Atty. Mary Sum

Atty. Mary Sum

Mary Sum is a lawyer practicing corporate law. Mary has been licensed for 19 years.

19 yrs experience 19 year
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Corporate Law Attorney · 19+ Years Experience

Profile Summary

About Mary Sum at a Glance

Mary Sum is a business attorney. They have 19+ years of legal experience, licensed to practice since 2007. Admitted to practice in Ontario (2007). Educated at University of Ottawa (LL.B., 2006).

Verified attorney profile · Updated October 2026

About Mary Sum

  • Mary Sum is a lawyer practicing corporate law
  • Mary has been licensed for 19 years
  • Mary practices in Toronto, ON

Practice Areas Explained

Mary Sum's Areas of Legal Practice

Each practice area below reflects the types of cases Mary Sum handles, with a practical overview of what that area of law involves and how it may apply to your situation.

Business & Corporate Law

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

Mary Sum is one of 497,491 business attorneys indexed nationally. Browse business attorneys →

Frequently Asked

Common Questions About Mary Sum

What practice areas does Mary Sum handle?
Mary Sum focuses on business. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has Mary Sum practiced law?
Mary Sum has 19+ years of legal experience and has been licensed since 2007.
Where did Mary Sum go to law school?
Mary Sum earned their education at (LL.B., 2006).
How can I contact Mary Sum for a consultation?
You can contact Mary Sum 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.

Professional Profile

Why Clients in Your Area Choose Mary Sum

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mary Sum's practice in the field of business.

Decade-Tested Legal Experience

Mary Sum brings 19+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Focused Business Practice

Concentrating on business means Mary Sum's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.

Search Reference

How People Find Mary Sum Online

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mary Sum directly.

Mary Sum's Practice Areas & Specializations

Education & Law School Background

LL.B.
University of Ottawa
- 2006

Bar Admissions & Licensed Jurisdictions

Ontario
Admitted: 2007

Client Reviews & Ratings — Mary Sum

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