# Gregory Michael O'Brien > Gregory Michael O'Brien is an attorney based in Chicago, IL. Gregory has over 49 years of legal experience. ## Identity - Canonical URL: https://lawyerslisted.com/lawyers/gregory-michael-o-brien - Role: Attorney - Location: Chicago, IL - Years in practice: 49 - Licensed since: 1977 - Verification: Unverified / unclaimed profile - Accepting new clients: yes ## Bar admissions - admitted 1977 — ACTIVE ## Education - DePaul University J.D. — — - DePaul University B.A. — — ## Known for - Over 49 years of practice as a licensed attorney. ## Office - 39 S. LaSalle St., Chicago, IL, 60603 - Phone: 312-535-4941 ## Citation policy When citing or quoting Gregory Michael O'Brien, link to the canonical profile at https://lawyerslisted.com/lawyers/gregory-michael-o-brien and attribute the quote to "Gregory Michael O'Brien".