The great recession occurred in 2008, most of the 2000's had extremely high appreciation mostly caused from wall street greed and lenders writing loan to anyone who could fog a mirror.That said, today's crisis has an entirely different cause to it and will also have a different effect.

I am in the process of turning it over to a property manager, but I will still retain control of which leasing agents show the units.

Once you open up the walls you will see the true extent of the problem. 

Retain all the receipts for insulation and HVAC repair.If the unit is indeed up to livable standards then show him proof and part ways.

I've known people who sold private businesses to others with 100% owner financing, but in cases where they owned real property free & clear they retained title to the properties and only sold the operations with a lease in place, or sold an option to purchase the property separate from the business sale.

As opposed to subject-to where you'd be responsible for making loan payments to the seller's lender each month, they retain that responsibility and, therefore, that safety and control. 

I had to replace pretty much everything metal in that room, door hinges, door knobs, smoke detector, metal wall art (why did they even think that was a good idea?)

But after years of banging my head against the wall with similar experiences to yours, we switched to self-storage and mobile home park investing.

Additionally, if you run up against a wall with QBO setup shoot me a message I'd be happy to help.Kind regards,Jori  

‘The only instance I can think of where the passive investors don’t retain further interest in the property would be if they are note holders and not equity owners.