Listed as a CPA in IRS public preparer records. Source: IRS PTIN FOIA extract (Feb 2026), retrieved October 23, 2026. https://www.irs.gov/pub/foia/foia-new%20york-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

Siobhan Marsh

CPA · Sheehan & Company CPA PC

Brightwaters, New York 11718

Siobhan Marsh, CPA in Brightwaters, NY

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Siobhan Marsh, CPA in Brightwaters · CPA Seek