LeElle B. Slifer

LeElle B. Slifer


Winston & Strawn LLP

Recognized since 2024

Dallas, Texas

Practice Areas

Commercial Litigation

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LeElle Slifer is an experienced trial lawyer who practices in Winston & Strawn LLP's Dallas office. Her clients describe her as a litigator who “provides time-critical business and strategic counsel that can make all the difference in high-stakes litigation.” With significant experience in a wide range of disputes—including complex commercial, oil and gas, antitrust, patent and copyright infringement, non-competes, theft of trade secrets, class actions, and even the seizure of cargo barges and private jets—LeElle can efficiently and strategically tackle any issue. LeElle understands that getting the best result for her clients means more than just the legal outcome, it means keeping the client’s business goals in mind every step of the way.

LeElle has litigated in federal and state courts nationwide, trying matters before both judges and juries. She has participated in numerous domestic and foreign arbitrations, including before the International Chamber of Commerce (ICC) in London. One of her trials—DDR Holdings v. Hotels.com, in which her team won a jury verdict of patent infringement in the Eastern District of Texas—was the first case to survive a Section 101 challenge at the Federal Circuit after the Supreme Court issued Alice Corp. v. CLS Bank Int’l and was the only case to do so for almost two years.

LeElle has significant experience in a wide range of disputes, including breach of contract, oil and gas, breach of fiduciary duty, antitrust claims, patent and copyright infringement, theft of trade secrets, non-competes, and others. She has handled appeals to several federal and state courts of appeal, including the Supreme Court in Comcast Corp. v. Behrend.

LeElle knows that litigation forms just one aspect of her clients’ businesses. She thinks tactically, keeping her clients’ objectives and concerns top-of-mind as she counsels them through litigation. And her clients can attest to the success of LeElle’s results-oriented approach:

“I have had the privilege to work with some of the brightest and most highly regarded lawyers in the country. LeElle is in that class. She is a brilliant strategist, master negotiator, and has the wisdom and discipline to know how and when to use honey or vinegar, both of which she does very effectively. LeElle is dogged in her pursuit of the issues and is as comfortable on Wall Street as she is in a small rural courthouse—a rare skill set indeed. I would not hesitate to recommend LeElle to anyone who needs strong, creative, and efficient counsel for important litigation or other dispute resolution matters.” – Andy Fletcher, General Counsel for Stonebriar Commercial Finance.

Location
  • 2121 North Pearl Street, Suite 900
    Dallas, TX 75201
Education
  • Harvard University, J.D., cum laude, graduated 2010
  • Duke University, B.A., magna cum laude, graduated 2007
Bar Admissions
  • Texas, Star Bar of Texas
  • New York, State Bar of New York
Court Admissions
  • United States Court of Appeals for the Fifth Circuit
  • United States Court of Appeals for the Federal Circuit
  • United States District Court for the Northern District of Texas
  • United States District Court for the Southern District of Texas
  • United States District Court for the Eastern District of Texas
  • United States District Court for the Eastern District of New York
  • United States District Court for the Southern District of New York

Winston & Strawn LLP
Headquarters: Chicago, Illinois

129 The Best Lawyers in America® awards

112 Best Lawyers: Ones to Watch® in America awards

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Recognized in The Best Lawyers in America® 2024 for work in:
  • Commercial Litigation
Awards:
  • Best Lawyers - Ones to Watch, 2021
  • Texas Rising Stars, Thomson Reuters, 2020
  • Best Lawyers Under 40 - D Magazine, 2020
Additional Areas of Practice:
  • Commercial Litigation
  • Energy Law
  • Litigation - Patent

Publications

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