A bunch of people living in a shared house on a non-profit basis isn't even a co-op, that's generally just a "share house". Share houses are fine, but they have

A bunch of people living in a shared house on a non-profit basis isn't even a co-op, that's generally just a "share house". Share houses are fine, but they have disadvantages, such as the lack of a nice centralised way of finding and moving into one, and the fact that stuff like finding new tenants and negotiating interpersonal conflicts between tenants and kicking problem tenants out all have to be done by the residents themselves, and many (not all) people would rather just outsource all that stuff to a central authority. So I think there's definitely room in the market for a company which deals with all that guff for you, in exchange for charging a somewhat higher rent.