Casey Chisick

Daniel Brown serves as a dedicated criminal defence lawyer at Daniel Brown Law LLP in Toronto, Ontario, with a strong focus on client representation and advocacy. Located near key courthouses in downtown Toronto, Daniel addresses a broad range of criminal cases, including charges like domestic assault, drug possession, impaired driving, sexual assault, and murder. Daniel Brown Law was recognized in 2025 as one of Toronto's top Criminal Law Boutiques by Canadian Lawyer Magazine, and recognized...

Jennifer Teskey is Canadian managing partner, chair of our Canadian Management Committee and a member of our Global Executive Committee. She practises in corporate and commercial litigation, with an emphasis on class actions, securities, accounting, regulatory and energy-related matters. Clients represented by Ms. Teskey include professional regulators, pharmaceutical, financial services, manufacturing, transportation, technology and energy companies. She has appeared before all levels of Ont...

Richard Butler, BSc (Hons.), MSc, LLB, is a partner at Willms & Shier Environmental Lawyers LLP. Richard practises advocacy before all levels of court and tribunals, including civil litigation, administrative appeals, and defence of environmental prosecutions. He provides advice and support to clients on all aspects of environmental law including regulatory compliance and approvals, contaminated land investigations and remediation and spills response, wastewater discharges, and waste mana...

Peter is a partner practising primarily in the areas of securities, corporate finance, mergers and acquisitions and corporate governance. Peter brings exceptional experience in the oil and gas, mining and natural resource industries, and in his practice at the firm has worked for both issuers and investment banks. Prior to joining the firm, Peter served as General Counsel to Frontera Energy Corporation (formerly Pacific Exploration & Production/Pacific Rubiales Energy), Gran Colombia Gold...

Paul Casuccio is the Leader of the firm’s Global Commodity Tax & VAT practice group. He works exclusively in this area, providing practical solutions to client’s indirect tax questions, issues, problems and structures. Paul is a sought after expert in Canada's goods and services tax and harmonized sales tax (GST/HST), provincial sales taxes, employer health tax, land transfer taxes, as well as fuel, carbon, alcohol, tobacco and other indirect taxes. Assisting clients with indi...

aul Broad is an experienced labour and employment lawyer, with a general labour and employment practice. He works with a variety of employers in both the public and private sectors in a broad range of areas including employment standards, privacy and information management, labour relations, human rights and accessibility-related issues. In addition to providing practical day-to-day advice to clients, Paul assists with complex compliance initiatives – particularly focusing on employment...

Mark Halfyard is the senior appellate lawyer at Daniel Brown Law LLP , based in Toronto, Ontario. With extensive experience in the legal field, Mark focuses on Appellate Practice and Criminal Defence. He earned his B.A. in legal studies and political science from Carleton University in 2001, graduating with honors. Mark subsequently received his LL.B. cum laude from the University of Ottawa, where he completed a clerkship with the Regional Senior Judge of the Ontario Superior Court. The Law S...

Kathleen Chevalier is a partner practising in the Employment & Labour Group and a member of the Associates Committee in the Toronto office. She advises clients on all aspects of the employment relationship in both unionized and non-unionized environments, and provides advice in respect of the employment impact of commercial transactions. Kathleen has been a leading employment law advisor at the forefront of managing the impact of COVID-19 on employers, and her expertise has been sought an...

John Ciardullo is the Managing Partner of the Toronto office where he is responsible for overseeing management, strategic direction and client service. He is also a member of the Partnership Board, Executive Committee, Management Committee and the Diversity, Equity & Inclusion Committee. He is the former Head of the Corporate Department and the Capital Markets and Public Mergers & Acquisitions Groups. John has expertise in a broad range of corporate transactions and has led some of Ca...

Paul Gibney is a partner and practices in the Toronto office of Thorsteinssons LLP. Paul’s practice focuses on personal, corporate and trust planning for high net worth individuals, family offices, executives, owner-managers and their businesses, both domestic and international, including: corporate reorganizations; estate planning; purchases and sales of businesses; immigration and emigration; non-profit organizations and charities. Paul also represents taxpayers in their dealings with...