There's no accountability on tenant (simply fill out a bogus covid hardship form saying they cannot pay anything).Is it possible for me or some professional to do a credit report and dig up information on what their net worth is and go after their assets in the courts and the judge would force them to pay out of their checking / savings / retirement accounts?

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

You could also talk to professionals like attorneys or CPAs who might know people interested in lending.

@David Sam Cost segregation can benefit a property under $400K by accelerating depreciation to offset taxable income, especially if you qualify as a real estate professional or use the short-term rental loophole.

Then his phone rang.

You're going to have to contact Zillow by phone to solve this.

That level of service requires a professional commitment, which is why agency agreements are necessary. 

Some of them have phone numbers as well, but pretty much all of them are marked as Do Not Contact.Does this seem like an effective track to stay on?

Of course emails and phone calls are going unanswered.

These are brokers that provide professional T12.