Greg is a self-professed tax nerd, and proud of it. As the owner of Vet CPA Professional Corporation, he has dedicated his career to helping veterinarians navigate the complex world of accounting and tax planning. With clients across Canada, Greg specializes in solving business and tax challenges for veterinarians, their practices, and their families.

Vet CPA Professional Corporation is a firm that focuses exclusively on the needs of the veterinary community, offering comprehensive services tailored to every stage of a veterinarian's career. From new graduates starting their journey to established practices seeking to optimize their finances, and even those planning for a successful exit, Greg and his team are there every step of the way.

Their services range from cloud-based bookkeeping to high-level tax planning, ensuring that veterinarians can focus on their passion for animal care while leaving the financial details in capable hands. Whether supporting locum vets, startups, or thriving practices, Greg’s extensive experience and deep understanding of the veterinary field have made him a trusted advisor.

Through personalized attention and innovative solutions, Greg and Vet CPA are proud to support the veterinary community, helping practitioners achieve both their professional and personal financial goals.

Darren Osborne is the Director of Economic Research for the Ontario Veterinary Medical Association (OVMA) and Economic Consultant for the Veterinary Hospital Managers Association, and Canadian Veterinary Medical Association. Darren conducts economic research and analyses data in order to provide thousands of veterinarians with Fee Guides, Economic Reports, Personal Benchmark Reports, Reports on Compensation and Benefits for Associate Veterinarians and Non-DVM Wage Reports.  More recently, Darren is creating study groups  - collaborative forums where veterinarians and practice managers come together to share insights, tackle challenges, and collectively drive success.  Darren attended York University and completed his Master's Degree in Economics in 1992.  When he is not crunching numbers, you can find Darren playing rhythm guitar and vocals in a very mediocre 80’s cover band.

Aaron Massecar, MA, Ph.D., MBA, is the Vice President of Partnerships at CoVet. After completing his Ph.D. in philosophy at the University of Guelph in 2011 and then teaching for 5 years, Dr. Massecar transitioned to veterinary medicine where he believed he could have a greater impact than what could be done in academic philosophy. His first work in veterinary medicine was with Texas A&M where he helped to build the Veterinary Entrepreneurship Academy and the Veterinary Innovation Summit. He later started working on telemedicine with the Veterinary Innovation Council in 2017. While at VIC, he helped to build educational programs for the North American Veterinary Community and later became the Senior Vice President of Learning at the NAVC. He also held senior executive positions with Colorado State University’s Translational Medicine Institute and the Veterinary Emergency Group. Now at CoVet, Dr. Massecar focuses on building partnerships that drive innovation and adoption of AI-powered solutions across veterinary medicine. He recently completed his MBA with a focus on organizational strategy. Aaron and his wife live in Colorado with their two dogs and two cats. 

Dr. Kemba L. Marshall earned her Doctor of Veterinary Medicine degree from the University of Florida in 1999.  After a one-year internship she completed a residency in Avian and Exotic Animal Medicine at the University of Tennessee College of Veterinary Medicine.  Dr. Marshall earned her Master’s in Public Health degree from the University of Iowa in 2018 and is a boarded Avian specialist of the American Board of Veterinary Practitioners.   

Kemba spent five years in private, emergency and lab animal medicine in Dallas TX after completing her residency.  She has authored peer-review journal articles and served as Guest Editor for publications including the Journal of Avian Medicine and Surgery, 5 Minute Veterinary Clinics and the Veterinary Clinics of North America. 

Dr. Marshall focuses on one health, the intersection of animal, human and environmental health. As Director of Veterinary Services Dr. Marshall oversees the health and wellbeing of all animals on the 1700- acre Land O’Lakes Purina Animal Nutrition Center complex and serves as Institutional Animal Care and Use Committee (IACUC) Officer.   

Kemba embarked on her latest venture in 2020 when she founded Marshall Recruiting Consortium to address the lack of diversity in agriculture and animal health sciences. 

Heather Loenser, DVM is the Chief Veterinary Officer at Suveto, where she helps hospital teams turn clinical excellence into exceptional client experiences and thriving workplace cultures. A proud Canadian and former Chief Medical Officer and Board Member for AAHA, she draws on years in GP and ER practice to coach leaders in data-driven, emotionally intelligent communication. 

An international speaker and frequent national television guest, Heather is known for her engaging, story-driven teaching style that empowers veterinary professionals to lead with both clarity and compassion. As a FRANK Communication Coach with Colorado State University, she equips practice leaders with practical communication tools that make them more effective, empathetic, and fulfilled—creating teams that perform better and feel better.