Our Team

David A. Dattilio, CPACPA - David Dattilio of Schiffman, Dattilio & Company, P.C.

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David A. Dattilio, CPA has provided audit, tax and management advisory services to businesses and individuals in the Upper Valley for over twenty-five years. David’s years of service have allowed him to develop an intimate familiarity with client needs while acquiring the political acumen to develop programs that achieve financial and organizational objectives.

Through his career David has specialized in manufacturing organizations and areas such as ISO 9000 implementation, inventory management, cash management, tax credits, and succession planning. David focuses on proactive and personal services and is committed to the financial success of his clients. David is actively involved in coaching youth sports and scouting and is a member of both the Vermont and New Hampshire Society of Certified Public Accountants and the AICPA.

Heidi J. St. Peter, CPACPA - Heidi St. Peter of Schiffman, Dattilio & Company, P.C.

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Heidi J. St. Peter, CPA joined Schiffman, Dattilio & Company in 2005 after working for eight years in industry and with a regional CPA firm. She has a strong background in audit procedures, particularly with nonprofit and governmental organizations and is the firm’s quality control administrator. Heidi’s experience allows her to provide managerial and organizational assistance to our clients. Heidi is a member of the Vermont Society of Certified Public Accountants and the AICPA and volunteers her time to local school and community organizations.


Richelle C. Schaefer, EARichelle Schaefer of Schiffman, Dattilio & Company, P.C.

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Richelle Schaefer joined Schiffman, Dattilio & Company in 2006; she heads up our individual tax practice. She has over twenty years experience in tax return and financial statement preparation in both the private and public sectors as well as extensive bookkeeping experience. Richelle is also an Enrolled Agent and a Certified QuickBooks ProAdvisor.


Nupur SatheNupur Sathe of Schiffman, Dattilio & Company, P.C.

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Nupur joined Schiffman, Dattilio and Company in 2014. She has a Master’s degree in Accounting and is a Chartered Accountant from India. She assists in the tax and audit practice. Having passed the CISA and CPA exam in United States, she is working towards her licensing.

She lives in West Lebanon, NH with her husband and  two boys.