Eugene J. M. Leone

Bill is a litigator who manages employment‑related disputes before federal and state courts and administrative agencies throughout the country. As the former chair of the firm’s Labor & Employment practice group, he brings deep leadership experience and serves as a strategic partner to companies and executives across the broad spectrum of critical business and employment matters that impact their operations. Bill’s litigation practice encompasses the full spectrum of employmen...

Stephanie S. McCann focuses her practice on corporate finance. She represents private equity groups, commercial lending institutions and major public and private companies in connection with the structuring, negotiation and documentation of domestic and international secured and unsecured financing transactions, including senior, mezzanine and subordinated debt transactions, acquisition financings, recapitalizations, loan workouts and restructurings. Stephanie is the chair of the Firm’s...

Craig Annunziata is the managing partner of the Chicago office and a partner in the Tampa office. He represents management in employment-related disputes. The majority of his practice is before federal and state courts and alternative dispute forums throughout the United States. He also defends management against charges filed with the U.S. Equal Employment Opportunity Commission (EEOC) and related state agencies. A significant portion of his practice is devoted to counseling management, prio...

Conrad C. Nowak joined Corboy & Demetrio in 2023, bringing with him more than 18 years of defense litigation experience in the areas of personal injury, product liability, toxic tort, construction, aviation, trucking and commercial litigation. A former litigation partner at a national law firm, he successfully represented clients at numerous trials, mediations and arbitrations. He has harnessed that experience to better serve people and families who have suffered due to the negligence of ...

A skilled negotiator and litigator, partner Michael F. Koenigsberger focuses his practice on family law- related matters. Recognized as one of Chicago’s leading lawyers in family law, he has represented hundreds of clients in complex custody and financial issues, prenuptial agreements, paternity cases and domestic relations. Particularly adept at dealing with high-asset, complex cases, Michael takes pride in working with clients through all phases of the issues they face, from litigatin...

Melissa A. Vallone is a lawyer recognized by Best Lawyers in the practice area of Patent Law. Melissa A. practices law in Chicago, Illinois Best Lawyers has recognized Melissa A. Vallone since 2026. 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 Melissa A. Vallone is held by other lawyers.

Andrew S. May is a seasoned securities and commodities partner with decades of experience in navigating complex compliance issues, regulatory enforcement actions, and customer disputes, as well as industry disputes. As a true counselor to his clients, he prioritizes understanding their unique operations and challenges alongside the laws and regulations governing them. With over 25 years of experience in serving participants in the securities and futures industries, Andrew is well-equipped to ...

Attorney Helena Trachtenberg is dedicated to working with individuals facing complex family law issues. Her experience in working with couples has offered her valuable perspectives on the different approaches to marital dissolution. Whether a couple is seeking a traditional litigated divorce, mediated or collaborative law approaches to divorce, Helena Trachtenberg has the experience couples seek. Beyond divorce strategies, Helena offers prenuptial agreement services for engaged couples planni...

Richard E. Aderman is a lawyer recognized by Best Lawyers in the practice area of Tax Law. Richard E. practices law in Chicago, Illinois Best Lawyers has recognized Richard E. Aderman since 2018. 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 Richard E. Aderman is held by other lawyers.

Jeffrey P. Gray is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Jeffrey P. practices law in Chicago, Illinois Best Lawyers has recognized Jeffrey P. Gray 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 Jeffrey P. Gray is held by other lawyers.