Alessia Petricone-Westwood


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Alessia Petricone-Westwood is an associate lawyer practicing in the areas of environmental law and environmental litigation.  

Alessia has extensive experience with all aspects of civil litigation.  Detail-oriented and with an unyielding commitment to success, Alessia Petricone-Westwood has built her reputation in litigation on a commitment to meticulous preparation in all aspects of her work. She is a natural problem solver who enjoys crafting and implementing successful legal strategies. Having developed a passion for legal research, litigation drafting and advocacy, Alessia enjoys applying her skills to help clients as well as supporting her teammates.

In her work as a litigator, Alessia crafts tailored approaches for every client whether the client is a large corporation, small business, or individual. She provides them with big-picture strategies while identifying and managing the precise details of each case. Alessia has a broad environmental litigation practice that includes contaminated land disputes, professional negligence claims, defence of environmental regulatory prosecutions, administrative appeals and hearings, and environmental insurance. Alessia regularly appears before the Ontario Superior Court of Justice, the Ontario Court of Justice, and administrative tribunals.

Advocacy comes naturally to Alessia. She has always wanted to use her skills to help others solve legal problems and she continues to do so. Alessia firmly believes that being thorough and responsive to a client’s objectives are key pillars of exceptional client service and best serve to achieve client outcomes.


  • Called to the bar of Ontario (2015)
  • J.D., (Dean's Honour List), University of Ottawa (2014)
  • M.A., Human Rights Studies, Columbia University (2011)
  • B.A. Political Science, International Development Studies History, McGill University (2008)


  • Canadian Bar Association (CBA)—member
  • Ontario Bar Association (OBA)—member
  • The Advocates' Society—member
  • Law Society of Ontario—member