Denisa Mertiri practices in the areas of municipal law, environmental, administrative and civil litigation, and environmental law in Toronto. Clients welcome Denisa’s ability to deliver strategic, effective and practical legal advice and peace of mind compliance in the face of environmental liabilities and ever-shifting regulatory frameworks.

Denisa’s clients include provincial and municipal law agencies, private companies, individual landowners and public interest or community groups. Denisa works closely on policy drafting with municipal and provincial governments and understands the culture and inner workings of government. Years of working with corporate clients at some of Toronto’s leading law firms has given Denisa a close understanding of the needs and priorities of business. Denisa also provides ongoing assistance to non-profits and charities in refining advocacy strategies and directing them at the right decision-makers about environmental law in toronto.

Denisa was called to the Ontario Bar in 2015 and is a practitioner in good standing with the Law Society of Ontario. She is a member of the teaching team at the Lawyer as Negotiator seminar at Osgoode Hall Law School, and regularly volunteers for Pro Bono Law Ontario. Denisa is a member of the Canadian Bar Association and Ontario Bar Association.

Denisa’s articles about municipal law in Toronto have been published in Waste Today Magazine, The Advocates’ Journal, The Corporate Litigation Journal and the Canadian Class Action Review.

Green Earth Law is led by Denisa Mertiri.

Areas of Law

  • Environmental law
  • Waste management law
  • Municipal law
  • Administrative law
  • Constitutional law
  • Land use planning and development
  • Environmental approvals
  • Commercial and corporate litigation


  • Land developers and property owners
  • Municipalities
  • Conservation Authorities
  • Industrial businesses
  • Directors, officers and management teams
  • Engineering and consulting firms
  • Waste management companies
  • Individuals and community groups
  • Non-profits