In my experience, that is almost never how it works. Landlords have to take a hard line. They negotiate with a tenant and then the whole building stops paying

In my experience, that is almost never how it works. Landlords have to take a hard line. They negotiate with a tenant and then the whole building stops paying rent the next week. The same thing is happening in retail as offices. Rents are, mostly, way higher than the market and landlords are quite happy for that to continue. Eventually the market is going to crack, I think everyone has acknowledged that...but landlords aren't going to be the ones to crack it themselves.