McCay Duff LLP

I went out on my own as an independent consultant a few years ago, and was asked by my clients to incorporate. Dianna, Jennifer and their team have been a treat to work with - very knowledgeable, professional, and easy to work with. I have been very pleased with the work they have done and the advice they have provided, and I recommend them highly.

I have had the pleasure of working alongside McCay Duff, through Dianna Larkin and most recently Nicole Merriman, and have always had an excellent experience. They show a genuine concern for our mutual clients' personal and business goals that takes the advice to another level. I would highly recommend this firm, definitely one of Ottawa's finest. Keep at it!

Dr Alfred Sisto
MD, FRCPC
Community Pediatrics
Ottawa Hospital

The accountants at McCay Duff LLP have been providing me with expert advice since 1990. For taxes, personal and corporate, their experience, knowledge and skills are second to none.
I truly appreciate their advice and opinions
I highly recommend them

McCay Duff's team is a pleasure to work with. Their tax knowledge and communication skills allow my clients to feel secure that they are getting a great value for their money and excellent services. I would highly recommend them!

McCay Duff has consistently provided excellent auditing services for our Condominium Audits. No hesitation in recommending them to any Condominium Corporation.

I cannot thank McCay Duff and their team enough for filing my income tax returns for the past two years. Highly recommend!

I was introduced to McCay Duff LLP in 1988 by a colleague. Over the years I have always enjoyed great advice and service. Every time I recommend them to a client, the reviews always come back positive. Dianna Larkin is a true professional - supportive and knowledgeable - which is a wonderful combination to have at your disposal.

For over 30 years McCay Duff have provided exemplary service covering a full range of personal, professional, and corporate accounting needs. They have always dedicated complete professionalism, timeliness, expertise, and teamwork to their approach. Thank you!

I have shared several mutual clients with Dianna Larkin over many years and I have come to hold her expertise and professionalism in the highest confidence. Her personalized approach, service and commitment to her clients is unwavering and truly respected. Dianna has the experience to assist professionals in all stages of their careers and I never hesitate to recommend her services to any of my clients.