Attorneys

Evan J. Ballan

Evan J. Ballan is an associate in Lieff Cabraser’s San Francisco office.

Kathleen M. Konopka

Kathleen M. Konopka is an Of Counsel attorney in Lieff Cabraser’s New York office who works on Antitrust, Commercial Litigation, and Intellectual Property matters. She has a wealth of experience in the litigation of healthcare and fraud cases.

Prior to joining Lieff Cabraser, Kate worked in the New York State Attorney General’s office, where she served as Senior Enforcement Counsel of the Social Justice Division, supervising six bureaus of the NY AG’s office, leading the investigation and litigation of complex civil matters as well as providing advice and mentorship to other attorneys.

Konopka came to the New York AG’s office after serving six years as a Senior Litigator in the Antitrust Division of the Department of Justice in D.C., where she specialized in the investigation and litigation of complex cartel, fraud, and merger matters. At the DOJ, she regularly led large teams of attorneys, economists, and support professionals, providing briefings to division leadership, including the Assistant U.S. Attorney General, and negotiating settlements, consent decrees, and plea agreements on behalf of the United States.

A 1997 graduate of the Northeastern University School of Law, Konopka has served as lead prosecutor in over 40 antitrust and consumer fraud trials, more than 100 grand jury investigations, and more than 20 appellate matters.

Sean A. Petterson

Sean A. Petterson is an associate in Lieff Cabraser’s New York office. Prior to joining Lieff Cabraser, he did a civil litigation externship in the U.S. District Court for the Southern District of New York, and worked as an associate at Boies Schiller Flexner, LLP.

Mike Sheen

Mike Sheen is an associate in Lieff Cabraser’s San Francisco office. Before coming to Lieff Cabraser, Mike worked as a Judicial Clerk to Judge Dale A. Drozd of the U.S. District Court for the Eastern District of California and as an associate at Milbank, Tweed, Hadley & McCloy LLP in Los Angeles.

Facundo Bouzat

Facundo Bouzat is an associate in Lieff Cabraser’s San Francisco office.

Katherine McBride

Katherine McBride is an associate in Lieff Cabraser’s New York office.

Prior to joining Lieff Cabraser, Katherine was a Law Clerk to the Honorable I. Leo Glasser of the United States District Court for the Eastern District of New York. Katherine earned her law degree from Stanford Law School. While there, she was a Levin Center Public Interest Fellow and participant in the Stanford Immigrants’ Rights Clinic, the Iraqi Legal Education Initiative, and the Iraqi Refugee Assistance Project. Following graduation, she received a Ford Foundation Public Interest Fellowship to work with Human Rights First in New York.

Avery S. Halfon

Avery Halfon is an associate in Lieff Cabraser’s New York office. Prior to joining Lieff Cabraser, Avery served as a Law Clerk to Judge Jane B. Stranch of the U.S. Court of Appeals for the Sixth Circuit. Prior to his clerkship, Avery worked as a Fellow at Cohen Milstein Sellers & Toll, PLLC on litigation related to the opioid crisis, climate change, discrimination, human rights, and pension rights.

Avery graduated from Harvard Law School cum laude, where he served as the Editor-in-Chief of the Harvard Law & Policy Review, a Team Leader for the Harvard Defenders, and a member of the Alien Tort Statute litigation team with Harvard’s International Human Rights Clinic. During law school Avery worked for Senator Charles E. Schumer on the U.S. Senate Judiciary Committee, EarthRights International, and the New York State Attorney General’s Public Integrity Bureau.

Abby R. Wolf

Abby Wolf is an associate in Lieff Cabraser’s San Francisco office. Before coming to Lieff Cabraser, Abby worked as a Judicial Clerk to Judge Joseph R. Goodwin of the U.S. District Court for the Southern District of West Virginia.

Shira Tevah

Shira Tevah is an associate in Lieff Cabraser’s San Francisco office. Before coming to Lieff Cabraser, Shira worked as a Law Clerk to Chief Judge Diane P. Wood of the United States Court of Appeals for the Seventh Circuit, then as a Law Clerk to Judge Tanya S. Chutkan of the United States District Court for the District of Columbia. Prior to that, she worked as a Law Clerk for the American Civil Liberties Union of Northern California in San Francisco, as well as working for Bay Area Legal Aid in San Francisco, The Bronx Defenders in The Bronx, New York, the East Bay Community Law Center in Berkeley, California, and for the Mississippi Office of Capital Defense Counsel in Jackson, Mississippi.

Adam Gitlin

Adam is an associate in Lieff Cabraser’s San Francisco office specializing in antitrust litigation. He brings to bear his experience as a Trial Attorney in the U.S. Department of Justice’s Antitrust Division, where he focused on merger review and potential anticompetitive conduct investigations and litigation, primarily in the healthcare industry. He was the Department’s lead attorney in U.S. v. Humana Inc. and Arcadian Management Services, Inc., and several nonpublic matters. He was an integral part of the U.S. and State of Texas v. United Regional Healthcare System team, which in 2011 was the first case the Department had filed in over a decade alleging monopoly conduct under Section 2 of the Sherman Act. He was also part of several “mega-merger” cases, including the trial team in the US Airways-American Airlines merger case, which settled on the eve of trial. He received multiple Assistant Attorney General Awards of Distinction for his work.

Before coming to Lieff Cabraser, Adam worked for the Brennan Center for Justice at the New York University School of Law, as Counsel in the Center’s Voting Rights & Elections Project. There he engaged in statewide legislative advocacy campaigns to pass voting reforms, successfully lobbied election officials in four states to issue new guidance on voter intimidation in advance of the 2016 general election, and educated and interacted with the public via white papersfrequent published articles with national syndication, and numerous press, conference, and media appearances.

Adam began his legal career as a judicial clerk to Judge Noël A. Kramer of the District of Columbia Court of Appeals.