David A. Carpenter

Bruce Bonjour is former co-chair of the firm's Financial Transactions & Securitization practice and is the current chair of its Public Finance practice. Bruce has three major areas of focus: structured finance concentrating in the hospitality sector, municipal finance, serving as bond counsel as well as representing underwriters and credit enhancers, and New Markets Tax Credits. Since 1996 when he served as bond counsel for the tax exempt financing of an 800 room Hyatt Hotel located at Mc...

Steven D. Mroczkowski is a lawyer recognized by Best Lawyers in the practice areas of Construction Law and Litigation - Construction. Steven D. practices law in Chicago, Illinois Best Lawyers has recognized Steven D. Mroczkowski since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Steven D. Mroczkowski is held by other lawyers.

Kevin Desharnais, an environmental litigator and counselor with over two decades of experience, advises clients on environmental matters covering all environmental media, including such areas as air and water permitting and enforcement, hazardous waste management, Superfund liability, and remediation of contaminated sites. He has represented clients in numerous federal and state court proceedings and administrative tribunals, defended clients against citizen enforcement suits, and negotiated ...

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...

Nancy Rich provides practical guidance to clients confronting environmental legal issues, whether they arise in litigation, transactions or regulatory matters. A former environmental prosecutor with the Illinois Attorney General's Office, Nancy has a detailed understanding of environmental agencies and the laws they enforce. She regularly advises corporate, real estate and financial services clients. Nancy's experience as an environmental prosecutor gives her an insider's understanding of how...

Aaron D. Charfoos is a lawyer recognized by Best Lawyers in the practice area of Litigation - Intellectual Property. Aaron D. practices law in Chicago, Illinois Best Lawyers has recognized Aaron D. Charfoos since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Aaron D. Charfoos is held by other lawyers.

Kimball is recognized as one of the “Top 100 Trial Lawyers” in the United States by Benchmark Litigation US . He concentrates his practice in the areas of antitrust, patent infringement, class actions, and professional liability litigation. Having tried cases over a range of issues for more than 40 years, Kimball focuses his practice on complex commercial matters, with specific prowess in consumer class actions, patent litigation, and antitrust investigations. According to a clien...

Attorney Michael W. Lenert is an experienced litigator who has obtained tremendous results for both injured individuals as well as businesses and government entities. Mr. Lenert practices in the areas of personal injury , medical negligence , workers' compensation , commercial and general litigation. As a trial attorney, Mike understands that regardless of the nature of the case or the client involved, the only way he can passionately and effectively tell the story of his client is to be know...

In each year since 2015, Bryan has been listed in the IAM Patent 1000 – The World’s Leading Patent Professionals for Litigation. He is also recognized in Patent Litigation: Full Coverage in the 2018, 2021 and 2022 editions of The Legal 500 United States. Bryan has litigated and counseled on patent matters for companies of various sizes across a variety of complex industries and technologies including medical devices, optical networking, pharmaceuticals, 3-D technology, material co...

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...