Ellen L. Green

Douglas Masters litigates and counsels clients primarily in the areas of intellectual property, advertising and unfair competition. He helps brand owners, sports leagues, athletes and advertisers protect and leverage their branding, marketing and other IP assets. Notably, he has worked with the National Collegiate Athletic Association for nearly 20 years on brand protection strategy, helping strengthen the organization’s ability to support college athletics. Doug has counseled major cor...

As a commercial litigator and counselor with more than 20 years of experience, Matt brings a creative, pragmatic, and efficient approach to helping clients resolve complex legal and business problems. Matt is co-chair of the firm’s Litigation Group. He has significant, first-chair trial experience in a wide variety of business disputes. He regularly represents clients in matters involving breach of contract, fraud, breach of fiduciary duty, non-competes, and post-closing disputes. Matt ...

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

Maureen O'Brien is a partner in the Chicago office of Kirkland & Ellis LLP. Maureen's practice includes a broad range of employee benefits and executive compensation matters, and she has extensive experience with the M&A aspects of employee benefits and executive compensation, including strategic and private equity transactions. Maureen advises clients on the design and implementation of qualified and nonqualified retirement plans, welfare plans, Section 409A matters and equity and in...

Allan Muchin co-founded the law firm that bears his name. What began in 1974 as the 24-attorney firm Katten Muchin Zavis has today become Katten Muchin Rosenman LLP, with more than 600 attorneys worldwide. Allan began his legal career as a trial attorney for the Internal Revenue Service. When he helped launch Katten Muchin Zavis, he and his partners set out to create a law firm that was innovative, specialized and entrepreneurial. His practice concentrated on advising corporations, partnershi...

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...

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

When advising creditors in bankruptcies and reorganizations, Peter Siddiqui knows that his job is to make the best of a bad situation. Banks, hedge funds and private equity investors, as well as borrowers, turn to him to find swift solutions that protect their interests with minimal distress. Because he understands his clients' business realities — whether they're in the automobile, real estate, financial services or hospitality and resort industries — he offers advice that's not ...

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

Dennis J. Kelly is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Criminal Defense: White-Collar. Dennis J., who practices law in Chicago, Illinois, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dennis J. is held by other top lawyers in the same geographic and legal practice area.