About Us

De Saxe O’Neill is a local Northern Beaches family law firm who are here to help and support you as you go through separation and divorce.

Unlike traditional firms, we offer a private and supportive space to discuss how we can address your particular needs. We use family friendly processes where required and will also talk to your former partner or their lawyer if needed. If you need tough representation in court we will be there with you, but our first choice is to use alternative methods and engage other professionals such as mediators, financial advisors and counsellors to assist you and your family to get through this difficult time.

Why Us

As a small Northern Beaches family law firm,
we offer a flexible, personal service to our clients:

We adapt our approach for every family, whether a gentler or a tougher approach is needed

We know people are not keen on seeing a divorce lawyer but once you come and see us, we will support you all the way through

Located in a small, discreet building, we offer our combined expertise and technology to deliver excellent advice and service

We are experts in our field  and choose to practice in select areas of law which we know and can deliver to you at a high level

Our Team

Janine De Saxe – Director

Janine is a highly experienced family lawyer, having practised in all aspects of  Family Law for over 30 years. Janine places great importance on keeping families out of court.

Margie O’Neill – Director

Margie is experienced in all areas of family law including parenting, property settlements, Hague Convention matters, relocation and recovery applications, same-sex and defacto matters.

Linda Lu – Lawyer

Linda’s main practice areas are within family law and estate planning. Linda attends divorce hearings conducts parenting and property settlement negotiations and proceedings in the Federal Circuit Court and Family Court of Australia.

Antonia Marran – Lawyer

Since completing a postgraduate Juris Doctor Law degree at Macquarie University whilst living in Singapore for the past decade, Antonia has practiced exclusively in Family Law. She has an interest in sensitive parenting matters including where mental health and substance abuse issues are present and her prior experience as a journalist has enhanced Antonia’s depth […]

Jacqui Griffiths – Office Manager

Jacqui joined De Saxe O’Neill Family Lawyers in 2018 and having spent all her working life in various law firms enjoys the human side of family law.

Lynne Pursley – Accounts Manager

Lynne worked as a legal secretary for 17 years, after which she took a break from law and spent many years in the exhibition and events industry. She has now come full circle and returned to the legal industry, this time as a bookkeeper. Lynne is a cheerful addition to our team and is always […]


  • The Law sociaty of NSW
  • Doyles - Family Law 2020
  • Family Law Section - Law Council of Australia - Member 2019/2020
  • Collaborative Professionals (NSW) inc

Contact Us

‘Bakery Mews’ Suite 6,
67 Wanganella Street, Balgowlah NSW 2093
Phone: 02 9948 3820
Email: reception@dofamilylawyers.com.au