Matthew S. "Matt" Sorem

Don brings to the table more than 30 years of experience advising companies and executives on best practices in executive and board compensation. Working within the framework of tax, accounting, SEC reporting, and bank regulatory issues, Don helps guide his clients on how best to recruit, incentivize, and retain top talent as well as advise individual executives in their transition into and out of C-Suite positions. Don is a partner in Barack Ferrazzano’s Compensation & Benefits Gro...

Mr. Kilyk practices exclusively in the field of intellectual property law, especially patent law. Mr. Kilyk specializes in patent post-grant review proceedings, inter partes reexaminations, interferences, and oppositions, as well as legal opinions, prosecution, and litigation matters, with specific concentration in the areas of biotechnology, chemistry, and pharmaceuticals. Recent technologies with which he has been involved include biosimilars, new chemical compounds, nucleic acid sequences,...

G. Peter Nichols is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. G. Peter, 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 G. Peter is held by other top lawyers in the same geographic and legal practice area.

Mark R. Galis is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law and Trademark Law. Mark R., who practices law in Chicago, Illinois, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark R. is held by other top lawyers in the same geographic and legal practice area.

Robert Surrette is a Shareholder and serves as President of McAndrews. He focuses his practice on the resolution of intellectual property and technology-related disputes with an emphasis on patent, trademark, trade secret and trade dress litigation. For the last 15 years, Bob has counseled a leading global medical device manufacturer on numerous litigation and transactional matters. Bob, building on his experience as a federal district court law clerk, has extensive experience in preparing an...

Bradley V. Ritter is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Bradley V., 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 Bradley V. is held by other top lawyers in the same geographic and legal practice area.

Lou Weber, former Tax Department Chair, concentrates his practice in transactional and controversy matters. He advises clients on a wide variety of corporate and private equity transactional issues. He advises clients on numerous issues related to both taxable and tax-free mergers and acquisitions on behalf of public and private buyers and sellers, and on behalf of private equity funds and their portfolio companies. He also has advised clients: in structuring tax-free reorganizations, recapit...

As a trial lawyer, Jim’s philosophy on litigation is based on integrity and hard work for his clients. True to his roots as a prosecutor, Jim values fighting for justice on behalf of those people harmed and always acts with a sense of urgency to hold wrongdoers accountable. While at Clifford Law Offices, Jim has worked on behalf of many individuals and families whose lives have been forever impacted. As the youngest of six children born and raised on Chicago’s Southside, Jim learn...

Melissa Caballero Dunn is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Melissa Caballero, 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 Melissa Caballero is held by other top lawyers in the same geographic and legal practice area.

Marcelo Halpern is a partner with the firm's Business practice and a member of the Technology Transactions & Privacy group. Marcelo's practice focuses on transactional, strategic and corporate representation of global "FORTUNE 100" companies, start-up and emerging growth companies, as well as U.S.-based and international governments and non-profits. His experience includes structuring and negotiating technology and intellectual property-oriented strategic alliances and joint ventures; sof...