Marion Balla, M.Ed., M.S.W., R.S.W. , Diplomate, Adlerian Psychology

President, Adlerian Counselling and Consulting Group Inc.

Co-director: Adlerian Integrative Therapy Certificate, Adler School of Professional Psychology, Toronto

Marion Balla is a Registered Social Worker who has provided counselling and consulting services for over 45 years as a counsellor, therapist, consultant, educator, trainer, facilitator, and coach for therapists, and clients in the fields of mental health and education, as well as in workplaces and organizations. 

She has been the President, Adlerian Counselling and Consulting Group, Inc. in Ottawa for 37 years, providing therapy and counselling to individuals, couples and families based on a holistic, cognitive-behavioural model of psychotherapy rooted in the theory and practice of Adlerian Psychology. As well she has designed, delivered and facilitated workshops, courses and keynote addresses nationally and internationally.


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Nadia Bulbulia, M.Psy.


Nadia completed her Master's degree in Clinical Psychology and brings diverse work and life experience. She was employed in a corporate environment for 15 years, where she mentored, coached and built key relationships prior to her own change in career. Through training and work, she gained experience in a hospital mental health clinic, in forensic psychology and private practice.
Her personal and professional experiences have contributed to her belief in the importance of creating trust and strong alliances in the therapeutic environment. Her belief is that everyone is capable of effecting positive change and she practices with a desire to find strengths, examples of resilience and providing encouragement through the process. 

Nadia works with adults at all stages of life to assist with depression, anxiety, anger, emotion regulation, work/life stress and coping with change. Her approach encompasses a variety of frameworks including Cognitive Behavioural Therapy, Dialectical Behaviour Therapy, Adlerian Psychology and Mindfulness.

Cathy Lumsden, MA, RP

Registered Psychotherapist

Cathy Lumsden is a registered psychotherapist, author, and speaker with over 30 years of experience in the field.  In her counselling, Cathy provides effective tools, skills, information and encouragement to help her clients find solutions to real-life problems. She has extensive experience working with anxiety, depression, separation/divorce and stress. In her corporate training programs, Cathy focuses on improving employee engagement and satisfaction which increases productivity and decreases staff attrition rates. In her coaching and counselling she provides effective tools, skills, knowledge and encouragement to help her clients find solutions to real-life issues whether it’s in the workplace or in their personal lives.

Cathy is the author of two books – one for adults, “The Best Advice Your Mother Never Gave You’ and one for children, ‘Debugging Those Bad Thoughts’. Cathy was the host of a successful TV show called “The Best Advice”, focusing on topics such as domestic violence, mental health, bullying, and separation/divorce.



Susan Prosser, R.N., B.Sc.N., M.A., R.P.

Faculty, Adler School of Professional Psychology, Toronto

Registered Psychotherapist

Susan Prosser has more than 30 years of combined experience in nursing, counselling, group leadership, parent education and psychotherapy. A Senior Associate with the Adlerian Counselling and Consulting Group since 1993, she has built a strong practice working with individuals of all ages, families and couples.

Susan’s interest in Adlerian Psychology began when she was training to be a parent educator in 1976. She has built on her Adlerian training and incorporates cognitive-behavioural approaches with emotion-focused and psychodynamic therapies that provide a holistic method of working with people. She is also trained in EMDR, a proven, effective method of healing the results of trauma.

With a focus on relationships — with self, partners, children, family, friends and colleagues — Susan works with clients to address depression, anxiety, burnout, trauma, couple unhappiness, family conflicts, parenting concerns, communication difficulties and self-esteem.



CLAUDE Tellier, M.A.,M.Éd.  (Counselling/Psychologie du Counseling)


Claude Tellier has 33 years of combined experience in coaching, mentoring, management and transformational leadership, as well as in psychotherapy.  As part of her second career she  pursued a Masters of Education in the Psychology of Counselling and  joined the Adlerian Counselling and Consulting Group in 2018.

With the belief that therapy can support people to reach their full potential, and a focus on healthy relationships and meaningful connections, Claude works with teens and adults struggling with anxiety and panic attacks, depression, family conflict, relationship issues, trauma, post-traumatic-stress, stress and burnout, work place stress and work-life balance.

Claude adopts trauma-focused interventions when working with people who have a history of complex trauma and symptoms of PTSD.  She integrates therapeutic approaches such as Cognitive Behavioral Therapy, Dialectical Behaviour Therapy, Emotional Focused Therapy, Solution-focused Therapy, Narrative Therapy, mindfulness and psychodynamic therapies that provide a holistic method of working with people.


Kathryn Zettel, M.A., M.Ed., R.P.

Registered Psychotherapist

Kathryn brings 25 years of combined experience as a psychotherapist, counsellor and adult educator to her clients at the Adlerian Counselling and Consulting Group.

Her lifelong passion and work has been to help people create the positive growth and change they desire in their personal and professional lives. Kathryn works with clients to address anxiety, depression, stress, anger, compassion fatigue, burn out, self-esteem, loss, life transitions, work life-balance, work related pressures and relationship challenges with partners, friends, family, and colleagues.

Kathryn’s professional training as a therapist and adult educator form the basis of her clinical practice.  She uses a mindful, holistic approach that incorporates client-centred, emotion-focused and cognitive-behavioural interventions within an Adlerian psychological framework.