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Our Partners and Staff

Businesses face enough changes in their day-to-day existence - this should not extend to a revolving door of new accounting faces each year.

At Jarvis Ryan Associates, we ensure that you and your staff work with the same members of our staff on an on-going basis. Team members, including the engagement partner and staff accountant, are assigned based on client requirements. In our experience, this continuity and long-term commitment builds personal rapport, in-depth knowledge of important client issues, and greatly enhances the productivity of our clients and our staff.

R. Peter Jarvis

CPA, CA, Partner

Peter graduated from the University of Windsor in 1981 and went directly into public practice. After obtaining his designation as a Chartered Accountant in 1983, Peter left public practice to spend six years in the electrical industry in various roles ranging from branch manager to director of finance. Peter was a part-time instructor at the University of Toronto and Seneca College and has taught both accounting and management accounting. In 1989, Peter re-entered public practice. In 1996, he joined with Ray to form Jarvis Ryan Associates.

Alter ego — enjoys long lunches, card tricks or bridge, and boating.

  Email Peter

Ornella Dias

CPA, CA, Partner

Ornella joined Jarvis Ryan Associates in 2008 while in grade 11 and is planning for her retirement on June 17th of 2052. Will be a big celebration and Invites will be sent as we get closer to the date. She graduated with a Bachelor of Business Administration from York University at the Schulich School of Business in 2013 and obtained her CPA, CA designation in 2017.

Alter ego — enjoys learning and snacking.

  Email Ornella

Robin Post

CPA , CMA, Principal

Robin is a Certified Management Accountant with experience in all aspects of accounting and tax issues for the small to medium size corporation, including corporate tax planning and reorganizations together with the personal tax and financial planning needs of the entrepreneur.

Alter ego — enjoys long lunches, family, playing bridge, and travelling.

  Email Robin

Cathy Sowrey

Senior Manager

Cathy joined Jarvis Ryan Associates in May 1996 after completing the accounting program at Algonquin College. Cathy's many talents include year-end planning, and both corporate and personal tax preparation and planning.Projects with tight deadlines are Cathy's most rewarding challenges as high levels of stress keep her moving!

Alter ego — enjoys the cottage, sunny places with palm trees, family, and long lunches.

  Email Cathy

Julie Walsh


Julie joined Jarvis Ryan Associates in February 2001. She has a diploma in business accounting from Sheridan College. Julie specializes in procedural planning and enjoys new accounting challenges.

Alter ego — enjoys the family cottage, her beloved dog, and long lunches.

  Email Julie

Fred Milheiras

Staff Accountant

Fred has completed his diploma in business accounting from Sheridan College and recently graduated with a Bachelor of Business Administration from Nipissing University. Fred likes food and video games.

Alter ego — enjoys long walks on the beach and candlelight dinners (and yes The firm is also troubled that Fred is using our website to pick up girls) food.

  Email Fred

Isa Otte

CPA, CGA, Staff Accountant

After a 10 year “sabbatical” to pursue other accounting interests Isa is happy to return to Jarvis Ryan where she plans to spend the remainder of her career. She obtained her CPA, CGA designation in 2018. When not hard at work Isa can be found travelling the world with her husband and indulging her passion for food and wine.

  Email Isa

Dimuth Kulatilake

Staff Accountant

Dimuth joined Jarvis Ryan in 2022 after graduating from Humber College with a diploma in Business Accounting. He recently switched careers; after over a decade in the telecommunication industry he is delighted to be in the world of accounting. When not at work Dimuth can often be found with a book in hand, particularly non fiction or watching a Western on TV.

Alter ego — enjoys camping, the outdoors, and barbecuing.

  Email Dimuth

Lisa Cassano


Lisa joined Jarvis Ryan in the fall of 2013 after moving back to the "big city" from Collingwood. She spent many years as an executive administrator in the hospitality industry. This is a return to work, the GTA and to LIFE after spending years raising two kids.

Alter ego — enjoys family, friends, and drinking pints!

  Email Lisa

E. Ray Ryan

CPA , CA, CFP, Retired Partner

Ray joined with Peter in 1996 to form Jarvis Ryan Associates. Ray retired from the firm in 2017, and now enjoys sailing, skiing and travelling the world.

Alter ego — enjoys sailing, skiing, and travelling.

Some of our fine clients who can attest to our skills:

References available upon request.

Contact us

Professional expertise, personal service

Contact Jarvis Ryan Associates to see what we can do for you.

Call us

(905) 277-9499

Email us

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