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

Robert Erwin Holtz

CPA, Attorney · Mequon Law Offices

Mequon, Wisconsin 53092

Robert Erwin Holtz, CPA, Attorney in Mequon, WI

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Robert Erwin Holtz, CPA in Mequon · CPA Seek