Mark Weissburg

Gregory S. Gistenson is a lawyer recognized by Best Lawyers in the practice area of Litigation - Construction. Gregory S. practices law in Chicago, Illinois Best Lawyers has recognized Gregory S. Gistenson since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Gregory S. Gistenson is held by other lawyers.

Dan Burnham has a comprehensive intellectual property practice that encompasses a diverse range of sophisticated technologies and legal issues. He is a registered patent attorney who represents clients in federal courts and at the United States Patent and Trademark Office. What do you focus on? I utilize my engineering experience to work closely with clients in the product development process, helping to avoid competitive patents and ensure commercial exploitation of new products through effe...

Shannon McNulty is a partner at Clifford Law Offices, where she leads the firm’s fraud, mass torts, and class actions practice. She represents clients in complex litigation involving fraud and concealment, conspiracy, contract and employment disputes, sexual harassment, environmental matters, and antitrust claims. Before entering private practice, Ms. McNulty spent ten years with the Chicago Police Department, including serving as chief of staff to the first deputy superintendent. Her b...

Michael J. Summerhill is a partner in the firm’s Litigation practice group. He is a seasoned litigator with extensive appellate and trial court level experience. He represents clients ranging from Fortune 500 companies to startups in a variety of industries, including health care, software, health information technology, financial services and FinTech, medical device, consumer products, and venture capital. Mike also arbitrates commercial disputes before the American Arbitration Associa...

Timothy Cavanagh, Founder With more than 35 years of experience, nationally recognized trial attorney Timothy J. Cavanagh has championed the rights of personal injury victims across Illinois and throughout the country. Since founding Cavanagh Sorich Law Group in 1997, he has secured more than 75 verdicts and settlements totaling $900 million on behalf of his clients. Cavanagh’s cases have broken Illinois records, strengthened safety standards, and prompted policy change within city and ...

As bond and underwriter's counsel, Lewis Greenbaum advises state and local governments, nonprofits and public-private partnerships on a range of general obligation and revenue bond financings. With a public finance practice spanning more than 40 years, Lew has been involved in hundreds of high-profile public projects and public-private partnerships. Lew also advises on public finance legislation. He is the co-author of the Local Government Debt Reform Act and the Municipal Bond Reform Act, tw...

Wes is a partner in the Corporate & Securities practice group. He provides comprehensive legal services and advice to asset managers, proprietary trading firms, single-family offices, multifamily offices, and wealth management advisors. Wes counsels them on a wide range of transactional and regulatory issues, including corporate formation, structure and succession planning, operational and administrative matters, securities, futures, and derivatives matters, brokerage and derivatives docu...

Joshua J. Waldbeser is a lawyer recognized by Best Lawyers in the practice area of Employee Benefits (ERISA) Law. Joshua J. practices law in Chicago, Illinois Best Lawyers has recognized Joshua J. Waldbeser since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Joshua J. Waldbeser is held by other lawyers.

Head of the Securities practice group, Mark Wood is a highly skilled, pragmatic and client-focused practitioner with extensive experience representing public companies and investment banks in a wide variety of ongoing and transactional matters. These include IPOs and other public offerings of equity and debt securities, as well as mergers, acquisitions and other strategic transactions. Mark is also a leading advisor to institutional investors in highly structured private investment in public ...

Michael J. Baum is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Michael J. practices law in Chicago, Illinois Best Lawyers has recognized Michael J. Baum since 2016. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael J. Baum is held by other lawyers.