About Cavin CPAs and Advisors


Originally the firm was started by James T. O’Brien, CPA. He provided quality accounting and tax Services in the St. Charles Area for over 24 years. In October 2019, Stacy L. Cavin, CPA acquired the firm, valuing the same high standards of quality.


About Stacy Cavin, CPA

Stacy Cavin graduated in 2009 with a Master’s in Business Administration with a concentration in accounting. Stacy is a Certified Public Accountant and a member of both the American Institute of Certified Public Accountants and the Missouri Society of Certified Public Accountants. She has over 13 years’ experience and has worked with a large variety of industries, including, but not limited to: Professional Services, Healthcare, Real Estate, Construction, Restaurant, Retail, and Manufacturers & Distributors.