
Annabel is a California-qualified attorney and member of Bartko Pavia's trial team, with a practice that spans complex commercial, intellectual property and antitrust matters. Prior to joining Bartko Pavia, Annabel worked at an AmLaw100 firm, representing Fortune 500 companies in commercial and liability disputes.
Annabel commenced her legal career in Australia, clerking for Associate Justice Efthim at the Supreme Court of Victoria. She was then admitted as a barrister at the Victoria Bar, where she developed a strong complex commercial trial practice representing corporations, government entities, liquidators and high net worth individuals, often serving as second chair to leading Australian commercial counsel. Prior to moving to the United States, Annabel taught insolvency law at Melbourne Law School, a top ten global law school.
Annabel has a Master of Laws from the University of California, Berkeley, where she attended on scholarship and received the prize for legal research and writing. Her focus was on AI law and regulation, intellectual property and technology law. She speaks and writes regularly on these issues and is a founder and executive committee member of the Bar Association of San Francisco's AI and Technology Practice Section.
- Bar Association of San Francisco – Founding Executive Committee Member, AI & Technology Practice Group
- Bar Association of San Francisco – Executive Committee, Cyber Security and Privacy Practice Group
- The Lawyers Club of San Francisco – IP Inn of Court
- California Lawyers Association – IP, Antitrust and litigation practice groups
Credentials
Education
- University of California Berkeley, Master of Laws, Scholarship recipient; prize for Legal Research and Writing; Dean's List, 2025
- University of Melbourne, Juris Doctor, 2017
- University of Sydney, Bachelor of International and Global Studies (Philosophy and Political Economics), 2012
Bar Admissions
- California State Bar, 2023
- Victoria Bar, 2021
Court Admissions
- United States District Court for the Northern District of California, 2023
- High Court of Australia, 2021
- Supreme Court of Victoria, 2018
Recognitions
- UC Berkeley - Prize for legal writing and research; scholarship
Experience
- Secured dismissal of claims against a Fortune 500 technology company through a successful demurrer to the second amended complaint.
- Represented a leading satellite communications provider in a trade secret misappropriation claim against a competitor, securing a favorable settlement.
- Successfully obtained dismissal via demurrer of claims against an international technology company with no nexus to California.
- Successfully represented an individual creditor in obtaining approval for a liquidator's sale of a corporate trustee's right of indemnity against the individual beneficiaries of a corporate trust (Australia).
- Successfully represented a Melbourne property developer in a complex building contract dispute, securing favorable rulings on both claim and counterclaim (Australia)
Insights
Media Mentions
13, April 2026
Annabel Tresise Comments on Landmark AI Fair Use Ruling in Harvard Art Law Review
Annabel Tresise, Senior Counsel and a member of Bartko Pavia’s trial team in the Litigation Practice group recently authored an article in Harvard Art Law Review Volume 2.
Publications
-
Annabel Tresise, Case Comment, Bartz v. Anthropic PBC, 787 F. Supp. 3d 1007 (N.D. Cal. 2025), 2 Harv. Art L. Rev. 1 (2026).
- Annabel Tresise. Case Comment: Bartz v. Anthropic PBC — Copyright Liability for AI Training Models,
Harvard Art Law Review (forthcoming, 2025). - Annabel Tresise, Jake Goldenfein and Daniel Hunter, “What Blockchain Can and Can’t Do for Copyright”
(2018) 28 Australian Intellectual Property Journal 144. - Webb J., Patterson J., Tresise A. and Miller T., on behalf of the Australian Council of Learned Academies (July
2019) Legal Services: Input paper for the Horizon Scanning Project, “The Effective and Ethical Development of
Artificial Intelligence: An Opportunity to Improve our Wellbeing.” - Panel Speaker, State of the Arts: Copyrightability & AI in 2025, hosted by the Bar Association of San Francisco,
Art Law Section (2025). - Presenter, Ethical Duties Owed to Former Clients, LegalWise Seminars (2021).
- Panel Speaker, Alumni Reflections, Orientation Day for the 2021 JD class at Melbourne Law School (2021).
- Panel Speaker, Diverse Legal Careers (Alumni Series), JD Forum at Melbourne Law School (2020).
- Panel Speaker, Disrupting Law, hosted by the Disruptive Business Network (2019).
- Debater, Disruptive Debate Series: Lawyers Will Be Irrelevant, hosted by the Disruptive Business Network
(2019). - Panel Speaker, Responsible AI: Foundation Panel and Fishbowl, hosted by Responsible AI Melbourne (2018).
Areas of Focus
Insights & News
Media Mentions
27, October 2025
Honors and Awards
03, April 2026
Patrick M. Ryan Recognized as a Daily Journal Leading Commercial Litigator
Speaking Engagements
14, April 2026
Honors and Awards
27, March 2026
Media Mentions
16, April 2026
An Nguyen Ruda Named Dual Finalist for Law.com's 2026 Women, Influence & Power in Law Awards
Press Release
17, December 2025
Honors and Awards
26, November 2025
Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List
Media Mentions
30, May 2025
Honors and Awards
23, September 2025
Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer
Honors and Awards
01, January 2025
Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings
Press Release
14, May 2025
Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart
Press Release
23, December 2025
Speaking Engagements
30, January 2026
An Nguyen Ruda Joins Panel on Law Firm Governance and Organizational Structure
Press Release
31, May 2019
Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.
Media Mentions
05, February 2024
Speaking Engagements
20, February 2026
An Nguyen Ruda Discusses Building Authentic Culture at Bartko Pavia LLP
Speaking Engagements
17, February 2026
Giovanni Spinelli Presents at Milan Bar Seminar on Judicial and Prosecutorial Independence
Media Mentions
13, February 2026
AI and the Human Premium: An Nguyen Ruda on the Legal Late Night Podcast
Honors and Awards
08, November 2023
Press Release
11, March 2022
Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action
Press Release
07, February 2023
Press Release
30, October 2025
An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit
Honors and Awards
17, May 2023
Media Mentions
27, October 2025
Honors and Awards
03, April 2026
Patrick M. Ryan Recognized as a Daily Journal Leading Commercial Litigator
Speaking Engagements
14, April 2026
Honors and Awards
27, March 2026
Media Mentions
16, April 2026
An Nguyen Ruda Named Dual Finalist for Law.com's 2026 Women, Influence & Power in Law Awards
Press Release
17, December 2025
Honors and Awards
26, November 2025
Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List
Media Mentions
30, May 2025
Honors and Awards
23, September 2025
Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer
Honors and Awards
01, January 2025
Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings
Press Release
14, May 2025
Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart
Press Release
23, December 2025
Speaking Engagements
30, January 2026
An Nguyen Ruda Joins Panel on Law Firm Governance and Organizational Structure
Press Release
31, May 2019
Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.
Media Mentions
05, February 2024
Speaking Engagements
20, February 2026
An Nguyen Ruda Discusses Building Authentic Culture at Bartko Pavia LLP
Speaking Engagements
17, February 2026
Giovanni Spinelli Presents at Milan Bar Seminar on Judicial and Prosecutorial Independence
Media Mentions
13, February 2026
AI and the Human Premium: An Nguyen Ruda on the Legal Late Night Podcast
Honors and Awards
08, November 2023
Press Release
11, March 2022
Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action
Press Release
07, February 2023
Press Release
30, October 2025
An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit
Honors and Awards
17, May 2023
Media Mentions
27, October 2025
Honors and Awards
03, April 2026
Patrick M. Ryan Recognized as a Daily Journal Leading Commercial Litigator
Speaking Engagements
14, April 2026