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)
•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)
•Senior Editor, The University of Baltimore Law Review
•Regional Champion (Washington, D.C. Region), ABA's National Appellate Advocacy Competition (2010)
•President, Moot Court Board (2010-2011)
•Law Scholar, Constitutional Law (2009)
•Research Assistant, Constitutional Law (2009)



Colleen K. O'Brien is an associate in the Firm's Litigation Department. Her practice generally focuses on civil litigation in the areas of insurance defense, products liability, negligence based torts, toxic torts, business litigation, and life, health and ERISA claims. Prior to joining Semmes, Bowen & Semmes as an associate, Colleen interned for the Honorable George L. Russell III at Baltimore City Circuit Court. She was also a summer associate and law clerk with the Firm.

Affiliations, Associations & Special Achievements

• Maryland State Bar Association

• Maryland Defense Council (MDC)

• 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)

• Senior Editor, The University of Baltimore Law Review

• Regional Champion (Washington, D.C. Region), ABA's National Appellate Advocacy Competition (2010)

• President, Moot Court Board (2010-2011)

• Law Scholar, Constitutional Law (2009)

• Research Assistant, Constitutional Law (200


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Maryland Does Not Have Personal Jurisdiction Over Brazilian Company in Breach of Contract Action
Colleen K. O'Brien, October 9, 2014
In Purdue Holdings, Inc. v. BRF S.A., No. JKB-14-1007 (D. Md., September 19, 2014), the Court granted the Defendant’s Motion to Dismiss for Lack of Personal Jurisdiction, in a breach of contract case. Purdue Holdings, Inc. (“Purdue”), a wholly-owned subsidiary of an international...

District of Columbia Recognizes Economic Loss Doctrine in Negligence Case for First Time
Colleen K. O'Brien, September 19, 2014
In Aguilar v. RP MRP Washington Harbour, LLC, No. 13-CV-329 (District of Columbia Court of Appeals, September 4, 2014), and in a case of first impression, the District of Columbia high court recognized the economic loss doctrine in a negligence case. The economic loss doctrine prohibits claims of...

New Maryland Rule 1-322.2 (Requiring Certificate by Attorney of Personal Identifier Information Redaction) Is Repealed
Colleen K. O'Brien, September 10, 2014
New Maryland Rule 1-322.2 was supposed to take effect on July 1, 2014, however, due largely to rising concerns from county clerks of court, the implementation of the Rule was stayed until September 1, 2014. The Rule would have required that every pleading or paper filed in a litigated civil or...

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Office Information

Colleen K. O'Brien

25 S. Charles Street, Suite 1400
BaltimoreMD 21201


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