
Theresa Armstrong is a distinguished Director at Madison Marcus, where she leads the Parramatta Law Practice with a focus on Family Law, Wills and Estate Planning, and Employment Law. Admitted as a legal practitioner in New South Wales in April 2004, Theresa has been an integral part of Madison Marcus for over 16 years. Her expertise was further recognised in 2010 when she became an Accredited Specialist in Personal Injury, certified by the Law Society of NSW. Theresa's leadership abilities shine as she navigates complex domains like insurance litigation, estate and probate matters, will disputes, and beyond. Known for her client-centric approach, she emphasises cost-effective solutions while delivering a warm, personalised service. Her formidable negotiation skills and strategic litigation acumen have consistently exceeded client expectations, providing pivotal representation to individuals and small businesses facing substantial entities. Theresa's impact extends to community engagement, encompassing association involvement, charity fundraisers, and mentoring roles. Her advocacy for civil rights and commitment to supporting the underdog have been a cornerstone of her career, recognised by her finalist position at the 2014 Women Lawyer of the Year Awards. Her academic background includes a Bachelor of Commerce and a Bachelor of Law from Western Sydney University, complemented by a Diploma in Legal Practice from The College of Law Australia. Her contributions to the legal landscape are mirrored by her roles as Director at Veritas Law Firm and on the Board of Mind Connections Specialist Health Services, underlining her dedication to both legal excellence and community service.
Director Board of Directors
Mind Connections Specialist Health Services
Jan 2021 - Present • 5 years 10 months

Director
Madison Marcus Law Firm
Feb 2002 - Present • 24 years 9 months

Director and Accredited Specialist in Personal Injury
Veritas Law Firm
Feb 2002 - Present • 24 years 9 months
Director Solicitor
Consolidated Lawyers
Jan 2002 - Jan 2011 • 9 years

Diploma in Legal Practice
The College of Law Australia

Bachelor of Commerce (BCom); Bachelor of Law (LLB)
Western Sydney University
1998 - 2003
ALW Elite Woman 2023 (badge shown)
Finalist - Women Lawyer of the Year Awards
Last checked: 4 May 2026 • Checked with Law Society of NSW