Marianne Schneider Corey Marianne Schneider Corey is a licensed marriage and family therapist in California and is a National Certified Counselor. Marianne has been actively involved in providing training and supervision workshops in group process for human-services student and professionals; she regularly facilitates a self-exploration group for graduate students in counseling and co-facilitates weeklong residential workshops in personal growth. With Jerry, Marianne has conducted workshops in various countries. Read More Read Less