Colleen K. O'Brien: Lawyer with Semmes, Bowen & Semmes A Professional Corporation

Colleen K. O'Brien


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Experience & Credentials

Practice Areas

  • Business Litigation
  • Eminent Domain & Condemnation Proceedings
  • Life & Health Insurance & ERISA Claims
  • Litigation
  • Maritime
  • Products Liability
  • Toxic Torts & Environmental
  • Transportation
University University of Delaware, B.A. in English, cum laude, 2003
Law SchoolUniversity of Baltimore School of Law, J.D., magna cum laude, 2011 Heuisler Honor Society
Admitted2011, Maryland; 2013, U.S. Court of Appeals for the Fourth Circuit; 2012, U.S. District Court for the District of Maryland

Affiliations, Associations & Special Achievements

•Maryland State Bar Association
•Maryland Defense Council (MDC)
•Treasurer of MDC's PAC (Political Action Committee) (2014 to Present)
•Chair, Programs and Membership Committee (2015 to Present)
•DRI (Defense Research Institute)
•Women in the Law Committee
•Faculty Coordinator and Speaker Liaison (2013 Seminar)
•Life, Health, Disability and ERISA Committee
•Paper: Beneficiary Designations-Show Me the Money!! : Presented at the Life, Health, Disability & ERISA Claims Seminar in Chicago, IL (April 25, 2012)
• Use of Surveillance of Employees in Arbitration : Presented at the Maryland Public Employees Labor Relations Association (MDPELRA) Annual Conference (June 4, 2012)


Colleen K. O'Brien is an associate in the Firm's Litigation Department. Her practice generally focuses on civil defense litigation in the areas of commercial disputes, medical device litigation, insurance defense, products liability, negligence based torts, premises liability, business litigation, and life, health and ERISA claims. She has served as national counsel to a corporation defending toxic tort litigation in multiple jurisdictions throughout the country. Colleen also counsels companies on employment disputes, regulatory compliance, and corporate matters, as well as assisting in the drafting and negotiation of contracts. Additionally, she assists companies with monitoring their brands and products, and policing infringement on their intellectual property in the marketplace. Prior to joining the firm as an associate, she was a Summer Associate and Law Clerk with the firm.


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In Bed Bug Case, Court Denied Defendants’ Motion to Dismiss Plaintiffs’ Fraud, Consumer Protection, and Punitive Damages Claims for Failure to State a Claim
Colleen K. O'Brien, August 26, 2015
Myles v. Rent-A-Center, Inc., U.S.D.C. D. Md. Civ. No. JKB-15-300 (July 7, 2015), involved the sufficiency of Plaintiffs’ consumer protection, fraud, and punitive damage claims against the Defendants in a bed bug case on Defendants’ Motion to Dismiss for failure to state a claim...

Employment-Related Damages for Oppressed Minority Shareholder Are Unlikely Unless Oppressive Conduct Involved a Breach of Employment Agreement
Colleen K. O'Brien, August 19, 2015
At the trial court level, Plaintiff, a minority shareholder and former employee of the corporation, proved that he had been oppressed by Defendant, Mr. Lare, whose shares together with those owned by his wife, Defendant, Mrs. Lare, were the majority interest in the corporation. While the trial...

Rooker-Feldman Doctrine Requires Remand of Part of Plaintiff’s Class Action Complaint, but Remaining Counts Will Remain in Federal Court
Colleen K. O'Brien, July 14, 2015
Murray v. Midland Funding, LLC, Civ. No. JKB-15-0532 (June 23, 2015), was removed from State to Federal court under the Class Action Fairness Act (“CAFA”), codified at 28 U.S.C. § 1332(d) and § 1453. The Plaintiff filed a Motion to Remand, which was granted in part and denied...

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Office Information

Colleen K. O'Brien

25 S. Charles Street, Suite 1400
BaltimoreMD 21201


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