Contact Collaborative Problem Solving Staff

The CPS office is located at the Trillium Family Services and Parry Center Campus

3355 SE Powell Blvd., Portland, OR 97202

Our office hours are from 9AM-5PM Monday-Friday

Beth Holliman updated 7.29.19

Beth Holliman, MA, LPC

Beth Holliman, MA, LPC is a Think:Kids certified trainer in Collaborative Problem Solving and has played a significant role in the implementation of CPS in the state of Oregon. She served on the original CPS State of Oregon Coalition and led one of the state's first CPS implementations pilots. Beth has a MA in Counseling Psychology from Pacific University and is a Licensed Professional Counselor in the State of Oregon. She has extensive experience working with children and families with significant mental health challenges in both foster care and residential settings. Beth is available to provide education, consultation, and updates about the CPS model and status of implementation efforts across the state and various systems. Beth can be reached at 503-346-1482 or

Margaret Johnson, MSW

Margaret Johnson, MSW

Margaret Johnson, MSW is a Think:Kids Clinical Consultant and Trainer who  specializes in applying and implementing CPS in child welfare settings. A west coast native, Margaret has been working with at-risk families and children since 2000. She earned her social work degree from the University of Southern California. Margaret is passionate about addressing the impact of social trauma 
on behaviors and is committed to helping marginalized communities integrate the Collaborative Problem Solving model. She has completed in-depth study and application of trauma-informed care under the tutelage of the National Council on Behavioral Health and has participated in child trauma assessment and case management training with Dr. Bruce Perry. As a writer, artist, and musician, Margaret approaches all aspects of her work and life with creative energy. Margaret can be reached at

Elisa Ross

Elisa Ross
Administrative Coordinator, CPS and OPAL Programs

Elisa Ross earned a Bachelor of Fine Arts in painting from Indiana University. She is the Administrative Coordinator for OPAL and Collaborative Problem Solving programs in the Department of Psychiatry at OHSU. She brings with her many years of administrative experience working in higher education and social service. She is honored to be supporting this amazing team. In her spare time she enjoys  spending time with her family & pets, walking in the woods, creating art projects, and sharing food & conversation with friends. Elisa can be reached at 503-346-1490 or

Have a question?

Do you want to ask a CPS expert a specific question? If so, please email and one of our CPS trainers will respond to you.