@Steve @bhaugen there is the "mietshäusersyndikat" which is due to a very bad coop-law in germany a umbrella corporation for housing projects. every project pays a part to the umbrella corp. and they lend 50% of the money to house projects to buy their projects. here is a presentation on it in multiple languages: https://media.ccc.de/v/34c3-9031-mietshausersyndikat_den_immobilienmarkt_hacken