As it turns out, processing the territories and resources of a former rival was a massive pain in the ass to do.
People had to be hired to protect it, hidden security measures had to be reworked, secret caches had to be dug up and redistributed, it was a whole fucking mess of work. This was especially the case when the aforementioned claimed territory had a lot more secret treasures than displayed.
When the Zhen Clan did a thorough sweep of the Wolfe Family estate, they had discovered that the Wolfe family were in the process of establishing a second cultivation chamber.