Jack is a specialist Commercial Litigation Lawyer adept at resolving complex commercial disputes, with a focus on Professional Negligence, Building & Construction, Employment and Insolvency related claims.
Jack Lindgren
Senior Associate Solicitor
Accredited Specialist (Commercial Litigation)

Jack is an Accredited Specialist in Commercial Litigation and a key member of our team. He has a wealth of experience in relation to a range of areas including; commercial and home building disputes, security of payment adjudications, professional negligence and defamation actions, workplace and unfair dismissal claims and insolvency related claims.

He has appeared in the NSW Civil and Administrative Tribunal (NCAT), the Local, District, and Supreme Courts of NSW, the Federal Court and Federal Circuit Court and the Fair Work Commission.

About Jack

Jack is very much an advocate for our proactive approach to assisting businesses to identify and address legal issues and supports our Directors of Enterprise Growth & Corporate Advisory to support clients and strengthen their businesses.

Whilst Jack does assist individuals resolve personal claims, his practice is primarily focused on assisting businesses by resolving complex commercial disputes swiftly and implementing strategies and legal solutions designed to avoid or reduce the impact of them in future.

Very professional and helpful, can’t recommend him enough.

Had a great experience with Jack Lindgren.

Brendan Benson

It gives me great pleasure to introduce Jack Lindgren without hesitation, as being a Lawyer of the highest standard and integrity.

Quite recently I found myself needing a specialist Law Firm to commence litigation on my behalf in the area of Commercial Law. I was drawn to Roberts Crosby Mortensen Lawyers given they are recognised as Commercial Litigation Specialists. In order to complement my requirements I was introduced to their Senior Commercial Litigation Lawyer, Mr Jack Lindgren. From our initial introduction, I was taken by Jack’s sincerity and obvious level of legal knowledge in what was a very complicated issue, one in which he hadn’t himself, as a lawyer, previously been exposed to. I was left without any doubt whatsoever that he was indeed the Lawyer I required to represent my legal concerns. I am happy to extol his virtues with the highest degree of confidence, he is the most competent of all Lawyers I have ever had the need to engage. He is without peer when it comes to Commercial Litigation and I seriously could not recommend him highly enough to anyone who finds themselves in the unfortunate situation to require legal representation in his area of expertise.

Brett Kirkby

Jack, Hamish and the team have been a fantastic resource for our company.

Their advice, and then actions in ensuring all our documentation is robust has presented our company in the most secure way. They respond quickly, are extremely professional and highly skilled. Great to know they are on our team!

Abby Crawford

The advice and support given by Jack was invaluable.

“I highly recommend the team at Roberts Crosbie Mortensen Lawyers. Jack and the team recently assisted me with negotiating a construction contract and the advice and support given by Jack was invaluable.”

Monica Triffitt

Jack and Christa have been thorough, attentive and extremely professional with our case.

“They attended to our requests and carefully advised us of any concerns throughout the process. Thanks to their work we were able to receive a positive resolution.”

Harry Choi

I would also like to thank Christa and Jack for their prominent advice and assistance.

“Without the two of them, we do not think we can reach a successful result.”

Felicia Sanusi

We are happy clients and would recommend you to start communicating with them for your legal needs.

“We had a great experience working with Jack and Christa over our case. The Roberts Crosbie Mortensen team are definitely experts in their field and their approach were professional, concise and right on target.”

Stefanus Valen

Areas of Law

Who Jack works with

Jack works with a broad variety of companies, business owners, builders, contractors, and individuals, including: –

  • Those that have suffered loss or damage through the carelessness of others, in professional negligence claims against Lawyers, Accountants and other professionals;
  • Parties to contract disputes, in relation to issues including the existence and enforceability of contracts, breaches of contract, repudiation, contractual interpretation and damages;
  • Principals, builders, subcontractors and homeowners in relation to:
    • Contract disputes, administration and interpretation;
    • The recovery of progress claims, the service of Payment Claims and Payment Schedules and Adjudication Applications under the Building and Construction Industry Security of Payment Act 1999 (NSW); and
    • The enforcement of statutory warranties under the Home Building Act 1989 (NSW);
  • Employers and employees in relation to unfair dismissal and general protections claims in the Fair Work Commission;
  • Employers and employees in relation to their workplace rights and obligations, including drafting Employment Agreements, workplace relations, the enforcement of restraints of trade, redundancy and employees’ workplace rights;
  • Liquidators and private and corporate clients in various insolvency-related proceedings including in relation to unfair preferences and other voidable transactions, and public examinations;
  • Company directors in relation to their duties as directors, and potential personal liability for breaches of the Corporations Act 2001 (Cth) (including their involvement in breaches of duties by others);
  • Individuals and eligible corporations in claims for defamation and injurious falsehood respectively;
  • Commercial clients, advising on terms of trade, supply contracts and various commercial transactions.


Jack seeks to give advice that is considered, strategic and realistic, and which takes into account his clients’ broader interests, to ensure that disputes are either prevented, or managed cost effectively as they arise.

Jack is committed to ensuring his clients feel supported throughout the course of their dispute by explaining legal concepts and procedural issues to clients in simple terms, to allow them to make considered and informed decisions.

Jack has a background in engineering and motorsport and is able to quickly understand both technical and legal issues at the heart of a matter. His attention to detail and thorough forensic approach enables him to secure the best possible outcome for each client.


Jack is an Accredited Specialist in Commercial Litigation.

Jack has a Bachelor of Laws from the University of New England and a Graduate Diploma of Legal Practice from the College of Law.

Jack is admitted as a Solicitor of the Supreme Court of New South Wales and the High Court of Australia.



Outside of work, Jack enjoys spending time with his friends and family, cycling and playing soccer. He’s had a passion for motorsport since a young age and is a loyal (and long suffering) Newcastle Knights and Carlton supporter.


Meet Our Team

Our Specialist Lawyers include
3 Accredited Specialists in Commercial Litigation, 1 Accredited Specialist in Business Law and an Accredited Adjudicator under Security of Payment Laws.

We are a leading specialist business and litigation law firm delivering accessible big firm expertise with a personal client experience that is first class.

Our People
Law Society Accredited Specialists
99 %
More Accredited Specialists in Commercial Litigation than 99% of all law firms in NSW