We help Business Owners & Individuals with Legal Questions
Why choose Harper Lee Law?
Our Knowledge and Experience ensures Client-focused Assistance & Guidance
Our Calgary legal team focus on giving you frank, practical advice while addressing your concerns in the most cost-effective and efficient manner possible. When you need legal advice, we provide the right solutions at an affordable price. Our emphasis is on you.
30+ Years of Legal Experience
Our lawyers have the knowledge and experience needed to provide client-focused assistance and guidance.
We are where our clients are
Whether it's at your location, in a virtual meeting, or at our office, we make it easy for you to meet with us from anywhere.
Client-Focused Solutions
Our understanding and appreciation of your needs enable us to work as part of your team.
Efficient and Cost Effective
We are here to help you reach your goals in the most cost-effective and efficient manner possible.
Progressive and Efficient
We responsibly utilize modern technology and artificial intelligence to enhance efficiency, improve responsiveness, and allow more time to focus on strategic legal solutions for our clients.
Innovation with Purpose
At Harper Lee Law, we believe legal services should evolve alongside the needs of our clients. We embrace innovation and modern technology where it enhances the client experience, improves efficiency, and helps us deliver timely and cost-effective legal services.
As part of this commitment, Harper Lee Law may utilize artificial intelligence and other technology tools in accordance with applicable professional obligations, regulatory guidance, and our commitment to transparency. These tools assist with administrative tasks, document organization, research support, and workflow management, allowing us to focus more time on what matters most: our clients.
While technology can enhance the delivery of legal services, it does not replace professional judgment, strategic thinking, or the personal relationships that form the foundation of effective legal representation. Every matter remains subject to lawyer review, oversight, and individualized consideration.
At Harper Lee Law, innovation is not about replacing people. It is about providing better service, greater efficiency, and a more responsive client experience while maintaining the professionalism, integrity, and personal attention our clients expect.
Our Team
Harper-Lee Overli, K.C.
B.A., J.D. / Bilingual (English and French)
Managing Partner | Barrister and Solicitor
- +1 (587) 500 - 0959
- Bay 4, 823 41 Avenue N.E., Calgary, AB, Canada T2E 6Y3
- info@harperleelaw.com
About Harper-Lee Overli
Harper-Lee Overli, K.C., has practiced law since 2003 and is the Founder and Managing Partner of Harper Lee Law. Her practice encompasses corporate commercial transactions, litigation, employment law, estate litigation, insurance and insurance litigation, bankruptcy and insolvency, financial and recovery services, and Indigenous law, including land claims litigation.
Harper-Lee has considerable courtroom experience, having appeared before the Alberta Court of Justice, the Alberta Court of King’s Bench, the Alberta Court of Appeal, and the Land and Property Rights Tribunal. In addition to private practice, she has served as in-house counsel for a large municipal corporation, senior counsel for one of Canada’s largest insurance companies, and as an associate with a multinational law firm. This breadth of experience allows her to provide strategic legal advice that is both practical and business focused.
Harper-Lee is actively involved in the community. She served on the Board of Governors of the Parks Foundation Calgary, chaired its Governance Committee for more than five years, served for a decade as a director and past Vice-Chair of the Better Business Bureau of Southern Alberta and East Kootenay, teaches law and business courses as a sessional instructor at a local university, and volunteers with a number of registered Alberta societies.
In 2022, Harper-Lee was appointed King’s Counsel in recognition of her contributions to the legal profession and her commitment to excellence.
Harper-Lee believes exceptional legal representation begins with understanding each client’s objectives and building lasting relationships founded on trust, responsiveness, and practical, results-oriented advice.
Harper-Lee has considerable courtroom experience, having appeared before the Alberta Court of Justice, the Alberta Court of King’s Bench, the Alberta Court of Appeal, and the Land and Property Rights Tribunal. In addition to private practice, she has served as in-house counsel for a large municipal corporation, senior counsel for one of Canada’s largest insurance companies, and as an associate with a multinational law firm. This breadth of experience allows her to provide strategic legal advice that is both practical and business focused.
Harper-Lee is actively involved in the community. She served on the Board of Governors of the Parks Foundation Calgary, chaired its Governance Committee for more than five years, served for a decade as a director and past Vice-Chair of the Better Business Bureau of Southern Alberta and East Kootenay, teaches law and business courses as a sessional instructor at a local university, and volunteers with a number of registered Alberta societies.
In 2022, Harper-Lee was appointed King’s Counsel in recognition of her contributions to the legal profession and her commitment to excellence.
Harper-Lee believes exceptional legal representation begins with understanding each client’s objectives and building lasting relationships founded on trust, responsiveness, and practical, results-oriented advice.
Katherine Simonson
B.B.A., M.B.A., J.D., LL.M
Partner | Barrister and Solicitor
- +1 (587) 500 - 0959
- Bay 4, 823 41 Avenue N.E., Calgary, AB, Canada T2E 6Y3
- info@harperleelaw.com
About Katherine Simonson
Katherine Simonson has practiced law since 2020 and advises businesses, entrepreneurs, and individuals on corporate commercial matters and civil disputes with a practical, solutions-focused approach. Her practice focuses on corporate commercial transactions, civil litigation, defamation, regulatory law, and energy law.
Katherine has developed a diverse legal practice through experience in both private practice and in-house legal roles. She has advised domestic and international clients on corporate commercial matters and has worked collaboratively with overseas law firms to support cross-border transactions and business initiatives. Her multidisciplinary background allows her to approach legal issues with both legal and commercial insight.
Although born and raised in Calgary, Katherine brings an international perspective to her practice. She earned her Bachelor of Business Administration in Michigan, her Master of Business Administration and Juris Doctor in Florida, and her Master of Laws in England. Throughout her academic career, she competed at both the university and semi-professional levels in track and field and soccer.
Katherine is actively involved in the community. She serves as Vice-President of the Calgary Women’s Soccer Association and as a Director of the Calgary Police Youth Foundation. Her commitment to leadership, teamwork, and service reflects the values she brings to every client relationship.
In addition to her legal and community accomplishments, Katherine recently concluded an elite Hyrox career, representing Team Canada as an Elite 15 athlete and earning three World Championship appearances. She is currently pursuing her goal of representing Canada in flag football at the 2028 Olympic Games.
Katherine believes the best legal solutions are developed through collaboration, communication, and a genuine understanding of each client’s goals. She is committed to delivering practical legal advice that helps clients move forward with confidence.
Katherine has developed a diverse legal practice through experience in both private practice and in-house legal roles. She has advised domestic and international clients on corporate commercial matters and has worked collaboratively with overseas law firms to support cross-border transactions and business initiatives. Her multidisciplinary background allows her to approach legal issues with both legal and commercial insight.
Although born and raised in Calgary, Katherine brings an international perspective to her practice. She earned her Bachelor of Business Administration in Michigan, her Master of Business Administration and Juris Doctor in Florida, and her Master of Laws in England. Throughout her academic career, she competed at both the university and semi-professional levels in track and field and soccer.
Katherine is actively involved in the community. She serves as Vice-President of the Calgary Women’s Soccer Association and as a Director of the Calgary Police Youth Foundation. Her commitment to leadership, teamwork, and service reflects the values she brings to every client relationship.
In addition to her legal and community accomplishments, Katherine recently concluded an elite Hyrox career, representing Team Canada as an Elite 15 athlete and earning three World Championship appearances. She is currently pursuing her goal of representing Canada in flag football at the 2028 Olympic Games.
Katherine believes the best legal solutions are developed through collaboration, communication, and a genuine understanding of each client’s goals. She is committed to delivering practical legal advice that helps clients move forward with confidence.
Gwenn Guthrie
Assistant
- +1 (587) 500 - 0959
- Bay 4, 823 41 Avenue N.E., Calgary, AB, Canada T2E 6Y3
- info@harperleelaw.com
About Gwenn Guthrie
Gwenn Guthrie joined Harper Lee Law in 2023 and serves as the firm’s Legal Assistant. She plays an integral role in supporting the firm’s lawyers and clients, helping ensure that matters are managed efficiently and that clients receive responsive, professional service throughout their experience with the firm.
Before joining Harper Lee Law, Gwenn worked in the health care sector for more than 35 years in Scotland and later in Calgary. Her extensive professional background has equipped her with exceptional organizational skills, attention to detail, and a client-centred approach that complements the firm’s commitment to providing practical and personalized legal services.
Gwenn is known for her approachable manner, strong work ethic, and dedication to assisting both clients and colleagues. She takes pride in helping create a welcoming and supportive environment while contributing to the efficient day-to-day operation of the firm.
Outside the office, Gwenn enjoys spending time outdoors kayaking, paddleboarding, and hiking with her golden retriever, Furgus.
Gwenn believes that excellent client service begins with kindness, communication, and attention to detail. She is committed to ensuring every client feels welcomed, supported, and valued from their first interaction with Harper Lee Law.
Before joining Harper Lee Law, Gwenn worked in the health care sector for more than 35 years in Scotland and later in Calgary. Her extensive professional background has equipped her with exceptional organizational skills, attention to detail, and a client-centred approach that complements the firm’s commitment to providing practical and personalized legal services.
Gwenn is known for her approachable manner, strong work ethic, and dedication to assisting both clients and colleagues. She takes pride in helping create a welcoming and supportive environment while contributing to the efficient day-to-day operation of the firm.
Outside the office, Gwenn enjoys spending time outdoors kayaking, paddleboarding, and hiking with her golden retriever, Furgus.
Gwenn believes that excellent client service begins with kindness, communication, and attention to detail. She is committed to ensuring every client feels welcomed, supported, and valued from their first interaction with Harper Lee Law.
Client testimonials