About Resilient LLP

Resilient LLP is a small Toronto law firm that practices only in climate change, clean energy, and related Indigenous rights law. It was previously known as DeMarco Allan LLP. The firm has three lawyers, Senior Partner and CEO Lisa DeMarco, Partner Jonathan McGillivray, and Associate DT Vollmer, working from an office on the fifth floor of 33 Bloor Street East in downtown Toronto. Its clients include energy companies, governments, financial institutions, industry associations, Indigenous communities, and non-governmental organizations, and the firm represents them in regulatory proceedings before bodies such as the Ontario Energy Board and other provincial and federal energy regulators.

Lisa DeMarco was called to the Ontario bar in 1997 and to the bar of England and Wales in 2012, after degrees in environmental biology, environmental toxicology, and environmental law. DeMarco was a partner at Macleod Dixon LLP, then Norton Rose Canada LLP and Norton Rose Fulbright LLP, from 2002 to 2014, before becoming senior partner at what is now Resilient LLP. Jonathan McGillivray, called to the Ontario bar in 2017, joined the firm as a partner in June 2024. The firm's lawyers regularly attend United Nations climate negotiations, including the 2015 talks that produced the Paris Agreement and the Article 6 carbon market rules agreed at COP26 in Glasgow. Environmental Finance named the firm its "Best Law Firm" for GHG markets in North America in 2021.

Milestones & recognition

  • The firm previously operated as DeMarco Allan LLP before it adopted the Resilient LLP name.
  • Environmental Finance named the firm its "Best Law Firm" for GHG markets in North America in its 2021 Annual Market Rankings.
  • Lisa DeMarco has been named in The Best Lawyers in Canada for environmental law, energy regulatory law, and energy law, and ranked by Chambers Canada and Chambers Global in their environment and climate change categories.
  • DeMarco has served as a director of Toronto Hydro Corporation and the International Emissions Trading Association, and was appointed to the Ontario Premier's Climate Change Advisory Panel.
  • Jonathan McGillivray joined the firm as a partner effective June 11, 2024, after being a long standing member of the Resilient team.

In the community

  • Lisa DeMarco is an adjunct professor at Osgoode Hall Law School and a guest lecturer at other law schools.
  • DT Vollmer has given guest lectures at the University of Ottawa, Toronto Metropolitan University, the University of Western Ontario, and Osgoode Hall Law School on climate finance and corporate ESG strategy.
  • The firm publishes regular bulletins on Canadian and international climate policy and energy law developments.

Good to know

A person using a wheelchairWheelchair accessible

This firm’s lawyers at a glance

Called to the bar
1997–2020 · median 9 years in practice 3 of 3 lawyers
Law schools
Osgoode Hall Law School, Stellenbosch University, Thomson Rivers University 3 of 3 lawyers

The neighbourhood

Resilient LLP's office is on the fifth floor of 33 Bloor Street East, a 17 storey tower originally built as the Xerox Centre before the office market slowdown of the early 1990s. The building sits directly above what has been called Canada's busiest subway interchange, where the Yonge and Bloor subway lines cross, and its owner completed a $25 million renovation of the lobby and street level in 2020 that extended the Bloor Street retail strip and added a climate controlled walkway to Yonge Street.

The firm's work isn't tied to a single courthouse or local registry. Its lawyers appear before energy regulators across the country and attend United Nations climate negotiations abroad, so the Bloor and Yonge office functions as a home base in the middle of downtown Toronto's business district rather than a walk in storefront practice.

Frequently asked questions

What areas of law does Resilient LLP practice?
Resilient LLP practices only in climate change, clean energy, and related Indigenous rights law. It doesn't take on general corporate, litigation, or family law matters outside that focus.
Can Resilient LLP represent a client before the Ontario Energy Board?
Yes. The firm regularly represents clients in regulatory proceedings before the Ontario Energy Board and other provincial and federal energy regulators, including the Canada Energy Regulator.
Does Resilient LLP advise on carbon credits and carbon market transactions?
Yes. The firm advises on voluntary and compliance based carbon markets, including emissions reduction purchase agreements and offset transactions.
Does Resilient LLP help with Indigenous consultation on energy or resource projects?
Yes. The firm advises Indigenous communities, businesses, and project proponents on the duty to consult, the United Nations Declaration on the Rights of Indigenous Peoples, and free, prior and informed consent.
Can Resilient LLP help a company prepare climate related financial disclosures?
Yes. The firm advises on climate related financial disclosure requirements, including frameworks such as the TCFD and the International Sustainability Standards Board's standards.
How big is Resilient LLP and where is it located?
Resilient LLP has three lawyers and one office, on the fifth floor of 33 Bloor Street East in downtown Toronto.

Where to find them

33 Bloor Street East, 5th Floor, Toronto, Ontario M4W 3H1 · 647-991-1190

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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 ↗