Maggie's Bio
Maggie O’Boyle joined Cornerstone as a Controller in our D.C. office in June 2025. In this role, she manages the firm’s accounting function.
Prior to Cornerstone, Maggie was Associate Director of Financial Planning & Analysis (FP&A) at Clarest Health, a private equity-backed healthcare company. In this role, Maggie supported the firm’s budgeting, forecasting, and management reporting and analyzed the financial impacts of key business decisions.
Prior to her time at Clarest, Maggie worked as a Senior Associate in the accounting advisory group of Riveron Consulting, supporting both public and private clients with financial reporting and audit readiness. Maggie began her career in PwC’s assurance practice, primarily auditing clients in the financial services industry.
Maggie is a licensed CPA and brings nearly a decade of experience in accounting and financial planning and analysis. She holds both a Master of Accountancy and a Bachelor of Business Administration in Accounting from the University of Georgia.