Michael J. Warner

Mark D. Pollack is a partner in the Litigation practice of Paul Hastings and is based in the firm’s Chicago office. He also serves as the Firm’s General Counsel. Mr. Pollack concentrates his practice in the areas of white-collar criminal defense, complex commercial litigation, internal corporate investigations, and compliance counseling. He has extensive experience in counseling and defending corporations, boards of directors, and executive officers in relation to a broad range of...

Felicia Gerber Perlman represents clients in a variety of complex business reorganizations, debt restructurings and insolvency matters. Ms. Perlman has advised debtors, creditors, lenders, investors, sellers, purchasers and other parties-in-interest in all stages of restructuring transactions from Chapter 11 reorganizations to out-of-court negotiations, workouts and acquisitions. She is a frequent speaker on bankruptcy topics. In addition, she has been recognized in Turnarounds & Workouts...

Gretchen Scavo is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Mergers and Acquisitions. Gretchen, 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 Gretchen is held by other top lawyers in the same geographic and legal practice area.

Laura Keidan Martin counsels health care providers on their most challenging transactions and compliance issues. As co-chair of Katten's national Health Care practice, she represents hospitals and health systems, ancillary services and post-acute care providers, physician groups and life sciences companies. Ultimately, Laura's work on both transactional and compliance matters paves the way for health care providers to successfully navigate risks while achieving business objectives. Toward tha...

Mercedes Badia-Tavas provides legal and business guidance to clients on a broad range of immigration law cases, with focus on Fortune 500 and small companies alike. Mercedes supports her firm’s offices and clients across various states on immigration employment transfers and up-to-date compliance. As an immigrant herself, Mercedes finds particular fulfillment in helping companies and individuals immigrate to the United States and participate in the American dream through startups and bu...

William R. Fahey is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. William R., 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 William R. is held by other top lawyers in the same geographic and legal practice area.

With over 25 years of experience in the real estate industry, Linsey Cohen has navigated every corner of the field—from retail and office spaces to multifamily developments. Clients value Linsey for her deep knowledge of the real estate landscape and her proven ability to navigate complex transactions. Her impressive client portfolio includes investors and corporations with property interests spanning the United States. Linsey brings tireless business savvy to every deal, keeping transa...

Neal is a distinguished attorney with a practice in insurance coverage and reinsurance, boasting an impressive career spanning more than 40 years. His experience includes representing national and international insurance clients in intricate coverage disputes across various lines, including commercial business, property and casualty, accident & health, fidelity, and more. Through a blend of innovative thinking and extensive experience, Neal collaborates closely with his clients to devise ...

Thomas J. Wimbiscus, a shareholder with McAndrews, has more than thirty years of experience and practices in all areas of intellectual property litigation, with a special emphasis on patent and trademark litigation. He has appeared in over 100 litigations and over 100 inter partes reviews (IPRs). He was named one of the 10 most active IPR practitioners in the U.S. for patent owners. (Patexia 2018.) Tom was named as one of the world’s leading patent professionals by IAM Patent 1000 in 20...

E. Lynn Grayson is a partner in the environmental law firm of Nijman Franzetti LLP in Chicago. She is consistently recognized as a leading environmental lawyer by Chambers USA , The Best Lawyers in America , Who’s Who: Environment , Illinois Super Lawyers, and the Leading Lawyers Network . She is AV Peer Review Rated, Martindale-Hubbell’s highest peer recognition for ethical standards and legal ability. Ms. Grayson formerly was a partner and chair of the environmental practice gro...