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Charlene S. Seibert

Union Trust Building, Suite 700
501 Grant Street
Pittsburgh, PA 15219
(412) 803-2442
(412) 803-1188 - Fax

Charlene is a member of the Professional Liability Department, where she dedicates her practice to the defense of attorneys and other professionals. Primarily, Charlene defends attorneys in legal malpractice actions covering a wide range of practice areas, including medical and dental malpractice, real estate and title insurance, estate and probate matters, divorce and support, complex business transactions and commercial litigation. Additionally, Charlene represents attorneys sued for intentional conduct arising from their representation of a client, including claims of defamation, abuse of process and statutory claims for wrongful use of civil proceedings. In cases where a lawsuit has not yet been filed, Charlene has served in a claims avoidance capacity, including navigating through conflicts of interest that may arise through the course of a lawyer's representation and undertaking mitigation efforts to salvage underlying litigation or otherwise reduce potential damages.  As well, Charlene has assisted counsel in responding to disciplinary complaints made against them with the Pennsylvania Disciplinary Board.  She is also an active member of the Pennsylvania Bar Association Professional Liability Committee and the Allegheny County Bar Association Professional Liability Committee, where she frequently addresses prominent lawyer liability and insurance issues, and is a frequent speaker on topics of legal malpractice avoidance.

Charlene began her practice representing lawyers and other professionals in 2006, after graduating in the top 10% of her class at the University of Pittsburgh School of Law.  Through law school, Charlene served on the executive board for the Pittsburgh Tax Review as the articles editor where she ensured the accuracy of legal propositions asserted by tax professionals and improved the authors' writing techniques. Also while in law school in 2004, Charlene joined Marshall Dennehey as a law clerk and upon graduation continued with the firm in the Professional Liability Department. 

Prior to law school, in 2002 Charlene graduated from John Carroll University, magna cum laude, where she obtained her Bachelor of Arts degree in Political Science. She was inducted into Pi Sigma Alpha Political Science Honor Society and awarded the Kathy L. Barber Outstanding Scholar Award in Political Science for graduating seniors. Also during her time at John Carroll, Charlene served as an intern for the U.S. Export Assistance Center in Cleveland, Ohio, a division of the United States Department of Commerce, where she assisted small and medium-sized businesses with regulatory compliance issues and market research relating to the exportation of goods. 

Significant Representative Matters

  • Summary Judgment granted in favor of lawyer-client after successfully arguing that plaintiff would have lost his underlying case due to certain immunities and privileges contained in Pennsylvania's Mental Health Procedures Act.

  • Successfully defended an attorney in an arbitration trial arising from attorney's representation of plaintiff in child support proceedings, after arguing that plaintiff's expert be precluded from testifying at the  hearing and that plaintiff otherwise failed to establish actual loss or harm. 

  • Motion to Dismiss granted to defendant in a legal malpractice case arising from alleged improper advice provided to plaintiff in bankruptcy proceedings, resulting in plaintiff's denial of discharge. Successfully argued for the application of collateral estoppel on the basis of the bankruptcy court's prior rejection of plaintiff's reliance on the advice of counsel defense.

  • Summary judgment in defamation lawsuit against attorney representing Board of Directors following termination of employees on the basis of the "fair comment" privilege, an often under-utilized defense in Pennsylvania defamation cases.

  • Summary judgment granted in favor of lawyer-client accused of stipulating to an inferior form of DNA testing on behalf of plaintiff who was wrongfully convicted of murder, successfully arguing that the statute of limitations was triggered upon the termination of the attorney-client relationship as a matter of fact and not the date the attorney withdrew his appearance of record.

  • Summary judgment granted in favor of lawyer-client in legal malpractice case, successfully arguing that attorney served in capacity as closing agent, not lawyer, in the subject transaction.

Published Works


  • University of Pittsburgh School of Law, Pittsburgh, PA (J.D., 2006)

    Honors: cum laude
    Honors: Order of the Coif
    Honors: Herman L. Foreman Award in Labor Law 

  • John Carroll University, University Heights, OH (B.A., 2002)

    Honors: magna cum laude
    Honors: Kathy L. Barber Outstanding Scholar Award in Political Science
    Honors: Pi Sigma Alpha Political Science Honor Society
    Major:  Political Science 

Defense Digest Article June 1, 2015
Key Points: Intended third-party beneficiary theory is a limited exception to the strict privity requirement in suits for attorney legal malpractice in Pennsylvania. The Superior Court of Pennsylvania in Estate of Robert Agnew v. Ross..., Defense Digest, Vol. 21, No. 2, June 2015 Defense Digest is prepared by Marshall Dennehey Warner Coleman & Goggin to provide information on recent legal developments of interest to our readers. This publication is not intended to provide legal...
Law Alerts April 11, 2013
In this legal malpractice action, the plaintiffs set forth a claim for breach of contract arising from an underlying stock purchase agreement, wherein the plaintiffs erroneously believed, based upon attorney-defendants' advice, that the sale..., Case Law Alerts - 2nd Quarter 2013
Law Alerts April 11, 2013
In this legal malpractice action, the attorney-defendant appealed a jury verdict entered against her in favor of the plaintiff, her former client in underlying divorce and support proceedings. The plaintiff alleged that the attorney-defendant failed..., Case Law Alerts - 2nd Quarter 2013
Apr 21, 2016
Obtained summary judgment in a legal malpractice case seeking in excess of $2 million stemming from a trial court judge’s determination in underlying litigation that our lawyer-clients had waived, on behalf of their former clients, challenges...
Jun 8, 2015
Won dismissal of our lawyer-clients in a legal malpractice lawsuit arising from improper advice given in underlying bankruptcy proceedings. Our clients represented the plaintiffs, an individual and her limited liability company, in connection with...
January 4, 2016
Marshall Dennehey Warner Coleman & Goggin is pleased to announce that 14 attorneys were elected shareholders of the firm at the annual shareholders' meeting held December 8 in Philadelphia. The new shareholders, listed by office, are as follows. Philadelphia, PA:  Jason W. Bialker, member of...


  • University of Pittsburgh School of Law (J.D., cum laude, 2006)
  • John Carroll University (B.A., magna cum laude, 2002)

Bar Admissions

  • Pennsylvania, 2006
  • U.S. District Court Western District of Pennsylvania, 2006

Associations & Memberships

  • Allegheny County Bar Association
  • Allegheny County Bar Association, Lawyer Insurance Committee
  • Allegheny County Bar Association, Amicus Curiae Brief Committee
  • American Bar Association
  • Defense Research Institute
  • Pennsylvania Bar Association, Professional Liability Committee

Honors & Awards

  • Pennsylvania Super Lawyers Rising Star, 2018-2019

Year Joined Organization: 2004

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