Erin Casey Williams

Erin Casey Williams protects the interests of institutional investors and consumers through complex securities litigation. She also represents whistleblowers in qui tam cases under the False Claims Act.

Erin is a part of Motley Rice’s litigation teams representing investors in securities fraud class action cases throughout the country. She represents the firm’s clients in matters against Amazon.com, Inc., Abbott Laboratories, and Upstart Holdings, Inc.

Erin also represented financial advisors in litigation against Wells Fargo which resulted in a $79 million settlement.* The financial advisors alleged Wells Fargo forfeited their deferred compensation in violation of the Employee Retirement Income Security Act (ERISA). Additionally, Erin is involved in the firm’s qui tam practice, working with relators to bring claims on behalf of the government.

Erin assisted in the development of deposition strategies and completed discovery with the Motley Rice securities team before joining the firm in 2017. Her previous experience includes litigating claims involving medical malpractice, wrongful death, personal injury and complex family law matters at a Charleston, S.C., law firm. She also researched and drafted memoranda regarding construction defects, insurance defense, and tort liability for a national litigation support agency.

While pursuing her law degree, Erin interned for the Federal Defender Program in Chicago in addition to working as a judicial extern for the Honorable Michael T. Mason of the U.S. District Court for the Northern District of Illinois. She served as an associate editor of the University of Illinois Law Review and the Community Service Chair of the Women’s Law Society.

Awards, Accolades & Recognitions

Best Lawyers

Charleston, SC
2024-2026 Ones to Watch list: Litigation - Securities

Blog Posts

July 6, 2023

Social media’s grip on teen mental health

by: Laura K. Stemkowski

January 8, 2021

Clicking with caution: Cybersecurity data breach risks are higher than ever Causes, Not Just Cases

by: Jodi Westbrook Flowers

August 12, 2020

Denied business interruption insurance payouts due to COVID-19 losses, some business owners may find justice in civil courts Causes, Not Just Cases

by: John A. Baden IV

News

April 28, 2025

The history and legacy of Workers’ Memorial Day

by:
M. Nolan Webb

January 31, 2025

Motley Rice Whistleblower Clients Expose Securities Fraud and Are Awarded Over $6M by the SEC

by: Motley Rice