I think rent should be a pretty easy one to sort out. Rent basically goes 3 places: landlord, landlord profit, and paying mortgages. The first is solved through broad income supports, the second can be eliminated for the duration, and the third can be postponed by just extending the mortgage. That requires coordinated government intervention, of course, but it's not impossible.

If landlords don't have to pay for themselves, furloughed staff, or rent, keeping a business in suspension seems much more doable.