Bio

Ms. O’Brien has dedicated her legal practice for over a decade to representing and advocating for children that have been poisoned by lead-based paint.

Born in Baltimore, Maryland, Ms. O’Brien attended Loyola University Maryland and received a Bachelor of Business Administration degree, summa cum laude, with a major in economics and minor in mathematics in 2004. She attended the University of Maryland School of Law and received a Juris Doctor degree, cum laude, in 2007. After graduation, Ms. O’Brien served as judicial law clerk to the Honorable Stephen M. Waldron in the Circuit Court for Harford County.

Ms. O’Brien has successfully represented hundreds of individuals injured through the negligence of owners and operators of residential properties in Baltimore City and the surrounding areas. She has also represented clients at the appellate level.

Over the years, Ms. O’Brien has litigated numerous cases and obtained millions of dollars for her clients. With the team at Evan K. Thalenberg, P.A., she has successfully tried multiple cases to verdict on behalf of her clients including obtaining a verdict for over $5,000,000 on behalf of two clients. Ms. O’Brien was selected to the 2017 and 2019 Maryland Super Lawyers Rising Stars list, an honor bestowed upon only 2.5% of Maryland’s lawyers. She is also a member of the American Association for Justice, Maryland Association for Justice, Multi-Million Dollar Advocates Forum, Baltimore City Bar Association, Anne Arundel County Bar Association and the Women’s Bar Association of Maryland. Mr. O’Brien currently co-chairs the Women’s Caucus for the Maryland Association for Justice. Ms. O’Brien has been invited to speak and has presented at national lead litigation conferences over the years. Ms. O’Brien was selected by The Daily Record as a 2019 Leading Women awardee, which recognizes women age 40 or younger for the tremendous accomplishments they have made so far in their career based on professional experience, community involvement and a commitment to inspiring change.

Ms. O’Brien loves coming to work each day to achieve justice for her clients. Ms. O’Brien enjoys learning about her clients as well as staying up to date on the current legal and medical issues affecting her cases. Her compassionate yet aggressive approach to her cases allows her to obtain the best possible outcome for each client and build relationships with her clients that often continue after the case is resolved.

Ms. O’Brien is involved in several community groups and associations and was involved with Big Brothers Big Sisters of the Greater Chesapeake as a mentor for over 7 years. Ms. O’Brien serves on the Board of Directors for Community Law in Action, a non-profit organization that develops young people to be leaders and participate in the process of positive community change. She also serves on the Peer Review Committee for the Attorney Grievance Commission of Maryland.

When she is not aggressively fighting on behalf of her clients and managing the firm, she enjoys spending time with her family and friends, running, yoga and cheering on the Ravens and Orioles.

Ms. O’Brien is licensed to practice law in Maryland and the U.S. District Court for the District of Maryland.

Cara L. O’Brien

Find Featured Recipients

Attorney Acceptance Form

Attorney Login

Cara L. O’Brien

Login

Sign up for