Who We Are.

We are a group of professional, friendly and passionate individuals with over five combined decades of experience in accounting, bookkeeping, social work, mental health and most recently, working with the NDIS and their systems and processes.

Our Purpose

To deliver a professional and friendly service that makes it easy to exercise choice and control in a safe environment.

Our Vision

To set the standard of how plan management should be administered to allow clients to meet their NDIS needs.

Our Team

Acacia Plan Management Rob McDowall CPA

Robert McDowall FCPA


Robert is one of the managing directors of the Arabon group of companies, which include a boutique accounting, SMSF and business advisory firm and Acacia Plan Management.  With a background in accounting, taxation and business systems, Robert has extensive UK and Australian experience working with SMEs, small public companies and NFP organisations.  He is a fellow of CPA Australia and a Graduate of the Australian Institute of Company Directors.  Outside of his work life he coaches high school rowing and spends time raising his young family.

Nina Nguyen CPA


Nina has worked for our parent company Arabon since 2016, initially as an accountant then moving across to support the launch of Arabon Care, now Acacia Plan Management in 2018.  Nina brings her friendly and knowledgeable manner to the team and enjoys making a difference in people’s lives.

Outside of work, Nina enjoys reading, cooking and baking. She adores spending time with friends sharing good food and creating good memories.

Ann O’Keeffe

Plan Manager

Ann has worked with our parent company, Arabon, for over 20 years in various roles. Ann is passionate about helping people and prides herself in always going above and beyond.

When Ann is not working, she enjoys walking with friends. She loves spending time walking along the beach and exploring bush walks. To balance out the outdoors, Ann’s ideal night would be dinner out with friends before taking in a theatre performance.

Linda Logan

Plan Manager

Linda has been a part of the family for 14 years with a varied career in bookkeeping, accounting and audit roles.  Linda is an empathetic individual with a great attention to detail.

When Linda is not in the office, she enjoys reading, going to the beach and staying fit and healthy. You can find Linda weekly attending Pilates, personal training and resistance training classes. Linda recommends everyone lift weights and try to be active. 

Marguerite Ellis

Plan Manager

Marguerite has over 20 years’ experience in bookkeeping and general office management. She brings to our team her detail-orientation, resourcefulness and endless curiosity.

Outside of the office, Marguerite is a craft enthusiast, in particular sewing and quilting. She loves being with her family, cooking and traveling overseas.

Jeni Vieira

Plan Manager

Jeni has a varied history working both as a qualified chef and as an administration assistant for different commercial businesses.  She prides herself on being friendly, efficient and hard working.

At home, Jeni loves watching a movie with her husband and three young daughters.  She’s also an avid gardener, enjoys upcycling old furniture and reading.

Acacia Plan Management Lillian Tebbutt

Lillian Tebbutt

Plan Manager

Lillian has been involved in the disability sector for over 10 years including support work, fundraising, employment, education and community programs.  Lillian brings her friendly and outgoing personality to the team and prides herself on having a transparent, adaptable and problem-solving approach to her work.

In her personal time, you will find Lillian travelling, diving, crafting, camping and enjoying special time with her family and friends.

What our clients are saying