John C. O'Brien
Republican · MI
John C. O'Brien is a Republican candidate for the Michigan House of Representatives in District 85, challenging incumbent Bradley Slagh in the August 2026 primary.
Track record
Track record — General
General · 2 records
Became an IRS enrolled agent in November 2016 after passing the three-part exam, giving him unlimited rights to represent taxpayers before the IRS. Held a Michigan insurance producer license from 1985 to 2022, earned the Certified Insurance Counselor designation in 2009, was a registered securities principal from 1991 to 2000, and earned an economics degree from Grand Valley State University in 1982.
July 23, 2026
Source: obrientax.net · researched July 24, 2026
Founded O'Brien Tax Service in Hudsonville, Michigan in 2008 as an IRS-authorized electronic filing provider. It has run as a sole proprietorship since he sold his insurance agency in 2011.
July 23, 2026
Source: obrientax.net · researched July 24, 2026
Past race John C. O'Brien ran in:
- State Representative District 85 · August 4, 2026 · State House District 85; Michigan
Profile last researched July 17, 2026.