CGSJ - Key Persons


Aaron Seib

Job Titles:
  • Partner
  • Partner at Campbell Gunn Seib Jones
Aaron Seib, partner at Campbell Gunn Seib Jones, is an accomplished and notable lawyer in the field of Criminal law. Possessing a wealth of experience and legal knowledge, Aaron has earned an outstanding reputation for his top-notch legal services and unflinching dedication to his clients. Aaron's remarkable ability to navigate complex legal issues and his unwavering devotion to justice have earned him a significant following among clients and peers alike. Professional Experience Partner, Campbell Gunn Seib Jones, 2016-present (formerly Campbell Gunn Inness Seib Jones) Associate, Campbell Gunn Inness, 2007-2016 (formerly Campbell Gunn Inness Seib Jones) Associate, Gindin Wolson Simmonds, 2006-2007 Articling Student, Gindin Wolson Simmonds, 2005-2006

Campbell Gunn Seib Jones

Job Titles:
  • Associate
  • Articling Student
  • Articling Student, 2019 - 2020 ( Formerly Campbell Gunn Inness Seib Jones )
  • Associate, 2020 - Present ( Formerly Campbell Gunn Inness Seib Jones )

Danny Gunn

Job Titles:
  • Partner
  • Founding Partner at Campbell Gunn Seib Jones
Danny Gunn is a founding partner at Campbell Gunn Seib Jones. With decades of experience, Danny is known for his extensive involvement in the field of criminal law. Danny has represented clients in courtrooms across the country, and has a strong track record of successful outcomes in criminal cases. Danny also provides a wide range of legal services to his clients, including counsel on complex white-collar crimes, corporate investigations, and government enforcement actions. Danny's strong commitment to his clients and to the law has earned him a reputation as a top criminal defence attorney, respected by his peers and clients alike. Professional Experience Founding Partner, Campbell Gunn Seib Jones, 2007-present (formerly Campbell Gunn Inness) Associate, Gindin Wolson Simmonds, 2003-2007 Associate, Brodsky and Company, 2001-2003 Assistant Crown Attorney, Toronto North, 1998-2001 Assistant Crown Attorney, Toronto West, 1996-1998

Hayley Allardyce

Job Titles:
  • Associate
  • Associate at Campbell Gunn Seib Jones
Hayley Allardyce, a criminal law associate at Campbell Gunn Seib Jones, boasts extensive experience in practicing criminal law and representing individuals in protection order matters, as well as matters through MPI and LSAB. She represents clients in Winnipeg and Brandon and has appeared in all levels of court in Manitoba, as well as the Court of Justice and Superior Court of Justice in Ontario. She has also acted as a guest lecturer on criminal law, and has served as a board member of the Elizabeth Fry Society of Manitoba.

Kevin Warkentin

Job Titles:
  • Associate
  • Associate at Campbell Gunn Seib Jones
Kevin Warkentin is a seasoned criminal law associate at Campbell Gunn Seib Jones with diverse experience in the legal sector. He has been a valued member of the team since 2021 and is a member of the Law Society of Ontario, Criminal Lawyers' Association (Ontario), and Kenora District Law Association, and serves as a Board Member for Lake of the Woods Employment Action Project. With his dedication to his clients and commitment to excellence in the practice of law, Kevin is able to provide valuable insight and advice, ensuring that his clients receive the best possible support in their case. Professional Experience Associate, Campbell Gunn Seib Jones, 2021-present (formerly Campbell Gunn Inness Seib Jones) Staff Lawyer - Duty Counsel, Legal Aid Ontario, 2018-2021 Staff Lawyer, Northwest Community Legal Clinic, 2015-2018 Lawyer Candidate, Pro Bono Ontario, 2015

Kristen Jones

Job Titles:
  • Partner
Kristen Jones is an accomplished criminal lawyer with extensive experience handling complex cases as a partner at Campbell Gunn Seib Jones. Her wealth of knowledge and involvement in the legal community makes her a valuable asset in helping clients overcome legal challenges and navigate legal proceedings with ease in even the most difficult cases. Kristen has appeared in all levels of Court including the Supreme Court of Canada and maintains a regular practice throughout Manitoba and Northwestern Ontario. Professional Experience Partner, Campbell Gunn Seib Jones, 2023-Present (formerly Campbell Gunn Inness Seib Jones) Associate, Campbell Gunn Inness, 2013-2023 (formerly Campbell Gunn Inness Seib Jones) Articling Student, Riel Community Law Center, 2012-2013

Marc Zurbuchen

Job Titles:
  • Associate at Campbell Gunn Seib Jones
Marc Zurbuchen is a criminal law associate at Campbell Gunn Seib Jones with over ten years of experience in the legal field. He is an active member of the Criminal Defence Lawyers Association of Manitoba and the Community Legal Education Association. He works tirelessly for his clients, supporting them completely through complex matters. Additionally, Marc's passion for the outdoors and advocacy for sustainable trail systems led him to become a board member of Trails Manitoba in 2022. Professional Experience Associate, Campbell Gunn Seib Jones, 2015-present (formerly Campbell Gunn Inness Seib Jones) Associate, Rolston & Associates / McNicol Bourcier, 2014-2015 Associate, Tom Rees Law Corporation, 2013-2014 Articling Student, Riverwood Community Law Center, 2012-2013

Patrick Gutowski

Job Titles:
  • Associate
  • Associate at Campbell Gunn Seib Jones
Patrick Gutowski is a respected associate at Campbell Gunn Seib Jones, having joined the firm in 2022 as an articling student before assuming his current role. He is a member of multiple professional associations, including the Manitoba Bar Association, the Canadian Bar Association, and the Criminal Defence Lawyers Association. Patrick brings the knowledge, skills, and focus to provide unparalleled legal counsel and representation to his clients. Professional Experience Associate, Campbell Gunn Seib Jones, 2023-Present (formerly Campbell Gunn Inness Seib Jones) Articling Student, Campbell Gunn Seib Jones, 2022-2023 (formerly Campbell Gunn Inness Seib Jones)

Roberta L. Campbell

Job Titles:
  • Founding Member at Campbell Gunn Seib Jones
  • Founding Partner at Campbell Gunn Seib Jones
Roberta L. Campbell, founding member at Campbell Gunn Seib Jones, is a highly regarded practitioner in Criminal Law. With vast experience and exceptional skills, she is a proficient legal practitioner who is highly dedicated to her clients and offers tireless advocacy for their legal rights. Roberta's commitment to her profession has earned her numerous accolades and recognitions from her peers, including being appointed Queen's Counsel (now King's Counsel) in 2019. She is known for seamlessly blending her legal knowledge with effective communication, and her unwavering commitment to her profession sets her apart from the crowd. Professional Experience Founding Partner, Campbell Gunn Seib Jones, 2007-present (formerly Campbell Gunn Inness) Pinx Campbell Inness, 1998-2007 (formerly Pinx Roitenberg Campbell) Wolch Pinx Tapper Scurfield, 1995-1998 Roberta Campbell, Danny Gunn, and Sarah Inness joined together to launch a criminal law firm devoted to the intelligent, effective and energetic defence of its clients. Since then, Campbell Gunn Seib Jones has grown as a firm not only in size, but in reputation. The lawyers at CGSJ have a wide range of criminal law experience from Manitoba and across Canada. They have defended clients at every level of court, including the Supreme Court of Canada, against all degree of charges, from driving offences and shoplifting to murder and international drug trafficking conspiracies.

Robson Hall Pitblado

Job Titles:
  • Guest Lecturer
  • Scholarship

Sam Green

Job Titles:
  • Articling Student
Introducing Sam Green, B.A., J.D., an accomplished articling student at CGSJ. With her outstanding academic achievements, including the prestigious Robson Hall Pitblado Scholarship in 2021 and 2022, the D.A. Thompson Q.C. Prize in Law 2021, and the Irvin Goldman Prize for Criminal Law in 2023, Sam brings exceptional expertise and diligence to her work. Her steadfast commitment to excellence in the legal profession makes her a valuable asset to CGISJ, and a promising talent for the future.

Shira Brand

Job Titles:
  • Associate
  • Associate at Campbell Gunn Seib Jones
Shira is a criminal law associate at Campbell Gunn Seib Jones. She is a passionate advocate and prides herself on bringing a personable experience to her clients as she helps them navigate through the complex criminal justice system. Shira represents clients on both criminal and regulatory matters and has appeared before the Manitoba Provincial Court, Court of King's Bench, the License Suspension Appeal Board and MPI.