Mark M. Brennan

Legal Experience: Ms. Goldstein is a principal with the firm concentrating her practice in the areas of matrimonial and family law since 1985. She has been an active trial attorney preparing and litigating divorce cases involving complex financial matters, including business and real estate valuation, cash flow analysis and custody issues. Ms. Goldstein also has been appointed by the Court to represent children in custody disputes. Memberships: Ms. Goldstein is a member of the Illinois State ...

Brian gets things done: a nationally ranked lawyer with engineering and business expertise who’s just as comfortable trying cases in the courtroom as he is creating solutions at the negotiation table. As a trusted advisor and first-chair trial lawyer, Brian has represented clients through every stage of litigation on both sides of the “v” from pre-suit negotiations through trials and verdicts to appeals and judgment enforcement. Earlier in his career, Brian finished graduate...

Ivan M. Poullaos is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice. Ivan M., 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 Ivan M. is held by other top lawyers in the same geographic and legal practice area.

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

Brad protects the intellectual property rights of companies with strategic portfolio development and litigation. He is a registered patent attorney with the U.S. Patent and Trademark Office and has litigated numerous cases through trial verdict—cases involving complex patented technology, design patents, trademark rights to protect market position, as well as false advertisement and unfair competition claims. Throughout his career, he has guided companies to minimize the risk of infring...

Gene Zelek is a Partner in the Corporate and Litigation Practice Groups and serves as Co-Leader of Freeborn's Antitrust and Trade Regulation Practice Group. Gene focuses his practice on marketing-related law, applying extensive counseling, transactional and litigation experience on behalf of a wide variety of leading consumer and industrial businesses and consulting firms throughout the world. His areas of emphasis include antitrust, pricing and distribution, as well as branding, licensing, i...

Ronald Dicerbo is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Ronald, who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ronald is held by other top lawyers in the same geographic and legal practice area.

Jordan Klein’s broad-based trust and estate practice encompasses all aspects of estate planning, trust and estate administration and settlement, wealth transfer, philanthropy and fiduciary counseling services. His clients include corporate executives, families with dynastic wealth, privately held business owners, professionals, fund managers, family offices and private foundations. Jordan has significant experience designing creative solutions to achieve his clients’ estate planni...

With more than a decade of experience, Partner Seth L. Cardeli is a skilled trial attorney representing families across the country who have suffered as a result of medical negligence and malpractice, including children who have been injured during labor and delivery. Seth is well-versed in the many complex legal and medical issues surrounding birth injury claims. He regularly conducts educational seminars for other attorneys on important aspects of litigation such as taking depositions and d...

Kevin Dreher is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Kevin, who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin is held by other top lawyers in the same geographic and legal practice area.