Dispute specialists.
Our exclusive focus.

One of four disputes firms in Australia with
a top percentile client satisfaction score from Legal 500.

Doyles Recommended Litigation 2026The Legal 500 Asia PacificLawyers Weekly Australian Law Awards FinalistLeading Firm Legal 500 Asia PacificBest Law Firms ranked by Best LawyersAustralasian Lawyer Top Boutique Firm 2024Client Choice Awards 2024 WinnerDoyles Rising Star 2024
Overview

Resolve your dispute with confidence and clarity

Aptum is a boutique litigation-only law firm specialising in commercial, tax and estates disputes, known for challenging the accepted norms, practices and traditional behaviours in litigation.

Our approach to resolving disputes leverages excellence through a niche focus, cuts through the noise and reduces uncertainty along the way, for which we have achieved a client satisfaction accolade from world leading legal directory Legal 500, placing us in the top percentile for client satisfaction of all Australian firms.

Aptum has experience on some of the most complex litigation conducted in Australia, and works with individuals and taxpayers, company directors, SMEs, the ATO and corporate entities of various sizes, both domestically and internationally, to achieve the best possible outcomes in disputes.

Services overview

Three disputes practices, one focus

01

Commercial disputes

Aptum runs commercial litigation for directors, business owners, executives and investors. Shareholder and partnership disputes, professional negligence, contract disputes, directors’ duties, insolvency litigation, class actions, financial services matters and complex debt recovery.

With a seasoned group of solicitors, former barristers, business directors and commercial experts, Aptum has the technical commercial knowledge to deliver outcomes across a range of industries.

Commercial services
02

Tax disputes

Aptum’s tax disputes practice is led by a former senior ATO lawyer and former acting Assistant Commissioner. ATO audits, objections, director penalty notices, Part IVC appeals to the ART and Federal Court, and state tax disputes including land tax and stamp duty.

Our insight into the inner workings of the ATO, courts and tribunals allows us to understand the policy considerations that shape decisions, craft persuasive arguments, and apply mastery to both state and federal tax disputes.

Tax services
03

Estates disputes

Aptum acts in estate disputes over substantial asset pools. Family provision claims, challenges to the validity of a will, executor and trustee disputes, superannuation death benefits, powers of attorney disputes and contested estate administration.

The same commercial litigation discipline Aptum applies to complex commercial matters is brought to sensitive family and estate conflict: early risk assessment, documented strategy, and a clear path to resolution.

Estates services
Why Aptum

What makes Aptum different

Specialist expertise

All we do is litigate complex commercial, tax and estates disputes.

No conveyancing, no general practice, no advisory work we cannot take to court. Recognised in Legal 500 Asia Pacific, Doyle’s Guide, Best Lawyers and the Client Choice Awards.

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Legal intelligence framework

Practical, ongoing risk assessment to focus on the essential.

Every matter runs on a documented strategy that updates as the evidence develops. You know where the case stands, what the next move is, and what the risk analysis looks like.

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Project management framework

Routine documented strategy through custom project management.

Stage-based cost forecasts, regular reporting, and scope changes documented and agreed in writing. Legal 500 described our project management and billing processes as market leading.

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Client reviews

What clients say

Nigel Evans, with David Adason and the Aptum team, are among Claim Funding Australia’s most highly valued and trusted collaborators. Nigel and the team wield a significant power to weight ratio and deliver a sophisticated and highly effective method to litigation and dispute resolution.

Jason Geisker Head of Claims Funding Australia and Principal Lawyer at Maurice Blackburn

Easy to work with, efficient and competent. The firm has implemented project management and billing processes which are unique and market leading.

The Legal 500 Collated independently by Legal 500 research team

As strangers to the Australian legal system, and indeed litigation funding, we probably weren’t the easiest guys to deal with. But Aptum made the process clear and there were no surprises.

Martin Fine Director
FAQ

Commercial litigation, answered

The questions business owners, directors and their advisers ask before a dispute becomes a proceeding.

  • Commercial litigation is the resolution of business disputes through the courts, tribunals or arbitration. It covers disputes between shareholders and partners, breaches of contract, claims against professional advisers, directors’ duties, insolvency claims, and disputes with regulators. It is distinct from transactional legal work in that the matter is already in dispute and the question is how it gets resolved.

  • Shareholder and partnership disputes, breach of contract claims, professional negligence claims against accountants, advisers and valuers, directors’ duty and oppression claims, insolvency and voidable transaction claims, debt recovery, construction and property disputes, franchise disputes, and misleading or deceptive conduct claims under the Australian Consumer Law.

  • As soon as a dispute looks like it will not resolve through ordinary commercial negotiation. Early advice protects your position on evidence, preserves privilege over your strategy, and often produces a better settlement than waiting until proceedings are on foot. Waiting until you are served is the most expensive way to start.

    When should a business hire a litigation specialist vs a general lawyer?

  • No. Most commercial disputes resolve without a hearing, through negotiation, a formal offer, mediation or arbitration. Court proceedings are one pathway rather than the default. What produces a good settlement is a case that is strong enough to run, which is why the preparation matters even when the intention is to settle.

  • It depends on the complexity, the forum, and how far the matter runs. A discrete contract dispute is a different proposition from a multi-party Federal Court proceeding with expert evidence. Aptum provides a stage-based cost forecast at the pathways assessment stage so you know what each phase costs before committing to it, and where a matter has strong prospects and adequate quantum, litigation funding may be available.

    How much does a litigation lawyer cost in Australia?

  • Most matters resolve at or before mediation, typically 12 to 18 months from filing. Matters that run to trial take longer. Urgent interlocutory relief, including injunctions and freezing orders, can be obtained in days where the facts warrant it.

    How long does litigation take?

  • Usually a portion, not all of it. The general rule in Australian civil litigation is that costs follow the event, meaning the unsuccessful party pays a contribution to the successful party’s costs. That contribution is typically 60 to 70 per cent of actual costs on the standard basis. Indemnity costs, which are closer to full recovery, are awarded in narrower circumstances including where a reasonable offer was rejected.

    Can you recover your legal costs if you win a court case?

  • Mediation is a facilitated negotiation where a neutral third party helps the parties reach their own agreement, and nothing is imposed. Arbitration is a private determination where an arbitrator decides the outcome and the award is binding and enforceable like a judgment. Litigation is the public court process. Many commercial contracts specify arbitration, which removes the choice.

  • Focus and seniority. Aptum runs litigation only, so every matter is led by a senior lawyer rather than delegated down through layers. Legal 500 placed Aptum in the top percentile for client satisfaction of all Australian firms.

  • A free, no-obligation first meeting with the practice lead who would run your matter. You set out what has happened and what you want, and Aptum tells you whether the claim is realistic on your facts, what the time limits are, and what the pathway looks like. If it does not make commercial sense to run the matter, we say so.

Offices

Acting nationally from three offices

01

Melbourne Head office

(03) 7020 9230
Suite 7.01, Level 7, 419 Flinders Lane
Melbourne VIC 3000
Disputes in Melbourne
02

Sydney

(02) 7202 3404
Level 1, 60 Martin Place
Sydney NSW 2000
Disputes in Sydney
03

Brisbane

(07) 3778 3693
Level 38, 71 Eagle Street
Brisbane QLD 4000
Disputes in Brisbane

Get immediate clarity in your dispute.