Is there a precedent for owners and developers to jointly set up property companies?

There are precedents. It is a common practice for owners and developers to jointly set up property companies. This mode of property management company is usually jointly established by the owners and developers, and jointly managed and operated by the owners and developers. The advantage of this model is that owners and developers can jointly participate in property management and share the responsibilities and obligations of property management, thus improving the quality and efficiency of property management.