Livinston & Haynes Partner


Sonia M. Stingo, CPA, PFS 

Sonia Stingo








With over 20 years of accounting expertise, Sonia has earned the distinction of trusted advisor to companies as well as high net worth individuals. With the designation of Personal Financial Specialist added to her professional credits, she has developed unique financial strategies that provide clients with significant tax benefits.

Sonia began her accounting career in her home state of Rhode Island before joining Livingston & Haynes in 1992. Becoming a partner in 1997, her specialties are audits, tax planning and financial planning. She serves a variety of industries, including high-tech, financial services (SEC filings), real estate partnerships and non-profits.  She is licensed to practice in Massachusetts, New York and Florida.

Sonia has played a major role in the creation and operation of Livingston & Haynes Investment Advisors (LHIA).


University of Rhode Island, B.S.


Massachusetts Society of CPAs
American Institute of Certified Public Accountants


Certified Public Accountant
Personal Financial Specialist


Connect on Linked In