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.

Adam T Castonguay

Ronald V. TrebbLeighton T. RoslynJacob Pelletier

Anuradha ThirukeswaranStephanie E. McMahon

Looking for a member of our Support Team?

Adam T Castonguay

B.A. Hons., J.D.

Partner *

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

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, property development, boundaries or access disputes, and more.

He can help you plan for the future with a well drafted Will and Estate plan, and helps trustees through the difficult task of administering an estate.

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.

Adam also represents clients in a variety of litigation matters such as shareholder disputes, breach of contract, and employment and wrongful termination claims. Wherever possible, he 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 in collaboration with everyone 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
  • Wills and Estates

* Through Professional Corporations

Ronald V. Trebb

B.Sc., LL.B.

Associate Lawyer

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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

Leighton T. Roslyn

B.A. Hons, LL.B.

Associate Lawyer

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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

Jacob Pelletier

B.A. Hons, J.D., LLL

Associate Lawyer

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Jacob is a graduate of the University of Ottawa Faculty of Law where he earned his Juris Doctor and Licentiate in Law concurrently, and Laurentian University where he obtained a Bachelor of Arts (Honours) in Law and Justice (Droit et justice). He also holds a Diploma in Police Foundations (Techniques des services policiers) from Collège Boréal.

He is a dedicated worker with years of experience in the private sector and trades predating his law studies. He is committed to mastering his various fields of practice and maintaining strong relationships with his clients.

He is a member of Serpent River First Nation and is dedicated to advancing indigenous causes.

He is a francophone and is pleased to provide services in both French and English.

Outside of law, Jacob enjoys playing music on his various instruments, and reading.

Practice Areas

  • Civil and Commercial Litigation
  • Family Law
  • Administrative Law
  • Indigenous Legal Issues

Anuradha Thirukeswaran

LL.B

Associate Lawyer

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Anu is a graduate of University of Leicester, School of Law, where she earned her Bachelors of Laws.

She is a driven individual with years of experience in the legal profession prior to her call to the Ontario Bar. She is committed to providing quality legal service to clients and deeply cares for the success of the client and team.

Anu practices civil litigation focused on real estate and property disputes, as well as estate litigation. She has a particular interest in mental health law and capacity challenges.

In her real estate practice, Anu represents clients in all types of residential transactions including purchases, sales, refinancing, and purchases of newly built homes.

Anu also assists clients in planning for the future, offering estate planning, Wills and Power of Attorney services.

She is pleased to provide services to clients in English, Tamil and Hindi

Practice Areas

  • Real Estate
  • Wills and Estates
  • Civil Litigation

Stephanie E. McMahon

BSW, MSW, JD

Associate Lawyer

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Stephanie was born and raised in Sudbury, Ontario. She obtained a Bachelor of Social Work and a Master of Social Work from Laurentian University followed by her Juris Doctor degree from the University of Moncton.

During her law studies, she worked as a social worker counselling individuals, couples and families in the private sector. Following the completion of her studies, Stephanie articled with a local civil litigation law firm.

Qualified as a social worker and lawyer, with the respective skills of both professions, Stephanie is a strong compassionate advocate who thinks critically to address her client’s legal needs.

She is dedicated to her community and proud to establish her career in Northern Ontario.

Stephanie practices civil litigation, real estate, wills and estates, as well as immigration law.

Stephanie is bilingual and is pleased to provide services in both English and French.

Practice Areas

  • Civil Litigation
  • Wills and Estates
  • Real Estate
  • Immigration Law

Our Support Team

  • Carolyn Baril
  • Wills & Estates Law Clerk
  • email
  • Donna Caldwell
  • Corporate Law Clerk
  • email
  • Catherine Drouin
  • Receptionist and Legal Assistant
  • email
  • Michelle Lefebvre
  • Real Estate and Administrative Clerk
  • email
  • Dorothy Machum
  • Chief Administrative Officer
  • email

Get in touch with us.

Our office is located at 164 Elm Street, Sudbury, ON P3C 1T7
Closed for lunch: 12:00 – 1:00 p.m.

Telephone:705.674.6441 Fax:705.673.9567