Meet Our Team

Our team delivers high-quality and transparent legal representation devoted to achieving your best outcome.

We offer services in both official languages.

Edward J. ConroyMurray A. Scott

Adam T. CastonguaySamantha C. M. Prescott

Ronald V. TrebbLeighton T. Roslyn

Julie H. LamotheAdam G. LakeDiane M. Rioux

Looking for a member of our Support Team?

Edward J. Conroy

B.A., LL.B., J.D., D.S.L., C.S.

Founding Partner

*Certified Specialist in Civil Litigation

Ted Conroy defends criminal and quasi-criminal prosecutions and acts for plaintiffs and defendants in civil lawsuits.

Ted is the firm’s senior counsel. He graduated from the University of Toronto, in 1954 before attending Osgoode Hall. Since his call to the Bar in 1958 he has practiced from Sudbury throughout the Province of Ontario.

During his more than 50 years of practice he has represented over 15 persons accused with murder and countless numbers of persons on lessor offenses. He has special interest in crimes of violence and sexual abuse. This has led him to become knowledgeable in the use (and abuse) of firearms and edged weapons. Over the past 25 years Ted has developed novel statutory constitutional defences to alcohol-related offences such as impaired driving.

Over the course of his practice, Ted participated in several breaking civil suits. In 1988, he was awarded the continuing designation of Specialist in Civil Litigation by the Law Society of Upper Canada.

Practice Areas

  • Criminal and Civil Litigation
  • Specialist in Civil Law since 1988
  • Adjunct Professor, Laurentian University

Bar Admission: Ontario – 1958


Murray A. Scott

July 25, 1948 –

March 20, 2020

Murray Scott was called to the Ontario bar in 1977 and, as a partner of the firm, he maintained an active solicitor’s practice in real estate, business law, and estate planning until his passing on March 20, 2020.

Murray’s wealth of knowledge and experience ranged from straightforward residential and commercial transactions, to group acquisitions of leased lands and “retrofitted” subdivision involving Sudbury’s first Common Elements Condominium Corporation.

Murray’s corporate practice included formation of business and not-for-profit corporations, partnerships and joint ventures, as related restructuring, reorganization, acquisitions, and dispositions.  He acted as counsel in the Northern Ontario conversion of an international oil company, local hospital transition, and Northern Ontario distance education re-organization.  He was President of a local manufacturer of radio-remote control systems used in the mining industry.

Murray was very involved in the Sudbury community, having enjoyed a nineteen-year tenure on the Board of Directors of Northern Ontario Heritage Fund Corporation.  He chaired the Board of Governors of Cambrian College and was President of the Rotary Club of Sudbury Sunrisers.

Murray was devoted to his clients, making it a top priority to provide the highest level of service with honesty and integrity. Conroy Scott LLP wishes to thank our clients for their dedication and loyalty to Murray over the years. Murray will be remembered for his vast intellect and infectious humour.

The firm has made arrangements to ensure continuity of service to Murray’s clients.  In particular, Leighton Roslyn, who has been associated with the firm since 2001 and who has years of experience in all the areas of law that Murray engaged in, is available to Murray’s clients to ensure their legal matters are attended to.

For any questions regarding past or existing legal matters, don’t hesitate to contact the firm at 705-674-6441.

Adam T. Castonguay

B.A. Hons., J.D.



Adam is a graduate of Laurentian University where he obtained a Bachelor of Arts in Law and Justice with honours, cum laude, and the Bora Laskin Faculty of Law at Lakehead University where he earned his Juris Doctor with first class standing.  He also holds a Certificate in Construction Law from York University’s Osgoode Hall Law School Professional Development. He practices real estate and property law, construction law, civil litigation and dispute resolution as well as corporate and commercial law.

You can trust Adam to provide expert advice in real estate transactions, including those involving commercial properties and multi-family or income properties. He can also assist with refinancing, liens, disputes over boundaries or access, and more.

In his construction law practice, he represents owners, general contractors, sub-contractors and suppliers for matters ranging from construction liens to contract advice and negotiations.

In addition to construction and property disputes, Adam represents clients in a variety of litigation matters such as shareholder disputes, breach of contract, and wrongful termination claims. Wherever possible, we will explore resolutions without the need to resort to the courts.
Working with established businesses and budding entrepreneurs, Adam advises on corporate and commercial matters including incorporating and corporate reorganizing, asset and share purchasing, and commercial leasing.

Adam’s client-centric approach makes him a great addition to your team, where he will work with you and the other lawyers at Conroy Scott LLP to meet all your legal needs.

Practice Areas:

  • Real Estate Law
  • Property Law
  • Construction Law and Construction Liens
  • Civil Litigation
  • Employment Law
  • Corporate and Commercial Law

Bar Admission: Ontario – 2018

Samantha C. M. Prescott

B.A. (Hons), B. Ed., J.D.



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. Samantha was called to the Ontario Bar in January of 2018.

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, human rights 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 also a member of the Board of Directors of the Sudbury Action Center for Youth (SACY).

Practice Areas:

  • Family Law
  • Child Protection/Welfare Law
  • Human Rights Law
  • Civil Litigation
  • Real Estate
  • Wills & Estates
  • Estate Planning
  • Estate Litigation
  • Administrative Law
  • Appeals

Bar Admission: Ontario – January 2018

Ronald V. Trebb

B.Sc., LL.B.



Ronald V. Trebb is a graduate of both Laurentian University (1975) where he obtained a B.Sc (in physics), and also the University of Windsor (also 1975) where he obtained his Bachelor of Laws degree (LL.B). He was called to the Ontario Bar in 1977 and has practiced as a partner of the firm since 1978.

Ron’s present practice focuses primarily upon various aspects of corporate/commercial law. He provides services related to the incorporation, organization, re-organization, amalgamation and dissolution of corporation. He also advises his clients with respect to asset purchase and share purchase type transactions, franchising and licensing arrangements, shareholder agreements and other corporate governance issues His practice also encompasses the provision of necessary professional services to a number of Professional Corporations incorporated for physicians, dentists, barristers and solicitors and other professionals.

In addition, for the better part of 35 years Ron has been active as both a Barrister and Solicitor in all aspects of commercial and residential real estate law. As a barrister, he has been involved in numerous litigious matters between vendors and purchasers, contractors and sub-contractors, principals and agents, and builders and their customers. He has acted for both lenders and borrowers in foreclosure actions, powers of sale proceedings, and other mortgage/security enforcement proceedings. As a solicitor, he has represented clients in numerous major asset acquisitions, asset dispositions, re-financing, leasing, and property development transactions.

Ron has given special lectures at Laurentian University and Cambrian College in Sudbury. He was previously accredited and taught Real Estate Law to real estate agents seeking provincial certification through the Ontario Real Estate Association in various locations throughout Ontario.

Practice Areas

  • Corporate & Commercial Law
  • Wills & Estates
  • Real Estate

Bar Admission: Ontario – 1977

Leighton T. Roslyn

B.A. Hons, LL.B.



Leighton T. Roslyn has been associated with the firm since 2001.

He has over 40 years of experience in corporate and commercial transactions, real estate, wills & estates, powers of attorney, as well as the law related to charities and non-profit organizations.

He also has a depth of experience in litigation matters involving insurance work, contract disputes, construction liens and construction law, real estate disputes, commercial and business law disputes and general Court related issues.

Non-profit and charitable organizations are a special interest.

Practice Areas

  • Litigation General & Corporate/Commercial
  • Corporate/Commercial Transactions
  • Real Estate
  • Wills & Estates

Bar Admission: Ontario – 1979

Julie H. Lamothe

B.A.(Hons), J.D. (Can.), J.D. (U.S.)



Julie was born and raised in Sudbury, Ontario where she earned her Bachelor of Arts (Hons) Degree specializing in Law and Justice. She completed her Canadian and American Juris Doctor Degrees at the University of Windsor Faculty of Law and University of Detroit Mercy School of Law, graduating Cum Laude.

Julie completed her Articles with our team and is now primarily practicing family and child protection law.  Julie is passionate about educating individuals on their rights and helping them achieve their goals.

Throughout her law school career, Julie chaired the Sexual Assault Awareness Committee and the Mental Health Awareness Committee. In these roles, she organized school-wide events and helped provide information, self-defence training and awareness to both those in need and to the general campus population. Now, she is dedicated to assisting organizations in the Sudbury area that educate the public regarding the same.

Julie values teamwork and loyalty.

Practice Areas

  • Family Law
  • Child Protection Law
  • Civil Litigation
  • Human Rights

Bar Admission: Ontario – 2021

Adam G. Lake

B.A.(Hons), BEd., M.A., J.D.


Adam is originally from North Bay, Ontario. He obtained his undergraduate degree and Bachelor of Education from Nipissing University, and his Master’s degree from the university of Toronto. After working as a supply teacher, he attended Osgoode Hall Law School at York University in Toronto.

Adam has experience with civil litigation and criminal law, but he now primarily practices in family law.

At law school, Adam obtained many awards and distinctions, including the George M. Miller Prize for Northern Ontario, and he had legal articles published on and in the RegQuest Newsletter.

He is also a member of the Knights of Columbus.

Bar Admission: Ontario – 2020

Diane M. Rioux

B.A., LL.B.


We are pleased to announce Diane M. Rioux has rejoined our firm’s corporate/commercial group.

A graduate of Laurentian University and the University of Ottawa’s Faculty of Law, Diane also completed the Business Leadership Program for In-House Counsel offered by Rotman School of Management at the University of Toronto and is certified as In-House Counsel.

Highly intuitive and detail oriented, Diane has been involved in the legal industry since 1993 and has been a practicing solicitor in business-related fields since her call to the bar in 2010. She started her legal career with our firm before taking on the role of general counsel for a local construction and mining company in 2015.

She is experienced in corporate law, commercial transactions, business acquisitions and dispositions, financing transactions, commercial and residential real estate, industrial site development.

Diane advises clients in a wide range of corporate and commercial matters and coordinates with accounting firms to meet client needs.

Away from work, Diane enjoys gardening, general mechanics and travel. During the summer months she helps her husband on a small agricultural family farm located in Verner, Ontario. In winter, she find time for world travel. Diane is also fascinated with aviation and is a licensed private pilot.

Her memberships include:

– Canadian Bar Association
– Canadian Corporate Counsel Association
– Sudbury and District Law Association

Bar Admission: Ontario – 2010

Our Support Team

  • Michelle Lefebvre
  • Receptionist
  • email
  • Carolyn Baril
  • Wills & Estates Law Clerk
  • email
  • Donna Caldwell
  • Corporate Law Clerk
  • email
  • Michelle Lefebvre
  • Office Assistant
  • email
  • Dorothy Machum
  • Chief Administrative Officer
  • email
  • Mariam Mujtaba
  • Corporate Clerk
  • email
  • Norma Patenaude
  • Real Estate Clerk
  • email
  • Celine Tessier
  • Family Law Clerk
  • email

Get in touch with us.

Our office is located at 164 Elm Street, Sudbury, ON P3C 1T7.

Telephone:705.674.6441 Fax:705.673.9567 Toll Free: 1.800.627.1825