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Atty. J. Mark DesLauriers

Atty. J. Mark DesLauriers

J. Mark DesLauriers is a lawyer practicing corporate finance and securities, mergers and acquisitions, u.s./cross-border.

43 yrs experience 43 year
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Profile Summary

About J. Mark DesLauriers at a glance

J. Mark DesLauriers is a Partner, practicing at Osler, Hoskin & Harcourt LLP. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on business, m&a, and international. Admitted to practice in Ontario (1983). Educated at Osgoode Hall (LL.B., 1981) and Queen's University (B.Comm., 1978). Recognitions include AV Preeminent.

Verified attorney profile · Updated June 2026

About

  • J. Mark DesLauriers is a lawyer practicing corporate finance and securities, mergers and acquisitions, u.s./cross-border
  • J. Mark received a degree from Queen's University in 1978, and has been licensed for 43 years
  • J. Mark practices at Osler, Hoskin & Harcourt LLP in Toronto, ON

Practice Areas Explained

J. Mark DesLauriers's Areas of Practice

Each practice area below reflects the types of cases J. Mark DesLauriers handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

J. Mark DesLauriers is one of 501,317 business attorneys indexed nationally. Browse business attorneys →

Mergers & Acquisitions

J. Mark DesLauriers is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

J. Mark DesLauriers is one of 40,133 international attorneys indexed nationally. Browse international attorneys →

Frequently Asked

Common questions about J. Mark DesLauriers

What practice areas does J. Mark DesLauriers handle?
J. Mark DesLauriers focuses on business, m&a, international. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has J. Mark DesLauriers practiced law?
J. Mark DesLauriers has 43+ years of legal experience and has been licensed since 1983.
Where did J. Mark DesLauriers go to law school?
J. Mark DesLauriers earned their education at (LL.B., 1981); (B.Comm., 1978).
How can I contact J. Mark DesLauriers for a consultation?
You can contact J. Mark DesLauriers directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has J. Mark DesLauriers received?
J. Mark DesLauriers's notable recognition includes: AV Preeminent.

Education

LL.B.
Osgoode Hall
- 1981
B.Comm.
Queen's University
- 1978

Awards

AV Preeminent

Bar Admissions

Ontario
Admitted: 1983

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