Karen Kies DeGrand

Andrew S. May is a seasoned securities and commodities partner with decades of experience in navigating complex compliance issues, regulatory enforcement actions, and customer disputes, as well as industry disputes. As a true counselor to his clients, he prioritizes understanding their unique operations and challenges alongside the laws and regulations governing them. With over 25 years of experience in serving participants in the securities and futures industries, Andrew is well-equipped to ...

Mark Grossmann is global chair of Katten's Corporate practice. Mark knows how to make deals happen. For more than 20 years, he has guided principals and finance sources alike through critical transactions that have helped them grow, compete and realize value. He is known for a refreshingly direct approach that cuts away extraneous issues and gets to the heart of what the parties need. Mark knows that lawyers are often seen as obstacles who can bury the deal in the legal details. He takes a di...

Frank J. Bertuca is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Frank J., who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Frank J. is held by other top lawyers in the same geographic and legal practice area.

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 ...

Kathryn Siegel is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Kathryn, who practices law in Chicago, Illinois, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathryn is held by other top lawyers in the same geographic and legal practice area.

Trisha M. Rich is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Trisha M., 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 Trisha M. is held by other top lawyers in the same geographic and legal practice area.

Kenneth P. Kansa is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Kenneth P., 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 Kenneth P. is held by other top lawyers in the same geographic and legal practice area.

Valerie Montague represents a variety of health care providers, digital health companies, senior living facilities, nonprofit trade associations, life sciences companies and vendors of health care providers. Valerie is a Certified Information Privacy Professional/United States (CIPP/US), the preeminent credential in the field of privacy. What do you focus on? I focus my practice on three main areas. HIPAA/Health Information Privacy and Security I assist health care providers and business asso...

Heidi Steele is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Heidi, 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 Heidi is held by other top lawyers in the same geographic and legal practice area.

Alan R. Greenfield is a top attorney recognized by Best Lawyers in the practice area(s) of Franchise Law. Alan R., who practices law in Chicago, Illinois, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alan R. is held by other top lawyers in the same geographic and legal practice area.