Our Team

Welcome to Toronto Family Therapy! Get to know a bit about our therapists below. Stay tuned for updates as our team continues to grow.

Joanna Seidel - Clinical Director and Founder

Joanna Seidel - Clinical Director and Founder

Social Worker, RSW, MSW, Acc.FM

Joanna Seidel has been counselling individuals, families and children and has helped couples re-connect for over a decade. She is a Child and Family Therapist and specializes in separation and divorce. She has been on panel of Clinical Investigators for the Office of the Children’s Lawyer since 2011.

Joanna holds a Bachelor of Arts Degree in Psychology, graduating with Honours from York University, and a Master of Social Work Degree from the University of Toronto. She is a Social Worker registered with the Ontario College of Social Workers and Social Service Workers in the Greater Toronto Area. She is also a member of the Association of Family Conciliation Courts.

Joanna is the owner and operator of Toronto Family Therapy, a private practice in Toronto. Prior to establishing her private practice in Toronto 2006, Joanna worked in mental health settings and children’s agencies.

Joanna Seidel has particular expertise in the area of separation and divorce. She has worked extensively in her practice with families and children, helping them manage the often difficult, stressful and emotional process of separation and divorce. With Joanna’s guidance, families learn strategies to cope with this challenging process and to minimize the conflicts and disputes that arise.

To book an appointment call our office at (416)-629-7410 or click book now to fill out a contact form.
Jackie Marshall

Jackie Marshall

Social Worker, RSW, MSW, Acc.FM

Jackie Marshall is a Registered Social Worker and an Accredited Family Mediator. She has been in practice for over 20 years working with individuals, couples, families and children. She graduated from University of Toronto, with her Masters of Social Work in 1996. Jackie has extensive experience and training in the areas of separation and divorce, family mediation, intimate partner violence, relationships and power imbalance, parenting coordination and reintegration therapy.

Jackie is an expert in child development and works with children to help them adjust to change, including issues emerging from separation, divorce, and remarriage. She specializes in helping families manage conflict, repair damaged relationships, and communicate more effectively.

Jackie has worked with Mediate393, Toronto’s court-connected family mediation service, since 2012. As an Accredited Family Mediator and an Information and Referral Coordinator (IRC) Jackie interacts with a diverse and varied client population. As an IRC, Jackie provides community resources, referrals, information and guidance in a number of areas including; family mediation, domestic violence, legal aid, family court process, mental health and accessing legal advice.

In her capacity as a Certified Family Mediator (Acc.FM), Parenting Coordinator (PC) and Individual, Child and Family Therapist, Jackie strives to ensure that every client feels heard and seen and accepted for exactly who they are at any given point in time. Jackie’s training and professional experience have culminated in an open and unique perspective as a therapist.

Jackie is a dedicated therapist for Toronto Family Therapy. She is compassionate and works with her clients to recognize their strengths and abilities, overcome their challenges, and adapt, modify and pivot as life’s circumstances change. Jackie provides her clients with an educative and therapeutic milieu, within a safe and non-judgemental environment for clients to share in confidence, while gaining confidence.

Jackie’s professional memberships include Ontario College of Social Workers & Social Service Workers (OCSWSSW), Ontario Association of Family Mediation (OAFM), Ontario Association of Social Workers (OASW), Family Mediation Canada (FMC), Association of Family and Conciliation Courts (AFCC), Family Dispute Resolution Institute of Ontario (FDRIO).

Keren Wisniewski

Keren Wisniewski

Social Worker, RSW, MSW

Keren Wisniewski is a registered social worker with over 10 years of experience working with children, adolescents, and families. Keren has experience working as a children`s service worker and clinical social worker, working with youth aged 0-25 and their families. Keren has supported youth who are in care and placed in foster and residential homes and she has participated in helping youth reintegrate back home to their families successfully, with the voice of the child highlighted. She utilizes a trauma informed lens and a strength based framework to provide effective interventions to a diverse population of clients. Keren has experience in counselling clients who have experienced mental health struggles, separation and divorce, trauma and violence, attachment disorders, school and learning challenges, human trafficking, social and emotional challenges, and addictions. In addition, Keren has supported clients identifying with the LGBTQ2S+, BIPOC and marginalized communities.

Keren has a strong understanding of the psychosocial development of children and adolescents and she is able to form a strong therapeutic alliance with the clients she works with by fostering an empathic, trusting and nurturing therapeutic environment. Keren has been a member of the Adolescent Counselling Team for the past decade and she is very skilled in working and supporting positive mental health with at risk adolescents and helping to mediate family conflict. By utilizing various intervention modalities Keren is able to help clients better understand their struggles, attachments and how to repair their relationships. In particular, Keren has extensive skills in supporting clients who are dealing with crisis oriented situations such as youth running away, engaging in self harm and experiencing suicidal ideation and exposure to high conflict divorce and separation.

Keren has the strong counselling and critical thinking skills to support the social emotional development of her clients. She is trained in trauma informed practice, motivational interviewing, harm reduction, Dialectical Behaviour Therapy, and crisis intervention and these skills have assisted in her being able to provide a high level of support to her clients and their wellbeing. In addition, Keren is able to provide parenting support to clients and their families by identifying prosocial goals and devise resolution plans to achieve long term success.

Keren holds a Masters of Social Work degree from University of Toronto Factor Inwentash Faculty of Social Work and she is registered with the Ontario College of Social Workers and Social Service Workers (OCSWSSW), and the Ontario Association of Social Workers (OASW).

Keren is proud to be a part of the Toronto Family Therapy &Mediation clinic and looks forward to using her expertise and therapeutic relationships to support her clients. She works endlessly with her clients to help them to recognize their strengths and overcome life’s challenges. Keren works with families to help restore the family unit in whatever manner fits best for the family, in a safe and supportive therapeutic environment. Keren believes that her clients are the experts on their situation, however they might need some support around communication, goal setting, and conflict resolution to achieve success and well being.

Kinga Burjan

Kinga Burjan

Registered Psychotherapist M.A., R.P.

Kinga has specialized in working in the mental health and wellness field for over a decade. She has experience working with individuals, couples and families facing hardship, conflict, communication issues, separation, divorce and addictions. Kinga possesses a deep understanding of the underlying issues experienced by people with mental health concerns, trauma and/or an addiction, helping her clients walk through to the otherside of the pain and confusion where hope, self-agency and empowerment await. Prior to her Master’s degree, Kinga was a yoga teacher/therapist for 8 years which enhanced her experience and practice with mindfulness, understanding and application of the "mind-body connection", as well as knowledge and application of many stress-reduction techniques.

Her breadth and depth of experience has fine-tuned her mindful, person-centred and eclectic approach to therapy. Kinga is known for her attuned listening skills and ability to reflect what is going on for her clients; in essence being a mirror for her clients to see themselves more clearly. Throughout the years she has learned many techniques that help her clients disantagle the thoughts and feelings that keep people feeling stuck, overwhelmed or helpless. In addition, she provides multiple tools and techniques (as per her clients’ needs) that assist her clients to be better equipped to face the challenges that brought them to therapy in the first place.

Kinga has had several roles over the past decade, from yoga teacher, yoga therapist, to clinical therapist, clinical manager, nursing student preceptor, and clinical director. She obtained a Bachelor of Science (Hons) Degree from the University of Waterloo, a 2,000 hour Yoga Therapist certificate from Amara Yoga School, and a Master of Arts in Theology: Spiritual Care and Psychotherapy Degree from Wilfred Laurier University. Kinga is in good standing and qualifies for Independent Practice with the College of Registered Psychotherapists of Ontario. In addition, she has completed a variety of therapy trainings including Cognitive Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), Emotion-Focused Therapy (EFT) for Couples, Motivational Interviewing (MI), Solution Focused Therapy (SFT), Eye Movement Desensitization Reprocessing (EMDR) Therapy, Brainspotting (Phase 1), Cognitive Processing Therapy (CPT) for PTSD, Satir Transformational Systemic Therapy, and completion of an Immigrant and Refugee Mental Health Course for Health Service Providers.

John Dunn

John Dunn

Social Worker RSW MSW

John Dunn has the privilege and distinction of being recognized as a practicing Psychotherapist in the Province of Ontario and is a Registered Social Worker (RSW) with the Ontario College of Social Workers and Social Service Workers (OCSWSSW). He received his Bachelor of Arts Degree (Psychology), as well as his Bachelor of Social Work (BSW) and Master of Social Work (MSW) Degrees from the University of Windsor in Windsor, Ontario.

His career spans a period of approximately thirty years, during which time he has worked in various community settings and with countless individuals who have experienced overwhelming conditions and experiences in their lifetimes. John is a dedicated and focused practitioner, having enhanced his practice through development and use of such clinical modalities as Trauma Informed Therapy, Cognitive Behaviour Therapy, Dialectical Behavior Therapy and Motivational Interviewing. Over the course of his career, he has worked with adolescents, adults, couples and groups, with a singular focus upon improving quality of life and wellness for all of his clients.

John has spent countless hours focusing upon areas of behaviour modification, emotion regulation, relationships, trauma, stress management, and reconciliation. Topics which have often been discussed during therapy include anger, loss, resentment, fear, loneliness and mistrust. He endeavours to instill hope and optimism in his clients, so as to achieve the best possible outcomes for themselves and their loved ones. These levels of practice and expertise have assisted him greatly in working with those who have been impacted directly by the reality of separation and divorce. He has worked with many individuals who have experienced the challenges and adjustments which are related to these forms of transition and change.

John demonstrates an acute sensitivity and compassion for those who find themselves navigating through these often difficult sets of circumstances. His desire is to provide support, and an opportunity for growth and understanding, in an effort towards making necessary adjustments.

John is proud to be part of the Toronto Family Therapy program and looks forward to the opportunity of providing assistance and support to those of whom he has the good fortune to meet.

Dorothy Koziorz

Dorothy Koziorz

Social Worker, Child Therapist MSW RSW

Dorothy (she/her) is an enthusiastic and compassionate child therapist who is well-versed in supporting young people across various areas including anxiety (general, social, separation), emotion regulation, mood and self-esteem, anger management, selective mutism, identity, life adjustments/transitions, separation and divorce, and trauma. Dorothy grounds her work in the self-identified goals of each young person and their family, and seeks to mobilize their inherent strengths by instilling hope.

Dorothy is child and family centered in her approach, and can skillfully implement various therapeutic modalities including Emotion-Focused (Family) Therapy (EFT, EFFT), Cognitive Behavioural Therapy (CBT), Narrative Therapy, and mindfulness-based practices. Dorothy is also a trained and certified facilitator for Circle of Security Parenting, focused on strengthening the attachment, connection, and emotional security within the infant/child and parent relationship. Dorothy currently supports the neonatal population and their caregivers at the Hospital for Sick Children (SickKids) in the Neonatal Intensive Care Unit (NICU), and has worked across child, youth, forensic, and health-care settings. Dorothy considers her work deeply relational, creative, collaborative and trauma-informed.

Dorothy is dedicated to nurturing a therapy space that fosters trust, and firmly believes in the power of relationships in supporting resilience and healing for all. Dorothy is actively involved in Diversity, Equity and Inclusion efforts in her community, and recognizes the mistrust that may exist between communities and health-care structures. As a white, female, cishetero social worker of European descent, Dorothy is committed to anti-colonial, anti-racist, and anti-oppressive practices in her work. Dorothy believes that each young person and family possess their own unique strengths and identities, and aims to place them at the forefront of their care.

Dorothy holds a Master of Social Work Degree from York University and is registered with the Ontario College of Social Workers and Social Service Workers (OCSWSSW).

Kristen Chambers

Kristen Chambers

Parenting Time Support Worker

Kristen Chambers provides supervised and therapeutic parenting time sessions, as well as in-home or virtual child, family and parenting support sessions. She has a degree in Early Childhood Development, and is a mother of two teenagers. She has created a lifetime career of supporting families to heal, feel heard, and to find joy. This passion has stemmed from her own life experiences, and her firm belief in the good in people and the restorative power of human connection. Kristen has worked with families for over 25 years in child development, family crisis, parenting support, counselling, and coaching. She has worked in the fields of maternal and post-natal care, child abuse, parent-child conflict, child behaviours, parenting conflict, separation and divorce, domestic violence, teen online safety and human trafficking. Kristen believes in people’s ability to create change for themselves, and to find the answers, and her role is simply to support you in doing so. She works with family members from a non-judgemental, trauma-informed, strength-based, family centred approach. Kristen is thrilled to begin helping you and your family find joy!

What can Kristen help you with – supporting your children’s emotional development; communication within your family; worries about your relationship; feelings of uncertainty and confidence as a parent; worries about your children’s safety online, in the community, in relationships; worries about connectedness as a family; becoming the best mother or father you hope to be; worries about safety in relationships; reaching your individual and family goals; managing behaviours; working through separation issues for your family; supporting you to make a plan to begin a deeper journey through therapy and other services; anything that might be impacting on you and your family!

What Kristen can help you do – identify areas of struggle in your family, individually, as parents together, as a family; empower you and your family to feel in control of positive change; help to put pieces of the puzzle together to better understand triggers, responses, and to clarify strengths and challenges; help you to create small steps to bring about the change you wish to see; problem-solve with you along the way; provide options for additional supports to consider along the way; be flexible and creative in how you work together to meet your family or child’s needs