Lawyers Providing Seasoned Personal Injury

Photo of Ava Marion Hillier

Ava Marion Hillier

  • Partner, 1987


Brampton, ON




Direct Email: [email protected]

Ava Marion Hillier was born in Montreal and graduated with a Bachelor of Arts ( BA) from Queen’s University. She graduated from Osgoode Hall Law School and was called to the Ontario Bar in Toronto in 1980. She joined her mother Suzanne Hillier in legal practice in Brampton Ontario and carried on a general litigation practice in real estate and commercial litigation and criminal law until 1987, at which time she became a partner at Hiller and Hillier, thereafter specializing in personal injury litigation, including professional negligence claims. She co – founded the Ontario Trial Lawyer’s Association ( OTLA) in 1991.  She has presented numerous lectures , presentations and written numerous articles on personal injury litigation for OTLA and for its magazine,  The Litigator, since 1991. She has lectured  and presented for or on behalf of, The Canadian Institute, The Ontario Bar Association, Queen’s University Law School, The Canadian Bar Association, Insight, The American Association of Justice (AAJ), The American Trial Lawyers Association ( ATLA), The Canadian Medical – Legal Society,  MAAD ( Mothers Against Drunk Driving),  the Osgoode Hall Law Association and The Advocates Society.   She  served as a Director and Vice -President of  The Ontario Trial Association for over 7 years. She received the Distinguished Service Award from the Ontario Trial Lawyers Association in October of 2004.  In 1998 and 1995  OTLA awarded her The Most Popular Professor in the Trial Advocacy Course at Queen’s University.  She was invited to act as a Director of the Advocate’s Society from 2007 to 2010, and she has presented on behalf of the Advocate’s Society in Canada, Mexico and in the Cayman Islands.

Ava has appeared in trial courts at every level in Ontario representing injured Plaintiffs, and at the Court of Appeal. Her legal practice is restricted to personal injury litigation, claims arising from denied disability and other insurance applications including SABS claims as well as professional negligence claims. She continues to present on behalf of OTLA and has chaired numerous conventions since its inception in 1991.

She has no plans to retire.


Areas Of Practice

  • Personal Injury Litigation

Bar Admissions

  • Ontario, 1980


  • Osgoode Hall Law School, Toronto, Ontario
    • 1978
  • Queen’s University
    • B.A., Bachelor of Arts - 1975


  • Lecturer and Presenter, Canadian Institute
  • Lecturer and Presenter, Ontario Bar Association
  • Lecturer and Presenter, Queen’s University Law School
  • Lecturer and Presenter, Canadian Bar Association
  • Lecturer and Presenter, Insight
  • Lecturer and Presenter, American Association of Justice
  • Lecturer and Presenter, American Trial Lawyers Association
  • Lecturer and Presenter, Canadian Medical – Legal Society
  • Lecturer and Presenter, MAAD
  • Lecturer and Presenter, Osgoode Hall Law Association
  • Lecturer and Presenter, Advocates Society
  • Advocate’s Society, Canada, Presenter
  • Advocate’s Society, Mexico, Presenter
  • Advocate’s Society, Cayman Islands, Presenter
  • Presenter, OTLA

Honors and Awards

  • Distinguished Service Award, Ontario Trial Lawyers Association
  • Awardee, Most Popular Professor, OTLA, 1995 and 1998

Professional Associations and Memberships

  • Ontario Trial Lawyer’s Association, Co-founder, 1991 to 1991
  • Ontario Trial Association, Director and Vice-President


  • Special Considerations in Handling Complex Brain Injury Clients: Advancing or Defending The Brain Injury Case
    Presented by Osgoode Hall Law School
    April 2015
  • The Short Course on Fibromyalgia and Chronic Pain Claims — Panel Speaker: Building the Case
    Presented by Osgoode Hall Law School
    November 2014
  • The Osgoode Short Course in Mediation Advocacy — Panel Speaker: Mediation Advocacy II
    Presented by Osgoode Hall Law School
    September 2014
  • Tricks of the Trade Conference Presenter
    Presented by The Advocates’ Society
  • Moderator of Panel of Doctors (Dr. Moran and Dr. Barry etc.) Topic: Chronic Pain
    Presented by the Ontario Trial Lawyers Association
    Fall Conference 2011
  • Jury Trial Practice from A to Verdict, topic: Surveillance — A New Lawyers Division Primer
    Presented by the Ontario Trial Lawyers Association at the Fall Conference
    September 24, 2010
  • Damages Assessment: The Times they are a Changing — Panel Speaker: Special Lectures on Personal Injury Law
    Presented by The Law Society of Upper Canada
    April 2008
  • New Cases You Need to Know — The Liability Toolbox II
    Presented by Ontario Trial Lawyers Association
    May 2008
  • Damages Assessment Panel
    Insurance Law Seminar presented by Dutton Brock LLP
    January 2008
  • Does Private Mediation Add Value to the MVA Litigation Process?
    Panel Speaker: Advanced Forum on Motor Vehicle Accident Litigation, Latest Development & Trends in Advancing & Defending First Party and Liability Claims
    Presented by The Canadian Institute
    September 2007
  • How to Deal with Harmful Clinical Notes & Records and Use them to Build Your Case
    Presented by Ontario Trial Lawyers Association
    May 2007
  • Retaining Experts: When, Who and How
    Presented by Ontario Trial Lawyers Association: Young Lawyers Division
    March 2007
  • Special Litigation Skills Certificate Program: Jury Advocacy — Panel Speaker: When Counsel Should Open & Use of Exhibits/Demonstrative Aids in Opening
    Presented by the Advocates Society
    April 2006
  • Client Management Tips
    Presented by the Ontario Bar Association
    February 2006