Mara Lieber

Overview

Mara Lieber represents manufacturers, distributors, businesses, and individuals from pre-litigation through appeal. Understanding that not all disputes are the same, she is skilled at identifying and addressing her client’s objectives with minimal disruption by balancing litigation risks with business goals.

Mara consistently delivers results for clients facing large-scale, multi-party litigations, including class actions and advertising disputes. Her diverse client base spans industries, including food and beverage, transportation, and telecommunications. Having appeared in multiple state and federal jurisdictions nationwide, Mara is well-versed in all procedural aspects of litigation, including venue and jurisdictional disputes, discovery, motion practice, trial/arbitration, and appeal.

In addition to her national practice, Mara has an extensive understanding of the unique procedures and rules within New York courts. She provides clients from across the country with insightful and effective representation in federal and state courts. These include the Southern District of New York (SDNY), Eastern District of New York, the Second Circuit, and New York County Supreme Court.

Career & Education

American University, B.A., cum laude, 2008
St. John's University School of Law, J.D., magna cum laude, 2014
- American University, B.A., cum laude, 2008
- St. John's University School of Law, J.D., magna cum laude, 2014
New York
U.S. District Court for the Southern District of New York
U.S. District Court for the Eastern District of New York
U.S. Bankruptcy Court for the Southern District of New York
U.S. Court of Appeals for the Second Circuit
U.S. Court of Appeals for the Sixth Circuit
- New York
- U.S. District Court for the Southern District of New York
- U.S. District Court for the Eastern District of New York
- U.S. Bankruptcy Court for the Southern District of New York
- U.S. Court of Appeals for the Second Circuit
- U.S. Court of Appeals for the Sixth Circuit

Mara's Insights

Speaking Engagement | 10.08.25

"Class Action Showdown: Are You Prepared to Defend Your Label?," 2025 Food & Beverage Legal, Compliance and Regulatory Exchange

Firm News | 8 min read | 08.21.25
The Best Lawyers in America 2026 Recognizes 49 Crowell & Moring Attorneys, One Selected as Lawyer of the Year
Firm News | 8 min read | 08.15.24
The Best Lawyers in America 2025 Recognizes 42 Crowell & Moring Attorneys, Three Selected as Lawyer of the Year
Firm News | 8 min read | 08.17.23
The Best Lawyers in America 2024 Recognizes 47 Crowell & Moring Attorneys, Two Selected as Lawyer of the Year

View All Insights

Representative Matters

Representing landlord in New York State Supreme Court in action filed by tenant seeking preliminary injunction and to enforce an unexecuted lease modification.
Representing national coal company in lawsuits brought by counties and cities around the country alleging tort violations for greenhouse emissions.
Represented Multichannel Video Programming Distributor in antitrust claim against television broadcasters.
Representing a world-leading food manufacturer in a putative class action lawsuit alleging false labeling.
Representing a parking management company in a putative class action filed in the SDNY alleging violation of the Drivers Privacy Protection Act.
Representing major automobile manufacturer in nationwide class action alleging vehicle performance defects, breach of warranty, fraud, and consumer protection claims.
Representing CSX Transportation in multidistrict litigation alleging a price-fixing conspiracy among certain providers of rail freight transportation services.
Represented large institutional investor in Texas litigation seeking to recover over $70 million in losses on certain project finance notes issued by a contractor of Petróleo Brasileiro, Inc. (Prior firm).
Represented a global financial services firm in the prosecution of hundreds of millions of dollars in indemnification claims against loan originators for the benefit of the firm’s creditors. In connection with that litigation, successfully opposed multiple motions to dismiss and transfer venue. (Prior firm).
Represented a subsidiary of the fourth-largest investment bank in the U.S. in prosecution of claims against major financial institutions and entities in their capacities as Trustees, Issuers, and/or Noteholders in connection with the termination of synthetic credit default obligations. (Prior firm).
Represented Connecticut-based contractor sued in New York court and successfully obtained dismissal of the action based on lack of personal jurisdiction. (Prior firm).