Maysoon Abusoud, CPA

Senior Manager, Assurance & Business Advisory Services
(567) 833-8009

Maysoon joined GBQ in 2022 with 12 years of Big 4 experience at Deloitte, where she most recently served as the Chief of Staff of the Toronto Audit and Assurance practice, designing and executing strategic practices to enhance efficiency and productivity. By leveraging Maysoon’s previous experience at Deloitte, she brings a unique perspective to GBQ’s internal processes and policies.

Maysoon has serviced several industries throughout her career, with expertise in retail, consumer business, and manufacturing. In addition to coordinating large-scale international audits across multiple reporting entities and various industries, Maysoon has experience leading single-operation, one-location audits. Additionally, she is proficient in the International Financial Reporting Standards (IFRS) and Generally Accepted Accounting Principles (GAAP) and the respective auditing standards for these frameworks.

A native of Toronto, Ontario, Canada, Maysoon graduated from the Rotman School of Business at the University of Toronto, considered Canada’s top-ranked university.


  • University of Toronto, Rotman School of Business — B.S., Commerce, Finance Specialization

Professional Associations

  • Chartered Professional Accounts of Ontario (CPA Ontario)


Professional Bio