Erika N. Wyatt

Michael Reagan is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Bet-the-Company Litigation. Michael, who practices law in Ottawa, Illinois, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Steve is a partner in the firm’s Litigation Department, where he represents clients in complex civil litigation matters before state and federal courts throughout the country. He has considerable experience with commercial disputes, constitutional challenges, statutory interpretation issues, and defamation and invasion of privacy suits. He is skilled at representing municipalities in cases involving so-called “locally undesirable land uses” such as airports, music amphitheat...

Emer Simic is a partner in the Intellectual Property Practice Group and focuses her practice on patent litigation and counseling in the pharmaceutical and biotech space. Emer has substantial experience successfully representing pharmaceutical and biotech companies in Hatch-Waxman and patent infringement disputes before the U.S. District Court and before the Patent Trial and Appeal Board (PTAB). A strategic advisor and compelling advocate, Emer partners with her clients to achieve their goals ...

David A. Herpe is a partner in the law firm of McDermott Will & Emery LLP, based in the Firm’s Chicago office. As a member of the Private Client Group, he counsels families, business owners, executives and individuals on all aspects of sophisticated estate and wealth transfer planning and related matters, including the preparation, administration and construction of wills and trusts, fiduciary income taxation, federal estate, gift and generation-skipping taxes, charitable gift planning, f...

Ziemowit T. Smulkowski is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Ziemowit T., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ziemowit T. is held by other top lawyers in the same geographic and legal practice area.

Russell is a Partner at Kirkland & Ellis LLP where he has spent his entire 36+ year career. He focuses his trial, appellate and alternative dispute resolution practice on patent infringement matters and disputes involving and related to technology transfer and patent license agreements. His trial practice includes jury trials, arbitrations and Section 337 proceedings before the U.S. International Trade Commission. His appellate practice concentrates on appeals in the Court of Appeals for ...

Barry A. Chatz is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. Barry A., who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Barry A. is held by other top lawyers in the same geographic and legal practice area.

Bill Arnault is a litigation partner in the Firm’s Chicago office. He focuses his practice in the restructuring context. He also has extensive experience litigating complex commercial cases in federal and state trial and appellate courts throughout the United States, including contract, energy, fiduciary duty, fraudulent transfer, bankruptcy, and employment cases. He has chaired or co-led multiple trials and hearings, including disputes involving Parker Drilling Company, Emerald Oil, In...

David Morris is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. David, who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Lowell D. Yoder focuses his practice on cross-border mergers and acquisitions, global tax planning and international tax controversies, representing high-tech, pharmaceutical, e-commerce, financial, consumer and industrial companies. He advises on tax-efficient structuring of cross-border acquisitions, dispositions, financings, internal reorganizations and joint ventures, as well as tax-beneficial planning for intangible holding companies, global supply chains and multi-jurisdictional service...