Collective Space Team

Liz Bosanquet


Liz has worked in children’s social care for over 20 years. She is a social worker and has completed her post graduate diploma in systemic practice.

She started her career as a children with disabilities support worker before qualifying as a social worker and going onto work in local authorities in statutory and non-statutory roles and also has experience within the voluntary sector.

She joined Hackney as a consultant social worker in 2008 and was inspired by systemic social work practice within the Reclaiming Social Work model. Liz moved into a role as a systemic social work trainer, then into a head of learning post overseeing the development and delivery of all the training programmes and activities offered by the organisation.

She has worked as a consultant within systemic social work since 2012 and was a practice lead in the DfE’s Knowledge and Skills Accreditation programme.

Liz was motivated to set up Collective Space in response to the growing voice of social workers who are inspired by systemic practice and want to be able to offer more effective, more ethical and more human responses to family need. She continues to work as an independent social worker and systemic practitioner.

Jennifer Summer

Head of Learning

Jennifer is a senior systemic psychotherapist and an AFT registered supervisor. She has a BSc. (Hons) in psychology, MSc. in systemic ssychotherapy and an advanced diploma in the supervision and teaching of family and systemic therapy.

She has over 25 years clinical experience and has been an independent expert witness for court. Jennifer leads on the systemic content of various training programmes for many different children’s social care organisations and undertakes quality assurance of systemic training delivered by Collective Space. She continues to work as a specialist clinician for a local authority fostering service where she offers systemic supervision and consultation to the social work team, and undertakes direct clinical work with children and families.

Jennifer is the lead tutor on the consultant social worker development programme for Frontline. She coaches senior managers in children’s social care and has been a leadership development advisor for Firstline. Jennifer sits on the exam board for Collective Space’s accredited courses.

Samantha Fern

Head of Practice

Samantha qualified in 2007 with a BA (hons) in Social Work from the University of Sussex. She completed the Post-Graduate Diploma in Applied Systemic Theory at the Tavistock and Portman Trust in 2013. Samantha has 10 years’ experience of working with children and families in statutory, hospital and court settings, including FDAC, as a frontline social worker and first line manager.

She has held a position as principal social worker in a London authority and led on strategy to ensure children who are missing and vulnerable to child sexual exploitation were offered the right service. She then moved into a contextual safeguarding lead role before coming into post as head of practice in Collective Space.

Sam is responsible for overseeing all social work and clinical work with children and families provided by Collective Space and ensuring that practitioners are supported to deliver excellent practice.

Jovairia Ali

Expert By Experience

Jo joined Collective Space in July 2018. She has experience of receiving statutory CSC services including being in foster care. Jo is fiercely passionate about hearing the voice of the child and wants to influence social work to provide effective responses and support for children and young people.

Jo works with Collective Space within the quality assurance strategy as well as sitting on our exam board, ensuring that all our programmes have the child in mind.

Mark Huhnen

Social Worker, Family Therapist and Trainer

Mark trained as a Social Pedagogue in his native Germany before coming to the UK where his degree was considered a Social Work Qualification by the GSCC. He is also a registered systemic psychotherapist.

Mark has worked as a consultant and clinician in various authorities and continues to offer clinical interventions with families to support social work care plans.  He is an experienced lecturer and delivers various systemic training courses across the country for Collective Space.

Mark is currently undertaking a PhD in systemic practice.

Maria Takaendisa

Family Therapist and Trainer

Maria has a background in mental health nursing and has worked in both adult and CAMHS settings. She holds a BSc (hons) in mental health nursing (addictions) and an MSc in family and systemic psychotherapy.

Maria has worked as a family therapist in a child protection and child in need team and the gangs unit. Her role has often been to help embed systemic ideas within Children’s Services. Maria is also a visiting lecturer at Hertfordshire University teaching MSc & BSc Social Work trainees. Maria works with Collective Space delivering systemic training across the country.

Jamie McCreghan

Social Worker, Systemic Practitioner and Trainer

Jamie qualified as a social worker in Australia and gained an Advanced Certificate in Systemic Practice with Families in a Safeguarding Context through the Institute Family Therapy. Jamie has worked in a number of authorities across the UK as a frontline social worker and as a clinician. He currently manages supervising social workers within an independent foster care agency as well as teaches on the foundation year programme for Collective Space and offering group supervision for newly qualified social workers.

John Woolner

Family Therapist and Trainer

John qualified as a social worker in 1988. His background in social work has largely been in adult mental health. He qualified with an MSc in systemic psychotherapy in 2000, and has worked with a wide range of service users since. He continues to run a private practice; is a practice lead with Frontline; and is a specialist lay member sitting for the Mental Health Review Tribunal service. John has been delivering training in systemic theory and practice for the last ten years.

Shona Grant

Social Worker, Family Therapist and Trainer

Shona qualified as a Learning Disability Nurse and Social Worker in 2001. She has since been a child and family social worker, senior practitioner and consultant social worker within a local authority for 15 years.

Shona completed her qualifying training as a systemic psychotherapist in 2020 and now works at the gender identity development service within the Tavistock centre and as a trainer for Collective Space.

Karen Gaughan

Social Worker, Family Therapist and Trainer

Karen is a Social Worker and Systemic Psychotherapist of over 20 years. Karen has extensive experience across Children’s Social Care in different service areas and has performed different frontline and management roles. She is was most recently a clinician working within a Youth Offending Service.

Karen is a very experienced trainer and has worked for several training organisations as well as Collective Space. She offers high quality, bespoke clinical interventions for children and families.

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