Self-Representation in Court: Why Legal Help Can Make or Break Your Case

In the Australian court system, parties have the right to represent themselves — known as being a self-represented litigant (SRL). While this might seem like a way to save money, the reality is that navigating the law without professional guidance can have serious consequences for the outcome of your matter.
The recent New South Wales Court of Appeal decision in May v Costaras [2025] NSWCA 178 is a timely reminder of these risks — and they apply not just to family law, but across all areas of litigation: commercial disputes, property law, wills and estates, construction law, and beyond.
The Case: A Warning About the Dangers of Going It Alone
In May v Costaras, the respondent chose to represent herself in a complex property dispute. She also candidly told the Court she had relied on an artificial intelligence program to prepare her written submissions and visual aids for her oral address.
The Court noted:
“…a large number of authorities were referred to by the respondent. Most had little, if anything, to do with the issues in this case. One authority, at least, was an hallucination.”
The judges went on to explain that the submissions:
“…travelled well outside the issues raised by the appeal and addressed, for example, claims that… should have been made by cross-appeal. It would be unfair to the appellant to act upon claims forming no part of the appeal.”
The result? The Court found the submissions were:
“…of no real assistance to the Court… a cogent demonstration that the use of artificial intelligence by non-legally trained users is likely to add to the cost and complexity of legal proceedings without appreciable benefit.”
This is a sobering example of how well-intentioned self-representation can lead to wasted opportunities, increased costs, and potentially worse outcomes.
Why Self-Representation is So Risky
Self-represented litigants face challenges in all types of legal proceedings, including:
- Understanding the law and procedure
— Court rules, filing deadlines, evidentiary requirements, and jurisdictional issues are complex and unforgiving.
- Identifying relevant legal arguments
— Without training, it’s easy to focus on irrelevant points or miss the strongest arguments altogether.
- Presenting evidence properly
— Even strong facts can be lost if evidence is not presented in a legally admissible form.
- Managing procedural fairness
— Judges cannot give legal advice, and procedural missteps may limit what the court can consider.
- Avoiding unintended costs — Missteps can lead to adverse costs orders, wasted time, and in some cases, additional proceedings.
The May v Costaras decision shows how, even outside family law, courts can become frustrated when SRLs introduce irrelevant, incorrect, or procedurally improper material.
The Value of Professional Legal Assistance
Engaging a lawyer means you have:
- A trained advocate who understands the law, the rules, and the best strategy for your case.
- An objective perspective to focus on legally relevant issues rather than personal grievances.
- Procedural compliance to ensure deadlines, forms, and evidence rules are followed.
- Risk management to avoid costly mistakes or unintended consequences.
In complex matters — whether it’s an appeal in the Court of Appeal, a building dispute in the Supreme Court, or a contested estate in the Probate List — professional representation is not just helpful; it can be the difference between winning and losing.
Final Takeaway
The judges in May v Costaras summed it up bluntly:
“…the use of artificial intelligence by non-legally trained users is likely to add to the cost and complexity of legal proceedings without appreciable benefit… More intrusive case management techniques may be needed in future to prevent self-represented litigants from unfairly increasing costs and complexity.”
If you are considering representing yourself, think carefully. The court process is not designed to be navigated without legal expertise. What may seem like a cost-saving decision can end up costing you far more — in time, money, and outcome.
If you are involved in a legal dispute, seek advice early. Our team has experience guiding clients through complex litigation and appeals, ensuring your arguments are relevant, evidence is properly presented, and your rights are protected at every stage.

Senior Solicitor
Email: kristen@hntlegal.com.au









