vendors by credit card or cashapp because it is far too hard to keep the accounting straight with a high volume of transactions to do that. 

They always make sure to have line(s) of credit to get them through challenging periods.

Relatively small amounts of interest income ($1600+ per year) is the highest taxed form of income I have found if you have kids at home.After earning a few grand in interest, It takes away my child tax credits and gives me an effective tax rate of 70%.   

I realize this could have been bad luck (for the PM company) but while they accepted responsibility, they didn't, for example, reimburse the cleaning costs.

A PMC can get a bad reputation really fast and be forced to use only the WORST contractors that are unreliable hacks. 

I make sure I screen each potential tenant thoroughly (background and credit checks) and require references.

All that said, we just met them in the middle and gave them the credit because we wanted it to be over.

We have no debt and good credit scores, do we have any options for making this work?

I would definitely check Dunn and Bradstreet for any open lines of credit, liens, judgements and the like. 

What's the lowest credit score you will allow?