Sidley Austin



Dispute resolution

International law firm Sidley Austin is home to lawyers across 20 offices worldwide. Headquartered in Chicago, the firm has a widespread footprint in the states with offices in Boston, Los Angeles, Century City, Palo Alto, San Francisco, Houston, Washington DC, and New York – hubs with significant authority in both litigation and corporate practice. Clients sing the firms praises on a multitude of areas: “What do they do well? Everything,” states one client in particular, adding, “Legal and technical expertise and client-friendly approach, by which I mean advice offering practical solutions, explained in a non-technical manner, executed promptly, with a minimum of management input, and cost-efficient.”

      A notable standout and co-lead of the Supreme Court and appellate practice is Peter Keisler, who clients describe as being “among the foremost litigators in the country” adding, “you could deduce that fact merely based on his team's remarkable clarity in written work and Peter's calm and compelling simplicity in oral argument. He is one of the only lawyers I have met that can effortlessly sound like a helpful advisor to the court, and at the same time a peer to the bench.” Clients also praise the team, declaring “The whole team is utterly humble and kind, and they approach their work with reverence, similar to how a concert pianist would approach a Steinway in a packed concert hall.” Another proclaims, “Mr. Keisler and his appellate group set the bar by which other firms are measured.” Fellow DC litigators Marinn Carlson and Jennifer Haworth McCandless are lead counsel in five large, ongoing investor-state arbitrations defending the Republic of Peru. Karen Popp and Kristin Graham Koehler are members of the lead counsel team representing a leading global network of higher education institutions in conjunction with False Claims Act allegations regarding one of their universities. Joseph Guerra, Carter Phillips, and new litigation star Virginia Seitz were members of the team that secured a significant high-profile victory on behalf of the U.S. House of Representatives in its challenge to the Trump administration’s diversion of $8.1 billion for construction of the southern border wall — billions of dollars more than Congress had appropriated for that purpose. The team represented the House in its appeal from a district court decision dismissing the House’s suit. Paul Kalb is defending Millennium Pharmaceuticals, Inc. in False Claims Act litigation filed by a former sales representative related to the drug Integrilin, alleging that defendants engaged in improper marketing of the drug, thereby causing false claims for reimbursement to be filed with the government. After a multistate investigation, the district court dismissed the case, which prompted appeals and cross-appeals. The Ninth Circuit affirmed all but one issue for the district court to reconsider. In April of 2020, the complaint was again dismissed. The decision is currently on appeal to the Ninth Circuit. Paul Zidlicky is representing the North American Meat Institute in its challenge under the Commerce Clause to California’s Proposition 12, which seeks to impose California’s animal confinement standards for pork and veal outside of California’s borders, and that allegedly discriminates against out-of-state competitors and imposes substantial burdens on interstate and foreign commerce. Mark Hopson is lead trial counsel for FleetCor Technologies in its litigation with the Federal Trade Commission. The FTC is seeking a permanent injunction and hundreds of millions of dollars in consumer redress. The case is currently pending in the Northern District of Georgia and trial is expected.

      Appellate litigator Tacy Flint is an experienced Chicago-based trial lawyer in matters related to commercial, intellectual property and constitutional actions. Flint was a member of the lead counsel team who successfully defeated two preliminary injunction motions at both the U.S. district court and court of appeals on behalf of the Barack Obama Foundation against an attempt to block the imminent construction of the Obama Presidential Center. Five years after the Foundation announced the plan to build the Obama Presidential Library Center, construction finally began in August 2021 as a result of these victories. Tom Rein and Connie Trela are part of the lead council team defending CalAmp Corporation in a case that alleged infringement on four Omega patents. After unfavorable trial, the judgement was appealed to the U.S. Court of Appeals for the Federal Circuit, the decision was vacated and remanded for a new trial on infringement, willfulness, and damages. After a retrial in 2019, the case remains on appeal.

      Dallas based partners Yolanda Garcia and Angela Zambrano were lead counsel to Forterra Inc. in a complete victory in a $100 million dollar “earn out” arbitration arising from the acquisition of certain building products companies by a private equity firm. Penny Reid leads the charge in representing the official committee of unsecured creditors of Highland Capital Management’s Chapter 11 bankruptcy case. Yvette Ostolaza serves as the managing partner of the Dallas office, and global co-leader of the litigation practice. She is lead counsel in an ongoing action on behalf of Airbus Helicopters Inc., and Airbus Helicopters S.A.S. in connection with a helicopter accident in the Grand Canyon on February 2018 that gained national attention. The team removed the case to federal court under a novel theory of federal officer jurisdiction that had been the source of a circuit split and untested in the Ninth Circuit Court of Appeals. After the case was remanded then stayed by the Ninth Circuit Court of Appeals pending an appeal by Airbus, the Ninth Circuit issued a 2-1 decision affirming the district court’s order. The case is now proceeding in the District Court of Clark County, Nevada.

      Joan Loughnane of the New York office represents one of the largest U.S. banks in an internal review and multiple parallel investigations concerning fraud in unemployment benefits applications and payments post-COVID through the Pandemic Unemployment Assistance program. This includes dozens of state and federal investigations being conducted by the Department of Labor, the U.S. Secret Service, and over a dozen states’ U.S. Attorneys’ Offices. Andrew Stern achieved an important victory for Tavistock Group, the owner of RoundPoint Mortgage Servicing Corp. after a trial in the Delaware Court of Chancery. The team represents the client in expedited litigation arising out of a merger agreement between RoundPoint and Freedom Mortgage Corp.

      San Francisco partner Sara Brody served as lead partner representing the former Officers and Directors of SunEdison, Inc. in defending securities, shareholder, and other related litigation arising initially out of a dramatic decline in the company’s stock price and liquidity issues that culminated in the largest renewable energy company bankruptcy in 2016. After five years of litigation, in February 2021, the final set of securities claims against Sidley’s clients were dismissed with prejudice pursuant to a settlement. The team was able to negotiate the resolution of all of these cases within the available insurance. Century City partners Chad Hummel and Jack Yeh are co-lead trial counsel in defending a case brought by the California Attorney General alleging under California’s Unfair Competition and False Advertising laws that Ashford University, and its co-defendant parent company, defrauded students into enrolling in their online degree programs. This first-of-its-kind-in-California case is scheduled for trial in October 2021.