Rebecca Sim



(236) 317-5563

(604) 674-9245

Rebecca offers experience in all aspects of enforcement and securities regulatory proceedings and related litigation focusing on matters involving allegations of securities fraud, insider trading, market manipulation, illegal distributions, discretionary trading, and money laundering.

Rebecca has extensive experience guiding clients through regulatory investigations, protracted shareholder disputes, regulatory and criminal proceedings, and commercial disputes. Rebecca provides risk-management advisory services and provides strategic advice to management on workplace investigations and regulatory-compliance assessments.

Rebecca has appeared in front of the British Columbia Provincial Court, the British Columbia Supreme Court, the British Columbia Court of Appeal, the British Columbia Securities Commission, the Alberta Securities Commission and the Ontario Securities Commission.

Prior to joining the firm, Rebecca articled and worked as an associate at a leading national Canadian law firm.

Rebecca earned her bachelor’s degree, with honors, from the University of Waterloo and her law degree from Western University.


Cozen O’Connor Expands International Offices with Strategic Additions in Vancouver and Toronto

June 14, 2021

The new additions will further expand the firm’s North American Intellectual Property, Securities Litigation, White Collar Defense & Investigations, Product Liability, and Commercial Litigation practices.


  • Western University, J.D., 2018
  • University of Waterloo, B.A., with honors, 2014
  • British Columbia, Canada
  • Ontario, Canada
  • Alberta, Canada

Association of Certified Fraud Examiners

Canadian Bar Association

Women’s White Collar Defense Association