About Cattanach Hindson Sutton VanVeldhuizen LLP

Cattanach Hindson Sutton VanVeldhuizen LLP is a law firm based in Markham, Ontario. According to the firm, it's provided legal services in the community for more than 90 years. J. Lachlan Cattanach, called to the bar in 1953, joined the elder Cattanach's general practice to form Cattanach and Cattanach, and later served as Markham's municipal solicitor starting in 1955, successfully arguing an annexation case before the Ontario Municipal Board that let the town expand and attract its first major industry. The firm's name still preserves earlier partners: Cattanach, Hindson, Sutton and VanVeldhuizen.

The firm now handles real estate transactions, wills and estate planning and administration, corporate and commercial matters, employment law, personal injury claims, and small claims and administrative tribunal work, including matters before the Landlord and Tenant Board and the Human Rights Tribunal of Ontario. Its lawyers were called to the bar between 1986 and 2021 and studied at schools including Queen's University, Osgoode Hall Law School and the University of Birmingham. One of the firm's lawyers has taught as an advocacy instructor at the Bar Admission Course, a Civil Litigation instructor at Humber College, and an Employment Law lecturer at Ryerson University. The firm serves both individuals and businesses, from sole proprietors to companies operating internationally.

Milestones & recognition

  • J. Lachlan Cattanach, called to the bar in 1953, joined the elder Cattanach's general practice to form Cattanach and Cattanach.
  • Cattanach served as Markham's municipal solicitor from 1955 and successfully argued an annexation case before the Ontario Municipal Board that let the town expand and attract its first major industry.
  • The firm has provided legal services in Markham for more than 90 years.

In the community

  • One of the firm's lawyers has taught as an advocacy instructor at the Bar Admission Course, a Civil Litigation instructor at Humber College, and an Employment Law lecturer at Ryerson University.

Good to know

A person using a wheelchairWheelchair accessibleA calendar with a checkmark beside a clockBy appointment

This firm’s lawyers at a glance

Called to the bar
1986–2021 · median 28 years in practice 5 of 5 lawyers
Law schools
Queen's University Law School (2), University of Birmingham, University of Kent (England) and Osgoode Hall Law School, York University, University of Ottawa Law School 5 of 5 lawyers

The neighbourhood

The firm's office is on Main Street North in Markham Village, the town's 19th century commercial core. Main Street grew into a manufacturing and merchant hub in the mid 1800s, once nicknamed the Birmingham of Ontario for its carriage makers, furniture manufacturers and blacksmiths, and the street has long held professional offices for doctors and lawyers alongside its shops. A few doors down, the ornately trimmed Wedding Cake House at 48 Main Street North still shows off the era's woodworking, a reminder of the craftsmanship that once lined this stretch of Markham.

Frequently asked questions

Does Cattanach Hindson Sutton VanVeldhuizen handle real estate closings in Markham?
Yes. The firm handles residential and commercial real estate transactions, including purchases, sales, mortgages and lines of credit, and leases.
Can the firm prepare a will and power of attorney?
Yes. The firm prepares wills and powers of attorney, handles probate applications and estate administration, and can review existing documents to see whether they need updating.
I think I was wrongfully dismissed from my job. Can this firm help?
The firm's employment law practice covers wrongful and constructive dismissal, severance package review, employment contracts, and workplace harassment and human rights complaints.
Does the firm handle personal injury claims like car accidents or slip and falls?
Yes. The firm represents clients in motor vehicle accident, slip and fall and other personal injury claims, including insurance claims and wrongful death matters.
How long has the firm been practicing in Markham?
The firm has provided legal services in Markham for more than 90 years, with roots going back to a two lawyer partnership, Cattanach and Cattanach, in the mid 20th century.
Can the firm represent me at the Landlord and Tenant Board or in a small claims matter?
Yes. The firm represents clients in Ontario Small Claims Court and before tribunals such as the Landlord and Tenant Board and the Human Rights Tribunal of Ontario.

Where to find them

52 Main Street Markham North, Markham, Ontario, L3P 1X5 · 905-294-0666

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Listing compiled from the firm’s public website in September 2026. Verify licence status in the Law Society of Ontario directory ↗