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Katie Erno

Phone: +1 202.624.2926
1001 Pennsylvania Avenue NW
Washington, DC 20004-2595

Katie Erno is a counsel in Crowell & Moring’s Labor & Employment Group. Katie represents companies in a wide range of complex commercial disputes, with a focus on employment litigation and counseling. 

Specifically, Katie litigates a variety of wage and hour claims, class actions, discrimination and harassment claims, shareholder disputes, and issues related to corporate governance. She has deep experience in all stages of litigation, from drafting and challenging complaints, fact and expert discovery, drafting and arguing discovery and dispositive motions, trial, and appeals. Her cases range from single-plaintiff disputes to class actions and complex litigation involving large liability exposure in the context of high-profile bankruptcies. Katie enjoys learning the intricacies of her clients’ businesses and tailors her litigation approach with her clients’ ultimate business objectives in mind.

On the counseling side, Katie routinely investigates and advises clients on a variety of pre-litigation employment-related issues, including wage and hour and discrimination and harassment complaints, employee discipline and termination, employment policies and practices, employee mobility, and non-competition issues. Katie works with employers to build compliant and defensible practices in the first instance so that they can avoid litigation whenever possible.

Katie graduated cum laude from New York University School of Law in 2009. She graduated cum laude from Boston College in 2004, earning her B.A. in Hispanic Studies and Communications.

Representative Matters

  • Ramirez v. Guzman Brothers, Inc. (Cal. Sup. Ct. 2015) – Successfully defeated class certification on behalf of Guzman Brothers, Inc., owner/operator of a Mexican restaurant, against wage and hour claims brought by former employee Miguel Ramirez and “others similarly situated.”
  • Successfully defended one of the largest providers of on-site auto-repair services in the San Francisco Bay Area against discrimination and related claims brought by former employee. 
  • Bettina Whyte, as Trustee for the SemGroup Litigation Trust v. PricewaterhouseCoopers LLP (Okla. Dist. Ct.)—Represented the Trustee of the SemGroup Litigation Trust in a suit brought against PricewaterhouseCoopers, LLP related to PricewaterhouseCoopers' breach of its professional and fiduciary duties that resulted in the multi-billion dollar collapse of SemGroup, a midstream oil company in Oklahoma. Plaintiff successfully remanded the case back to state court, survived a motion to dismiss, and defeated several key summary judgment motions. The case settled shortly before trial.
  • Dr. Bondi, Extraordinary Commissioner of Parmalat S.p.A. v. Grant Thornton LLP (2d Cir.)—Represented Extraordinary Commissioner of Parmalat S.p.A., the Italian dairy and food products conglomerate, in a lawsuit against various Grant Thornton entities arising out of one of the largest bankruptcies in European history. Plaintiff successfully challenged federal jurisdiction in the Second Circuit Court of Appeals, which resulted in an order vacating an adverse summary judgment decision.


  • Boston College, B.A. Hispanic studies and communications (2004) cum laude
  • New York University School of Law, J.D. (2009) cum laude


Admitted to practice: California, District of Columbia

Professional Memberships

  • Member, Women’s Bar Association of the District of Columbia 

View More

"Cal/OSHA Enforcement of the COVID-19 Emergency Temporary Standard Coming Down the Pipeline: Employers Should Be Prepared Now," Labor & Employment Law Alert - US (March 4, 2021). Contacts: Thomas P. Gies, Richard McNeil, Ira M. Saxe, Katie Erno, Suzanne E. Rode, Daniel W. Wolff
Client Alert / Newsletter
"New OSHA Guidance on COVID-19 in the Workplace," Environment & Natural Resources Law Alert (January 29, 2021). Contacts: Daniel W. Wolff, Thomas P. Gies, Katie Erno, Christine B. Hawes, Leland P. Frost
Client Alert / Newsletter
"Virginia Enacts Permanent COVID-19 Employee Health and Safety Requirements," Labor & Employment Law Alert - US (January 15, 2021). Contacts: Thomas P. Gies, Daniel W. Wolff, Katie Erno, Christine B. Hawes
Client Alert / Newsletter
"What legal challenges are presented by availability of a COVID vaccine?" Crowell & Moring Webinar (December 10, 2020). Speakers: Cheryl A. Falvey, John Fuson, Thomas P. Gies, and Katie Erno.
"What trends are emerging from the newest round of state and local COVID-related orders and what are the implications for employers?" Crowell & Moring Webinar (December 9, 2020). Presenters: Thomas F. Koegel, Kris D. Meade, Katie Erno, Rina M. Gashaw, and Amy Symonds.
"CDC Updates Its Guidance for Necessary Quarantine Period," Labor & Employment Law Alert - US (December 4, 2020). Contacts: Trina Fairley Barlow, Thomas P. Gies, Eric Su, Katie Erno, Lynn Hsieh
Client Alert / Newsletter
"New York Judge Invalidates Portions of Labor Department Rule Interpreting Paid Leave Permitted Under Federal Families First Legislation," Employee Benefit Plan Review (October 2020). Authors: Eric Su, Thomas P. Gies, Christine B. Hawes, and Katie Erno.
"Anticipating a COVID Vaccine: Considerations for Employers and Consumer Facing Businesses," Crowell & Moring Webinar (September 21, 2020). Presenters: John Fuson, Thomas P. Gies, Chalana N. Damron, and Katie Erno.
"California Enacts New COVID-19 Supplemental Paid Sick Leave Law," Labor & Employment Law Alert - US (September 15, 2020). Contacts: Trina Fairley Barlow, Thomas P. Gies, Katie Erno
Client Alert / Newsletter
"New York Judge Invalidates Portions of DOL Rule Interpreting Paid Leave Permitted Under Federal Families First Legislation," Labor & Employment Law Alert - US (August 4, 2020). Contacts: Eric Su, Thomas P. Gies, Christine B. Hawes, Katie Erno
Client Alert / Newsletter

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Crowell & Moring LLP is an international law firm with approximately 550 lawyers representing clients in litigation and arbitration, regulatory and policy, and transactional matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation, as well as its ongoing commitment to pro bono service and diversity, equity and inclusion. The firm has offices in Brussels, Doha, London, Los Angeles, New York, Orange County, San Francisco, Shanghai, and Washington, D.C.

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