It's a good question. Certainly many of these landlords have mortgages that need to be paid on their properties and the usual maintenance and upkeep of said properties. If landlords cant pay their mortgages, I'd assume the properties would be foreclosed by the banks - they'd likely give tenants a notice of some period of time before they'd be required to vacate. I don't know all the ramifications but my guess is that property valuations are going to go down fairly steeply as well. I've seen some efforts to hold rent strikes and I think those efforts will have more negative than positive results. I'm sympathetic to those that don't have enough to pay the rent because of job loss and economic shutdown but there are certainly those out there that will take advantage of the situation as an opportunity to try to shirk payments.

I wonder if policy could be useful here: temporary rent and mortgage freezes perhaps?