Colin O’Malley

Melissa A. Siebert is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Melissa A., 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 Melissa A. is held by other top lawyers in the same geographic and legal practice area.

David A. Baker serves as head of the Firm's Estate, Trust and Guardianship Controversy Practice Group. He advises clients in the areas of estate, trust and guardianship litigation; probate, estate, trust and guardianship administration; and charitable foundation and exempt organization administration and litigation. He also practices estate planning. Please visit our website for more on David's biography: https://www.mwe.com/en/team/b/baker-david-a

Kristofer S. Riddle is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs, Product Liability Litigation - Plaintiffs and Qui Tam Law. Kristofer S., 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 Kristofer S. 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 ...

Brent has devoted more than 30 years to advising banks, thrifts, insurance companies and agencies, securities broker dealers, and investment advisory clients on complex regulatory matters, formation and capitalization, business combinations, examination, and enforcement issues. Brent is a strong advocate for his clients, dedicated to achieving reasonable and practical solutions. Brent’s experience is focused on the financial services industry. He began his career as an examiner with the...

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...

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

Ashley C. Keller is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Ashley C., 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 Ashley C. is held by other top lawyers in the same geographic and legal practice area.

Nicole Berg is a Partner at Keller Postman LLC. She combines an analytical approach to the practice of law with expertise in legal strategy and briefing critical motions to deliver exceptional advocacy on behalf of plaintiffs. At Keller Postman, Nicole’s practice focuses on product liability matters. She sits on the Law & Briefing Subcommittee in the 3M Combat Arms Earplugs MDL—one of the largest group litigation matters in the United States—and is a member of the Plaint...

Susan Daley is a partner with Perkins Coie and has more than 20 years of experience in the areas of executive compensation, securities and employee benefits. She is currently President of the Chicago Chapter of the National Association of Stock Plan Professionals, Chair of the Federal Securities Law Subcommittee of the Employee Benefits Committee of the American Bar Association Section of Taxation, and a member of the BNA Pension & Benefits Advisory Board. She is a former Chair of the Ill...