Meet the Team


Glenda Buckley
Glenda Buckley


Glenda has more than 20 years’ experience in a variety of Human Service organisations including Government and Non-Government. Glenda in employed in an Executive role for the past 6 years and is currently the Director of Statewide Operations Network for NSW Department of Education. Glenda is passionate about supporting people and has experience in leading a NDIS service.

Maurene Horder
Maurene Horder
Vice Chairperson


Maurene has extensive experience as a Board Member and as CEO to Boards and Advisory Committees. She has worked for peak organisations in government, private enterprise, and not-for-profits. She has qualifications in Teaching, Applied Science, Association Management and is a member of the Australian Institute of Company Directors


Currently she is part time Chair of the Board and Managing Director, National Standards Development Organisation Ltd in which she has helped to get this socially responsible start up organization launched and recognized for its eco labelling standards for building and construction products. Her senior career positions have included:

  • Executive Officer, Planning Institute of Australia
  • CEO, Migration Institute of Australia
  • CEO, National Marine Safety Committee Inc
  • Community Liaison Manager Dames and More P/L
  • Regional Manager PACIA
  • Founding Executive Director Census Applications P/L

In other voluntary roles in NSW Maurene has served on the Board of the Alzheimers Association, Karabi Community and Development Services Inc, Fairfield Resources Centre and Cabramatta Community Service. She has also helped several Foundations to raise funds.

Carol Lawrence
Carol Lawrence


Graduate degrees in education in the USA, Graduate diploma in careers education, graduate diploma from Sydney University in health education.


Employed as a teacher in Australia for over 25 years Community involvement being part of Neighbourhood watch and assisting the Arncliffe family festival for two years.

Elaine J Cohen


Bachelor of Education specialising in disability teaching and behaviour management.


  • 20 years teaching in primary school
  • Teaching at ESL schools with integrated disability children in the class
  • Member of WH&S Committee at Hampden Park Primary School
  • Member of the Board of Directors of St George Area Intellectual Disability Services Ltd. since 1986
  • Board member (for 10 years) of Community Development Office at Bardwell Park.(umbrella group of many NGOs in St George, Marrickville, Canterbury and Bankstown)
  • Staff assessment and selection at school and at St George Area Intellectual Disability Services Ltd now known as Sunnyhaven Ltd
  • Carer of a sister with disability and carer of husband’s sister with disability
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Margaret Caskey


Bachelor of Arts and Diploma of Education (University of New England)
Graduate Diploma of Special Education (Kuringai College of Advanced Education)
Masters of Applied Linguistics (University of Technology)
Masters of Educational Policy ( University of Technology)


Margie has 5 years teaching experience in General Primary and 5 years in Special Education with a focus on intellectual disability.

Margie then became a full-time parent but found time to volunteer at her children’s and other local schools in the following capacities:
Helper, Special Education Program
Reader, Writer Scribe- School certificate and higher school certificate for students with special needs, and
Reading Helper in classrooms

More recently:
Royal Far West Multi-Lit Program (K-6)
Manly Village Multi-Lit Program (K-3)

Tibetan Homework Club – helping children of refugees completing their after-school study commitment as well as extra literacy and numeracy skills input.

Fund Raising

The Abstract Committee supporting Royal Institute for Deaf and Blind Children. This year 2018 raising money for Braille Printer as it is not included in the National Disability Insurance Scheme.

This is Margie’s first board appointment.

Patricia Hiesberger


Masters in Business Administration (Finance & Project Management through UTS)
Bachelor of Business Studies (Management – through Charles Sturt University)
Industrial Engineering Associate Diploma
Aircraft Mechanical Engineering Trade Certificate


Patricia has over 30 years’ experience within the Transport industry – primarily Airline, Rail & Bus. She has extensive senior level experience in strategy management, project management and compliance with a strong focus on safety and reducing operating costs.


Maree Mullins
Maree Mullins
Chief Executive Officer

Maree holds a BA in Community Management and an Associate Diploma in Community Organizations and Welfare. Maree has been a CEO and held senior executive roles and brings a great depth and passion for working with people with a disability. She has worked in the Disability, Youth, Community, Out of Home Care, Creative Arts and the Justice sectors for the past 33 years and brings her entrepreneurial leadership to Sunnyhaven.

Joumana Sanjakdar
Joumana Sanjakdar
Executive Leader – People & Culture

Joumana has extensive experience in Human Resources Management having worked in a number of government organisations specialising in Social Justice Strategies including the development of key public sector policies and Management of Workplace Relations. She holds a Graduate Diploma in Public Sector Management and a background in mediation.  Her passion, experience and background will facilitate strategic alignment for Sunnyhaven.

Nazia Ahmed
Nazia Ahmed
Executive Leader – Customer Relations

Nazia Ahmed has worked at Sunnyhaven for the past 7 years. Nazia held the position of Office Manager and her new and exciting role is Customer Relations Manager.

Nazia looks forward to her new role in supporting Clients and families transition to the NDIS. Nazia holds a Diploma in Business Management.

Leonie Wild
Executive Leader – Operations Manager

Diploma in Management, Certificate IV in Disability, Certificate IV in Enrolled Nursing and Certificate IV in Training and Assessment.

Leonie worked at Sunnyhaven in the Disability and Aged Care sector since 2001 in direct care and later accommodation management, co-ordination of respite and in 2017 went on the try different specialties in the disability sector with another provider and has now returned to Sunnyhaven in 2020 to take on the position as Operations Manager.

Leonie has a strong sense of social justice and a history of advocating for people with a disability, their families and carers.
In her current role she applies her co-ordination and management experience to the overseeing and expansion of community living projects across the St George and Sutherland.