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.

Mark R Steinhilber

CPA · Layland, Steinhilber & Associates, LLC

Burr Ridge, Illinois 60527

Mark R Steinhilber, CPA in Burr Ridge, IL

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Mark R Steinhilber, CPA in Burr Ridge · CPA Seek