Michael Joseph O'Brien

43 years of practiceLicensed in Ohio and FloridaBrennan Manna & Diamond LLC, Beachwood

43 years in practice
First admitted in 1983
  1. 1983 Admitted, Ohio
  2. 1986 Admitted, Florida

Overview

Michael Joseph O'Brien is an attorney admitted in Ohio (since 1983) and Florida (since 1986), based in Beachwood, OH.

This profile is built from public bar records and shows only what those records contain. Michael has not written or endorsed anything on this page.

Jurisdictions admitted

JurisdictionAdmittedBar numberStatus
Ohio1983#18769Active
Florida1986#586528Active

Education

  • Cleveland State UniversityLaw school, per the bar record

Contact and offices

Brennan Manna & Diamond LLC

25550 Chagrin Boulevard Ste 100
Beachwood, OH 44122

The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.

Sources for this profile: the Supreme Court of Ohio attorney directory; the Florida bar record. License status can change; check the bar's own record for the current status before hiring. Updated July 12, 2026.