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Get to Know the Partners

Anna O’Connor

Anna Gonis O’Connor is a founding member and managing partner with the Third Coast Lawyers who has litigated more than 50 jury trials over the course of her career. As an advocate for those in need, Anna focuses her practice on general litigation, real estate, personal injury, nursing home, family law and toxic tort matters. She has extensive experience in all phases of litigation involving disputes in state, federal and multi-district proceedings.

In addition to Anna’s significant trial experience, she is an accredited Cook County arbitrator. This work provides a valuable perspective to her legal practice. In all of her representations, she works to obtain favorable solutions that meet her clients’ legal objectives.

In her prior practice as an Assistant State’s Attorney in the Complex Litigation Section of the Civil Actions Bureau, Anna handled a diverse caseload including federal civil rights litigation, reverse conviction cases, medical malpractice and tort cases. In February 2016, she successfully tried a federal class action jury trial with a finding of “not guilty” in favor of her client. Leonicio Elizarri v. The Sheriff of Cook County, 07 C 2427, (N.D. Ill., Gottschall).

In 2017, she drafted and argued a motion to dismiss the Cook County State’s Attorney’s Office, two prosecutors and one guardian ad litem, arguing prosecutorial immunity from a case pending in the Northern District of Illinois. Plaintiffs alleged constitutional violations under 42 U.S.C. §§ 1983 and 1985 state tort claims. On March 16, 2018, Judge Kokoras granted her motion in its entirety. Nicole Dickman, et al. v. Office of the State’s Attorney of Cook County, et al., 16 C 9448, (N.D. Ill., Kokoras).

In her prior role as defense counsel, Anna previously served as a senior member of the national coordinating counsel for several product manufacturers. In this role, she managed local counsel in the defense of her client in several jurisdictions nationwide. She determined the best defense strategy for asbestos and other personal injury and product liability claims and regularly coordinated with expert witnesses, took and defended depositions across the country, and negotiated thousands of favorable settlements.

In her previous employment in private practice, she succeeded on a motion for summary judgment on behalf of a premises client in a dram shop matter in Cook County, Illinois. The trial court’s ruling on the motion for summary judgment was appealed and ultimately decided in her client’s favor, confirming the trial court’s order. Brown v. Nitro Nightclub, Inc., 2014 IL. App (1st) 131245-U (June 30, 2014).

Anna is a passionate advocate to those in need. She was previously accredited by the Department of Veterans Affairs to assist indigent veterans with a variety of cases. She also volunteers with Chicago Volunteer Legal Services as a Guardian ad Litem, defending the best interest of minors.

A breast cancer survivor, Anna serves on the Board of Directors for the Lynn Sage Cancer Research Foundation, and is on the founding committee for the Hippocratic Cancer Research Foundation benefitting the Robert H. Lurie Comprehensive Cancer Center of Northwestern University, where she assists in the organization of fundraising efforts to find a cure for cancer and regularly mentors women facing breast cancer.

Outside of the office, Anna enjoys spending time outdoors on hikes and traveling to national parks with her husband and two young children. She is also a certified managing real estate broker.


  • The John Marshall Law School, JD, 2006
  • Lake Forest College, BA, 2002


  • Illinois
  • United States District Court for the Northern District of Illinois
  • United States District Court of Illinois — Trial Bar
  • United States District Court for the Southern District of Illinois
  • Wisconsin
  • United States District Court for the Western District of Wisconsin
  • Missouri

Community Outreach and Boards

  • Founding Committee for the Hippocratic Cancer Research Foundation via Robert H. Lurie Comprehensive Cancer Center of Northwestern University
  • Board of Directors for the Lynn Sage Breast Cancer Foundation
  • Member at Large of the Women’s’ Network of Make-a-Wish IL
  • Guardian – ad Litem with Chicago Volunteer Legal Services
  • Member of the Chicago Bar Association