About Husseini Edward LLP

Mark K. Lathem, Barrister, Solicitor and Notary Public, has practised law in Richmond Hill, Ontario since 1994. Before opening the practice, Lathem spent more than a decade at commercial law firms in Toronto's Financial District, working in commercial real estate and business law. The firm draws on more than 30 years of legal experience and on a family background in engineering, construction, land development, and business, a combination that shapes its focus on real estate and development files rather than a general practice.

The firm's work spans commercial real estate, residential real estate, commercial lending and finance, land development, corporate and business law, and wills and estates. It regularly advises on commercial real estate and financing transactions valued from about $5 million to more than $100 million, acting for Canadian financial institutions, developers, corporations, entrepreneurs, and private investors, alongside individual clients buying, selling, or refinancing a home. The office is at 1595 16th Avenue in Richmond Hill, and the firm describes itself as serving Richmond Hill and the wider Greater Toronto Area.

Good to know

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

Offices 2

302 Bay Street, Suite 427, Toronto, ON M5H 0B6

1595 16th Avenue, Suite 301, Richmond Hill, ON L4B 3N9

The neighbourhood

The firm's office sits in a Class A office building at 1595 16th Avenue in Richmond Hill, close to Highway 404, with a bus stop in front of the building. For a practice built around commercial real estate, financing, and land development work, that highway access is useful. It puts the office within reach of developers, lenders, and corporate clients travelling from across York Region and the wider Greater Toronto Area, not only from Richmond Hill itself. It's also a different kind of location than a litigation firm would need. Most of the work here happens at closing tables and in negotiated deals rather than in a courtroom, since the firm's practice areas don't include litigation.

Frequently asked questions

Can Mark K. Lathem help me buy or sell a home in Richmond Hill?
Yes. The firm's residential real estate work covers purchases, sales, refinancing, title transfers, and private mortgage transactions for clients in Richmond Hill and the wider Greater Toronto Area.
Does the firm act for developers and lenders on larger commercial deals?
Yes. It regularly advises on commercial real estate and financing transactions valued from about $5 million to more than $100 million, acting for Canadian financial institutions, developers, corporations, entrepreneurs, and private investors on acquisitions, sales, leasing, and financing.
Can the firm help with a land development or joint venture deal?
Yes. Land development work includes development land acquisitions, builder transactions, development financing, and joint ventures.
Does the firm handle business incorporations and share sales?
Yes. Corporate and business law work includes incorporations, shareholder agreements, business purchases and sales, reorganizations, and commercial contracts.
Can the firm prepare my will and power of attorney?
Yes. The firm's wills and estates work covers wills, powers of attorney, estate administration, and estate-related real estate matters.
How long has Mark K. Lathem been practising in Richmond Hill?
Since 1994. Mark K. Lathem, a Barrister, Solicitor and Notary Public, brings more than 30 years of legal experience to the practice, including more than a decade at commercial law firms in Toronto's Financial District before opening the Richmond Hill office.

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