I am renting right now with a shitty do-nothing landlord, and in a dispute over maintainence --- the boiler is leaking and smoking up my apartment. I am under no such illusions.

Landlords maintain power through the restriction of supply. They don't need to actively do it, the single-family-home complex does it for them.

Land value tax (+ land use regulation reform) demolishes that. Appartment management, divorced from land speculation, will become the boring low-margin business it deserves to be.