Overview

Marguerite S. Walsh focuses her practice on representing companies, as both plaintiffs and defendants, in matters involving protection of intellectual capital and customer relationships. A trusted litigator and advisor who provides clients with strategic and practical solutions for these critical business needs, she combines her expertise with superior client service and high-quality work to handle a wide spectrum of matters, including:

  • Litigating all aspects of cases involving trade secrets and post-employment restrictions, from the investigation stage through TRO/preliminary injunction, discovery, trial and appeal
  • Helping clients reach settlements that result in positive business outcomes
  • Counseling clients regarding the drafting, enforcement and defense of agreements containing post-employment restrictions
  • Counseling clients faced with hiring individuals with post-employment restrictions in a manner designed to minimize risk
  • Developing programs and systems that help prevent the theft of confidential information and trade secrets

Marguerite has specific experience with claims arising under the common law of many jurisdictions, as well as state-specific applications of the Uniform Trade Secrets Act. Marguerite is also well-versed in the Computer Fraud and Abuse Act and related statutes, as well as issues surrounding preservation and production of electronic evidence.

In addition to her unfair competition practice, Marguerite also regularly litigates and counsels on behalf of companies facing discrimination, retaliation and wrongful discharge claims, in both the individual and class action context, under Title VII, the Age Discrimination in Employment Act, the Americans with Disabilities Act and related statutes. She has tried age and disability discrimination, and retaliation cases to verdict and has litigated many other matters at all stages, from the initial agency charge to summary judgment to the eve of trial. She has also handled appeals of such matters.

Working with a diverse group of clients, Marguerite represents companies in the following industries:

  • Pharmaceutical
  • Manufacturing
  • Financial services
  • Health care
  • Medical devices
  • Staffing
  • Aerospace
  • Consumer and industrial products
  • Technology
  • Management consulting
  • Retail

Marguerite is a frequent speaker, particularly in the area of trade secrets and unfair competition. She was a lecturer at the National Institute for Trial Advocacy Jury Trial Program and served as a faculty member at the University of Virginia Trial Advocacy Program for two years. She also served as an adjunct professor at Villanova University teaching an undergraduate level honors seminar.

Co-chair of Littler Mendelson's Competition and Trade Secrets Practice Group, Marguerite is also a member of the Management Committee. Marguerite chairs the Legal Content Advisory Committee, is a core member of the firm's Women's Leadership Initiative and serves on the firm's Governance Committee. She also served on the Board of Directors and the Strategic Planning Committee.

Before joining Littler in 2001, Marguerite worked at other law firms as a shareholder, partner and associate.

Professional & Community Affiliations

Member

Labor and Employment and Litigation Sections

American Bar Association

Past Member, Council

Civil Litigation Section

Pennsylvania Bar Association

Past Member

Commission on Women in the Profession

Pennsylvania Bar Association

Past Member

Gender Bias Subcommittee, Pennsylvania Supreme Court Committee on Gender and Racial Bias in the Courtroom

Pennsylvania Bar Association

Past Member

Business Litigation Committee's Task Force on Discovery

American Bar Association

Member, Board of Directors

Rosemont School of the Holy Child

Former Board Member

Center for Literacy

Former Board Member

Woodlynde School

Recognition

Named, The Best Lawyers in America©

2009-2015

Named, Pennsylvania Honor Roll of Women

Named, Women to Watch

Business Philadelphia

Awarded, AV® Peer Review Rating

Martindale-Hubbell

Publications & Press

The Brave New World of Noncompete Clauses

The Legal Intelligencer

October 31, 2012

Post-Employment Restrictions and Protection of Trade Secrets in the New Economy: What You Need to Know

Employment Law Institute

2011

Litigation Over Noncompete Pacts is on the Rise

Workforce Management

2009

Defining, Protecting and Litigating Trade Secrets

A Roundtable Discussion

2008

The Top Ten Ways to Prevent The Competition From Raiding Your Key Employees

Philadelphia Business Journal

2004

The Top Ten Reasons Employers Lose Trade Secret Cases - and How to Prevent Them

Philadelphia Business Journal

2003

Discovery in a Trade Secret /Covenant Case

Corporate Legal Times / Buchanan Ingersoll White Paper Series

2000

How Your Company Can Survive a Lawsuit

Corporate Legal Times/Buchanan Ingersoll Litigation White Paper Series

1999

What is Sexual Harassment?

Course Materials - State Conference of Trial Judges

1998

The ADA for Elder Care Lawyers

Course Materials, Elder Care Law Symposium - Pennsylvania Bar Institute

1998

Discovery in a Trade Secret /Covenant Case

Corporate Legal Times Trade Secret White Paper Series

1996

ADA: The EEOC and Courts Finally Deliver Some Answers

Course Materials, The Goldfarb Institute,

1996

How to Hire Right and Fire Right Under the ADA

Buchanan Ingersoll White Paper Series

1996

Taking the Deposition of An Expert

Course Materials, American Bar Association

1993

Polygraph and Psychological Test, Employee Searches, Surveillance and Monitoring

Course Materials, Pennsylvania Bar Institute

1992

References and Employee Discipline: The Defense Perspective

Pennsylvania Bar Institute, No. 1999-2220 (pp. 44-52)

Employment Claims: Discrimination and Non-Statutory Claims

Pennsylvania Bar Institute, No. 1997-1310 (pp.1-32)

The Art of Presenting Defendant's Case-in-Chief

Pennsylvania Bar Institute, No. 1997-1297, (pp. 81-89)

Speaking Engagements

Ethical Issues for In-House Counsel

Lafayette Hill, PA

October 8, 2014

Ethical Dilemmas for Corporate Counsel

Association of Corporate Counsel, Delaware Valley (DELVACCA) Chapter, Philadelphia, PA

August 8, 2013

eDiscovery 2.0: Top 10 Tips and Trends

Philadelphia, PA

May 2, 2012

Employment Law Update for the General Practitioner

Pennsylvania Bar Institute

2003, 2006, 2011

Post-Employment Restrictions and Protection of Trade Secrets in the New Economy: What You Need to Know

Employment Law Institute

2011

Preventing Your Intellectual Capital and Customer Relationships from RIF-ing Out the Door

DELVACCA Institute

2009

Restrictive Covenants and Trade Secrets in Pennsylvania

Pennsylvania Bar Institute

2005

The Trial of an Age Discrimination Case

Pennsylvania Bar Institute

2001

Business Lawyers' Institute

Pennsylvania Bar Institute

1999

Emerging Workplace Battlefields

Pennsylvania Bar Institute

1999

Employment Law Program

State Conference of Trial Judges

1998

The ADA for Elder Care Lawyers

Elder Care Law Symposium - Pennsylvania Bar Institute

1998

Insurance Solutions for Employment Practices Liability

Pennsylvania Bar Institute

1997

The Trial of a Sexual Harassment Case

Pennsylvania Bar Institute

1997

Trade Secrets and Covenants-Not-to-Compete

Philadelphia Bar Association

1997

Trial Practice for the Plaintiff Employment Lawyer

National Employment Lawyers' Association

1997

Legal Update on Major Long-Term Care and Labor Issues

The Goldfarb Institute

1996

Education

  • J.D., University of Pennsylvania Law School, 1979
  • B.A., Villanova University, 1976 summa cum laude

Bar Admission

Pennsylvania

Courts

  • U.S. Supreme Court
  • U.S. Court of Appeals, 3rd Circuit
  • U.S. District Court, Eastern District of Pennsylvania
  • U.S. District Court, Middle District of Pennsylvania
  • U.S. District Court, Western District of Pennsylvania