I'm on the side of the new owners on this one. The building is 100 years old, it obviously needs updating, and tenants are complaining about the things being done to upgrade their units. Give it a rest.
Anyone who has worked with contractors knows that its nearly impossible to figure out exactly when they're going to show up so giving an exact 24 hour notice is a guessing game.
The main tenant in the story is complaining that she came home and her fridge and stove were replaced. They took out her old ones and put in new ones and she's complaining about that. Yeesh lady, if they put in crap you could complain, if they put in new ones then thank them from saving you from a potential appliance breakdown and for the nicer appliances.
And yes, its disruptive to have demolition and renovation going on. That's how it works. Unless you want to move out, that's how renovations happen. Get over it. You're getting an updated, nicer building thats more attractive with better amenities. Be grateful that the owner's care about the place - the other option is your 100 yr old building continues to deteriorate and fall apart.