Sherri L. Fagan, CPA

Tax Manager

Sherri joined the firm as a tax manager in 2017. Her experience includes tax return planning, preparation, and review for C corporations, S corporations, partnerships, trusts, individuals, and not-for-profits. Sherri works with clients in a variety of industries including service companies, manufacturing and distribution, private foundations and charitable trusts. She also has extensive experience in the oil & gas industry.

In addition to her client responsibilities, she is a member of Sisterson’s Energy Team.

Sherri and her husband live in Plum. She enjoys reading, walking, and spending time with her grandchildren.


  • B.S. in Accounting, Robert Morris University
  • M.S. in Taxation, Robert Morris University

Professional Affiliations

  • American Institute of Certified Public Accountants
  • Pennsylvania Institute of Certified Public Accountants
  • PIOGA (Pennsylvania Independent Oil and Gas Association) Member

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