As an AI, I don't have real-time access to the internet or …

As an AI, I don't have real-time access to the internet or databases, so I can't provide up-to-date information on specific legal cases against Landmark Education Corporation, Landmark Worldwide, or Erhard Seminars Training (EST). However, I can tell you that these organizations, especially EST and Landmark, have been involved in various controversies and legal disputes over the years.