The Circle of Security® Network Staff


Robert Marvin, PhDRobert S. Marvin, PhD

Dr. Bob Marvin was an undergraduate student and research associate with Mary D. Ainsworth at The Johns Hopkins University. He received his Ph.D. in developmental and clinical psychology from the University of Chicago in 1972. After completing a postdoctoral fellowship at the Institute of Child Development, University of Minnesota he began teaching at the University of Virginia, where he is currently Professor Emeritus in the School of Medicine and Research Professor in the Department of Psychology. He is also Director of the Ainsworth Attachment Clinic in Charlottesville, Virginia. Throughout his career, Bob has been active in basic and clinical attachment research, and in intervening with families who have children with chronic medical conditions and/or histories of disrupted early relationships. This work has led him to focus increasingly on developing clinical tools for assessing and intervening with families of foster and adopted children, and with families experiencing divorce or other types of parental separation.

From 1998-2006, Bob was the Principal Investigator on federally-funded projects that developed and tested the Circle of Security® version of Attachment Theory, and The Circle of Security® Intervention protocol. Currently, he is active in implementing variations of this Circle of Security framework in developing community-based partnerships among professionals working with families with at-risk children. These include children at risk of removal, foster and adoptive families, children of divorce, families who have children with chronic medical conditions, and parent-child relationship challenges related to trauma. He travels extensively to train these professionals in implementing science-based practices that integrate developmental psychology, clinical psychology, and family systems work.


Administrative Staff


Archer Maness, LPC Abby Sorrells Wanda Seagroves, LCSW Lisa Rio, MA
Archer Maness, LPC Abby Sorrells, LPC Wanda Seagroves, LCSW Lisa Layne, MA, MA

Associate Director

Head of
Program Development

Director of Supervision

Network Coordinator
Resident in Counseling

Candace Widmere Steve Marvin Cherri Marvin  
Candace Widmer
Finance & Bookkeeping

Steve Marvin, BA

Cherri Marvin, RN
Admin Coordinator



Charlottesville Area Therapists


Lisa Rio, MA Gavin Connor, LPC  
Lisa Layne, MA, MA Gavin Connor, LPC Melissa Shore, MSW  
Certified COSN Therapist Certified COSN Therapist COSN Therapist  
Resident in Counseling   Supervisee in Social Work  
Mary Kahwajy-Baron, LPC Michelle Freeman, MA Lori Guidone, PA, MA  
COSN Therapist

COSN Therapist
Resident in Counseling

COSN Therapist
Resident in Counseling



Richmond Area Therapists


  Sharon Brenner, PhD    
  Sharon Brenner, PhD    
  Certified COSN Therapist    
  & Research Coordinator    


La Crosse, WI Area Therapists


  Nicole Milliren, M.S., LPC    
  Certified COSN Therapist    
  & Certified COSN Supervisor