About the Firm

Mahon & Company is a progressive litigation boutique in Vancouver, British Columbia. We provide criminal defence, immigration and refugee law services to individuals and organizations. We also provide strategic advice and representation in constitutional and public interest litigation.

Dedication and expertise in the law are our top priorities. We appear in tribunals and courts across the country, including the Supreme Court of Canada. Our lawyers regularly provide public legal education, to lawyers and non-lawyers alike. We love what we do, and we are proud to serve our clients and communities. Contact us today to see how we can we assist you.


Our People

Frances Mahon

Frances Mahon is the founder and principal of Mahon & Company. She provides criminal defence, refugee and immigration law services. Frances is committed to human rights and civil liberties, and has been at the forefront of many important constitutional and public interest cases and law reform efforts since the earliest days of her career. 

Read more about Frances’ work here.

Aidan Campbell

Aidan Campbell is an associate lawyer at Mahon & Company. He provides immigration and refugee law services, focusing on immigration enforcement and family reunification.

Read more about Aidan’s work here.

Kirat Khosa

Kirat Khosa is an associate lawyer at Mahon & Company. She brings a strong social justice focus and a wealth of experience in criminal law to her practice.

Read more about Kirat’s work here.


Most recent news is displayed below. For a full listing of all posts, please click here.


Supreme Court of Canada upholds rights for detained migrants

May 10, 2019 – Today the Supreme Court of Canada upheld the right to habeas corpus for migrants, a recognition that will have a profound impact on people whose detention under the Immigration and Refugee Protection Act is lengthy and of an uncertain duration.  In Chhina v. Canada, the majority of the Court undid years of uncertainty around the availability …

Victory today for LGBTQ rights from the Supreme Court of Canada in Trinity Western University law school decision

June 15, 2018 – Frances Mahon is delighted to announce that the Supreme Court of Canada delivered a profound victory for the LGBTQ community today, confirming the Law Societies of Ontario and British Columbia’s refusal to accredit Trinity Western University’s proposed school of law. The majority of the Court held that the mandatory nature of …

Frances Mahon to testify before House of Commons human trafficking committee

May 29, 2018 – Frances Mahon will be testifying today before the House of Commons’ Standing Committee on Justice and Human Rights on behalf of Pivot Legal Society, to provide insight on how human trafficking laws are being enforced in Canada, and the importance of maintaining a distinction between human trafficking, and adult, consensual sex work. …


March 16, 2020: In light of the COVID-19 pandemic, our office is closed and our team will be working at home until further notice.

  • We are still taking new clients and can do consultations by phone or FaceTime/Skype.
  • We are regularly checking voicemail and email and will get back to you as soon as we can, so please do leave us a message.
  • We are not in the office to receive deliveries. Please contact us by phone at 604-283-1188 to arrange delivery.

Thank you for your understanding! 

Use the form below to get in touch.  Please do not send any confidential information about your case.  Information provided in response to your email is not legal advice.  You will not be considered a client until we have had the opportunity to discuss your case in detail and we have agreed to act for you, in accordance with the firm’s policies.

We are located in Vancouver’s beautiful Coal Harbour neighbourhood, a 10-minute walk from Burrard Skytrain Station.

Mailing address, phone and fax number:

Fax: 604-608-3319

Accessibility information:

  • There is a wheelchair accessible entrance with automatic doors on the north side of the lobby, and elevators to bring you to the 15th floor.
  • There are two wheelchair accessible washrooms labelled “male” and “female” on the 15th floor, but unfortunately no gender neutral washroom in the building.
  • While we aim to have a scent-reduced space, we have many people coming in and out of our office and cannot guarantee a scent-free environment.
  • We can provide American Sign Language interpretation to clients, provided that we receive a minimum of two weeks notice.
  • If you have any further questions about accessibility, kindly let us know before your meeting and we will be pleased to accommodate you.