Marshall is a Certified Public Accountant (CPA) with over five years of professional experience in accounting and internal auditing, including various industries, especially with entities engaged in retail, manufacturing, distribution, professional services, and entities handling digital assets.
He earned double degrees from Far Eastern University with a Bachelor of Science in Accountancy and a Bachelor of Science in Business Administration majoring in Internal Auditing. He also earned a Diploma in Accounting and Business from the Association of Chartered Certified Accountants (ACCA).