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Sarah  Millar

Sarah Millar

Partner, Litigation

Key Contact: Osler Works – Discovery

Contact Information

tel: 416.862.4233



Bar Admission

Ontario (2003)

  • University of Toronto, J.D.
  • Queen’s University, B.A. (Honours)

Sarah Millar is a Partner at Osler, Hoskin & Harcourt LLP and the Head of Osler’s Discovery Management Group. Sarah practises exclusively in the area of discovery. She regularly advises clients on complex issues related to the discovery phase of litigation and regulatory proceedings including document preservation, the sound capture or collection of client documentation, a litigant’s discovery obligations, the use of electronic evidence in proceedings and the law of privilege. Sarah has significant experience managing large scale documentary review and production in complex commercial cases and in multijurisdictional matters. Sarah also advises clients on best practices in document management and data retention to facilitate litigation preparedness.

As Head of Osler’s Discovery Management Group, Sarah collaborates with our clients and litigators at the outset of each litigation matter to strategically design customized discovery solutions for our clients. She formulates a discovery plan and then collaborates with our experienced team of interdisciplinary discovery specialists who possess a broad range of legal, technology and management skills and experience to deliver the right blend of support to suit each matter in the most cost-effective, efficient manner.  Sarah also applies her experience as a member of the Ontario E-Discovery Implementation Committee, implementing best practices with respect to electronic discovery within the Ontario court system and litigation bar.

    • Goldcorp Inc. in the collection, review and production of client documents in a complex mining case and with several disputes over discovery issues as well as complex issues involving privilege, relevance and confidentiality.
    • Imperial Tobacco in the cost-effective identification, preservation, collection, organization, review and production of client documents in all product related class actions across Canada since 1995 as well as the management and review of productions from other parties.
    • Shoppers Drug Mart Corporation on preservation obligations and best practices to properly preserve documents in relation to a class action.
    • Vale Inco Limited on the review and analysis of over 50,000 paper documents of a historical nature for documentary production in a class action common issues trial, including the assembly of a large joint book of documents for use at the common issues trial. 

Who's Who Legal

  • Who’s Who Legal: Canada - E-Discovery Practitioners (2015-2018): Most Highly Regarded Individuals in North America.
  • Who's Who Legal: International - Litigation 2017.

  • Ontario E-Discovery Implementation Committee
  • Law Society of Ontario
  • Ontario Bar Association
  • Canadian Bar Association
  • Electronic Discovery Institute

  • Quoted in Mapping out an e-discovery strategy by Jennifer Brown in Canadian Lawyer (May, 2017)
  • Quoted in Casual or Committed by Sandra Rubin in Lexpert (June, 2017)
  • Ontario eDiscovery Institution, Advanced Technology Session: Leveraging Technology and Maximizing Technical Investment (presenter), OBA Conference, Toronto, Ontario (October 29, 2015)
  • The Perspective of In-House Counsel (moderator), OBA Ontario eDiscovery Institute, Toronto, Ontario (October 30, 2014)
  • E-Discovery Bootcamp (presenter), OBA Conference, Toronto, Ontario (May 22, 2013)
  • Litigating Economically (presenter), OBA Conference, Toronto, Ontario (April 20, 2012)
  • 360° Review Management (presenter), Technology in Practice Conference, Toronto, Ontario (June 13, 2012)