Excellence is not an act, but a habit.

– Aristotle


Flaherty & Company, LLC is an experienced certified public accounting firm specializing in providing tax, accounting and business consulting services designed to maximize wealth creation and minimize tax and debt burdens. Our firm represents a wide range of clients from high net worth individuals and family groups to individuals unfamiliar with how best to navigate life changing personal events and from established multi-national companies to companies in their start-up phase. 

Founded in 1999, Flaherty & Company, LLC has established a reputation for being among the leaders in its field by following these guiding principles:

  • Meet and exceed client expectations by providing the highest level of business & tax counsel.
  • Develop trusting relationships with all of our clients based on integrity and a willingness to listen to our clients and communicate frequently and honestly with them.
  • Do everything possible to hire, develop and retain the best possible team.

We are a proactive firm and respond to our client’s needs in a timely and efficient manner. Our size allows us to provide all our clients with the personal attention you deserve. Employees of the firm are members of the Massachusetts Society for CPA’s and the American Institute of Certified Public Accountants (AICPA).

Susan A. Flaherty, CPA
President and Founder

Susan has more than 30 years of experience in the financial services field including 8 years as an associate with Deloitte and Touche, LLP. Susan began her career with The Shawmut Bank Corporation in their commercial lending program eventually rising to the level where she was responsible for a large client base of high net worth individuals in her role as a Personal Private Banker. During her time at Deloitte and Touche, LLP, Susan developed a level of expertise in the areas of tax matters affecting high net worth individuals, partnerships and small to mid-size corporations eventually rising to the level of manager before the founding of Flaherty & Company. Susan received her BA in Economics from Boston College and an MBA with an Accounting Specialization from Northeastern University.

Doris D. Perez
Senior Associate

Doris has been a member of the Flaherty & Company team since 2003. She is dedicated to helping our clients achieve personal and business success by creating opportunities to deliver value added services and she is involved in all aspects of the client experience from the initial engagement process to the preparation and review of tax returns and accounting services. Doris received her BA in Accounting from Merrimack and is an Enrolled Agent practicing before the Internal Revenue Service. She also has been recognized as a Tax Consultant by the National Tax Training Institute.

Michael Flaherty
Managing Director and Vice President of Business Development

Michael oversees the continued development of daily operations and practice management. Michael is also a principal in The Compass Management Group, LLC, a business consulting firm specializing in executive advisement. Prior to his role at Flaherty & Company, Michael held roles as the Chief Operating Officer for the Greater Nashua Mental Health Center, the Executive Director of Wingate at Andover, Director of Budgeting and Planning for McLean Hospital and as a Senior Financial Consultant for the Genesis Healthcare Corporation. Michael received his BA in Speech Communications from Boston College, an MBA and an MHA from Suffolk University and a Graduate Certificate in Comparative Public Health Policy from the Institute of Public Administration at Trinity University in Dublin, Ireland.

Vicki Aberle

Vicki does just about everything in the office except practice accounting. She answers the phone, schedules appointments and generally keeps the office running smoothly. Vicki has been a member of the Flaherty & Company team since 2011.