Family Law – Our focus is to get parenting right

Get a just and equitable property settlement

Our focus is to get
parenting right

Professional legal services tailored to your needs

Expert child
custody lawyers


Law firm helping people


We can help you determine your eligibility for a divorce, prepare paperwork, and serve notices to the other party on your behalf. Our goal is to simplify a complex process so you can get out of the marriage as quickly as possible and move on with your life.

Family legal solicitors


Children are often the innocent victims caught in the crossfire of their parent’s split. We aim to help you reach an arrangement with your ex that is fair and protects the best interests of the child or children, no matter what that looks like. You have a right to a relationship with your child, and we will help you fight for it.

Legal services for homes


The division of marital assets is one of the most difficult processes after children are considered, and our team is here to help you effectively navigate it. We can assist you in determining the true value of your assets and advise you on what you should and shouldn’t fight for during negotiations with your ex-spouse.

Solicitors for any family matters


Our criminal law department is highly experienced in representing clients across a broad spectrum of matters ranging from minor to serious in nature. We will protect your rights and advise you on the best path forward at every stage, from the initial police interview, to courtroom hearing and everything in-between. You are not alone.


Parenting Law

The paramount consideration is the best interests of the child.

To determine what is in a child’s best interests we turn to section 60CC of the Family Law Act and weigh and assess the factors listed there which include.

Property & Finances

Following separation when it comes to dividing up the family assets – the home, super, furniture, cars, the boat, shares, investment properties, etc.. clients describe the process to us in terms like ‘confusing’, ‘a hideous process’ and ‘daunting’.

Divorce Lawyer Sydney

Being a result-driven and reputed law firm in Sydney, We have a huge number of authorized and experienced Divorce lawyers in Sydney.

Family Law for Dads

It can be heart breaking. It can be very challenging. It can be straightforward. In all cases, having a lawyer who will stand up and fight for your rights is vitally important.

Family Law For Mums

Family law for mums is often a period of high anxiety and stress. The worry of where the children will live, who will get what property, who will pay for what, can all appear daunting.

Child Custody Lawyer Sydney

Following on from a divorce or relationship breakdown, the social science research indicates that it is very important to try and ensure the financial needs of a child are met and this can be achieved by putting a suitable arrangement in place.

Gay and Lesbian Divorce Lawyers

A same-sex marriage encounters all the same difficulties as a heterosexual one and a same-sex divorce lawyer at O’Sullivan Legal is ready to help you resolve your disputes the same way we have done for hundreds of traditional marriages.


Ben O’Sullivan Lawyer


Tom O’Sullivan Lawyer

Special Counsel and Mediator

Clive Mills

Senior Family Lawyer

Sandra Banjamin Lawyer


Anita Petrovic Lawyer


Wil Gordon-Manley Lawyer


Reta Benjamin Lawyer


Emma Youdale


Polina Workman

Legal Secretary

Shaun Chua

Legal Assistant

Is it you?

We are hiring, please get in touch with us.

Overseas Relocation and COVID

Overseas Relocation and COVID-19

There is no definite distance of relocation with a child that warrants application for a ...
Apprehended Violence Order

What happens if I get an AVO?

Consequences of an Apprehended Violence Order This question arises repeatedly, and we provide the ...
Federal Circuit Court

Full Court identifies when court delay can visit unacceptable injustice to the parties

Case Note- Manifold and Alderton- Considering gross and deplorable delay in the rendering of a ...
surrogacy in NSW

An important case addressing surrogacy in NSW

Seto & Poon FamCA 288  This case was heard before Stevenson J in March 2021. The Applicants ...
Legal Practice in the time of a Covid-19 Lockdown

Legal Practice in the time of a Covid-19 Lockdown

The Coronavirus (Covid-19) Pandemic has forced adaptation and innovation in the Family Law Courts ...
high conflict parenting disputes

Is parenting coordination the way of the future in addressing germane challenges in high conflict parenting disputes

Parenting Co-ordination is a child-focussed Alternate Dispute Resolution Process developed in the ...
The High Court

The High Court rules on the effect of overseas order made in Dubai on rights under the Family Law Act in Australia

Clayton v Bant HCA 44 (2 December 2020) In Clayton & Bant the High Court highlighted that ...

Let's chat:

Please call our Case Manager on 02 8090 9400 or contact us using the below form: