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Adam Mason

Adam Mason provides practical and reasoned solutions to clients’ legal issues. He has broad experience in various areas of law as a lawyer practicing in Sudbury, Ontario, and from his time working as a judicial law clerk for the Northwest Region of the Ontario Superior Court of Justice in Thunder Bay, Ontario.

Adam graduated from Laurentian University with a Bachelor of Arts (Honours) degree in English Literature and Rhetoric, and he received his Master’s degree in English Literature from Carleton University. Before attending law school, Adam worked as an Archival Assistant at the Laurentian University Archives where he gained a wealth of insight into the diverse history of the communities in Sudbury, Ontario, and surrounding areas.

Adam received his Juris Doctor from the Bora Laskin Faculty of Law at Lakehead University in 2018. He received the Dean’s Medal as the highest-ranking student in his graduating class. He also received awards as the highest-ranking student overall in his second year of law school and as the second highest-ranking student overall in his first year. Additionally, Adam received awards for first class standing in Contract Law, Tort Law, Constitutional Law, Civil Practice, and Aboriginal Law.

Practice Areas:

  • Estate Litigation

  • Wills and Estates

  • Powers of Attorney and Guardianship Law

  • Trust Law

  • Labour and Employment

  • Corporate Law

  • Tax Appeals

  • Indigenous Legal Issues

  • Real Estate

  • Civil Litigation

Bar Admission: Ontario – September 2018


Samantha Prescott

Samantha began her legal career in Thunder Bay, Ontario, in 2016 where she worked for a mid-sized full-service law firm. Samantha has significant litigation experience at all levels of court and has successfully argued motions and trials before the Ontario Court of Justice, the Superior Court of Justice, and the Divisional Court. Samantha’s main areas of practice include family law, child protection law, real estate, wills and estates, and estate litigation. Samantha also has significant experience with various matters at the appellate level and has worked on appeals before the Superior Court of Justice, the Court of Appeal of Ontario, and the Supreme Court of Canada.

Samantha is passionate about working with children and families. She began her career in Sudbury as a teacher with the Rainbow District School Board (RDSB) where she taught French-immersion students at the primary and junior levels. She continues to supply teach with the RDSB and continues to be involved in the field of education as a long-time volunteer with the Ontario Justice Education Network (OJEN). Samantha is a panel lawyer with Legal Aid Ontario and is a member of the Family Law and Child Protection panels. Samantha also works regularly at the Family Law Information Center on Cedar Street.

Samantha obtained a Bachelor of Arts (Honours) degree, as well as a Bachelor of Education degree, from Laurentian University in Sudbury, Ontario. She completed her Juris Doctor at the Bora Laskin Faculty of Law at Lakehead University in Thunder Bay, Ontario, in 2017. 

Practice Areas:


  • Family Law

  • Child Protection/Welfare Law

  • Real Estate

  • Wills & Estates

  • Estate Planning

  • Estate Litigation

  • Appeals

Bar Admission: Ontario – January 2018

M. JAMES MASON (Retired)

M. James Mason

M. James Mason was called to the bar in 1986 and was a founding partner of the firm originating in 1990. Mr. Mason is now a senior partner in Mason Poratto-Mason LLP, with its current complement of highly trained professionals, since 2003.

Mr. Mason has litigated hundreds of personal injury cases since 1986, with a focus on personal injury, slip and falls and motor vehicle accidents. Mr. Mason also takes on commercial, estate litigation, wills and powers of attorney and real estate.

Mr. Mason takes great pleasure in battling the insurance industry and will obtain the results you are looking for!

Bachelor of Arts - Laurentian University, 1979
Commerce Diploma Business Administration - Laurentian University, 1980
Bachelor of Laws - University of Windsor, 1984
Certificate in Mediation - University of Windsor, 2008

Professional Data
Law Society of Upper Canada, 1986
Sudbury District Law Association, 1986
Member of the Canadian Bar Association
Past President and Executive of Sudbury District Law Association

Former Member of the Ontario Trial Lawyers Association

Past Member of the Canadian Bar Association

Community Involvement
Past board member of Canadian Charities Foundation
Past cabinet chair for lawyers Sudbury United Way Campaign

In Addition

As well, Mr. Mason has handled cases in the Ontario Court of Justice, Superior Court of Justice, Ontario Court of Appeal and the Ontario Insurance Commission, both Mediation and Arbitration.



Lise Poratto-Mason has extensive experience in both the public and private practice of law. Her experience as a former Municipal and Hospital Solicitor and in private practice enables her to provide legal advice and services in municipal, health care, institutional and labour and employment law. Ms. Poratto-Mason also maintains an active real estate and wills and estate practice.

Bachelor of Arts - Laurentian University, 1980
Diploma in Business Administration - Laurentian University, 1981
Diploma in Public Administration and Master of Business Administration - University of Windsor, 1983
Bachelor of Laws - University of Windsor, 1986

Professional Data
Law Society of Upper Canada, 1988
Employer Nominee – Various Boards of Arbitration

Member of Sudbury & District Law Association


Canadian Bar Association – Ontario

Civil and Community Involvement
2013 to present - Past Chair and Executive Board Member of the Mason Vale Hospice Board and Ethics Committee
2013 to present - Chair and Board Member of the Greater Sudbury Airport Board
2009 to 2012 - Member Canada Pension Plan Review Tribunal
2008 to present - National Committee of the Women Moving Woman Campaign of the Canadian Women's Foundation
2007 to present - Board Member of the FedNor Ministerial Advisory Board
2004 to 2009 - Executive Member of the Sudbury & District Law Association
2004 to 2007 - Executive and Board Member of the Greater Sudbury Chamber of Commerce
2003 to 2004 - Board Member of the M.S. Society
2001 to 2003 - Board Neureka (Northern Centre for Biotechnology and Clinical Research)
2001 to 2003 - Hospital Representative on the Neureka Board, Senior Management Lead on the Hospital's Research Ethics Board and Member of its Ethics and Quality Assurance Committes
1998 to 2003 - Member, Ethics Committee; Sudbury Regional Hospital
1996 to present - Employer Nominee - Various Boards of Arbitration
1996 to 1997 - Chair, Municipal Sector, United Way
1992 to 1997 - Board Member - Laurentian Hospital
1992 to 1997 - Member, HRC Central Funding Appeals Committee, Ontario Hospital Association
1988 to present - Participating Member - Canadian Bar Association
1988 to present - Participating Member - Sudbury & District Law Association

In Addition

Ms. Poratto-Mason represents both employers and employees in labour and employment law matters in various levels of the courts and at administrative tribunals. Ms. Poratto-Mason has also been appointed as an employer nominee on various boards of arbitration. Ms. Poratto-Mason is fluent in both English and French.

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