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-illinois-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

Michael R Knapstein

CPA · Fgmk, LLC

Bannockburn, Illinois 60015

Michael R Knapstein, CPA in Bannockburn, IL

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Michael R Knapstein, CPA in Bannockburn · CPA Seek