[tigroferoce]

You are giving for granted that there is a private someone that is payed to evict people from an house, but that's not how it works in many places in the world.

In Italy (and I bet in many other European countries) this is the public force that is in charge of doing this and there are a lots of exceptions (for instance, here, you cannot easily evict a family where there are children or sick people).

And if you involve the pubic force, then you are inherently accepting the concept of a central trusted authority, hence the decentralisation fails as a requirement.