Peter Sullivan

Daniel K. Ryan is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - ERISA and Litigation - Insurance. Daniel K., who practices law in Chicago, Illinois, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel K. is held by other top lawyers in the same geographic and legal practice area.

Alexander J. Bandza is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Alexander J., 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 Alexander J. is held by other top lawyers in the same geographic and legal practice area.

Marc H. Trachtenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law and Trademark Law. Marc H., who practices law in Chicago, Illinois, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc H. is held by other top lawyers in the same geographic and legal practice area.

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

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

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

Mr. Leavitt is a Founding Partner with Grund & Leavitt. He has litigated a number of high profile trials and appeals in both federal and state courts.Before becoming a partner in the firm, he served as a judge in the Circuit Court of Cook County, Illinois and as a justice on the Illinois Appellate Court. This followed 20 years in a successful private practice. The Chicago Bar Association remarked when evaluating him that "he enjoys impeccable credentials" and the Chicago Council of Lawyer...

Al began as an associate in the firm of William D. Maddux & Associates from 1984. William D. Maddux became a Circuit Court Judge in Cook County in 1990 and Al became an owner of Kralovec, Jambois & Schwartz, the successor firm to William D. Maddux & Associates at that time. Al's personal highlights include successful jury verdicts in Marion County, Indiana, Cook County, DeKalb County, Will County, Winnebago County and McHenry County, Illinois. The verdicts in DeKalb County (1993) ...

As a partner in the Intellectual Property practice group, Jeff focuses his work on patent litigation and strategic counseling related to pharmaceutical, chemical, biotechnology, electrical engineering, agricultural and food products. A registered patent attorney with four decades of experience, Jeff has successfully represented both patent owners and patent challengers through all stages of federal litigation and appeals. A significant portion of Jeff’s practice includes advising pharma...

John F. Gibbons has more than 25 years of experience handling a broad range of civil and criminal matters for national corporations, financial institutions, brokerage houses, pension funds, real estate entities, and individuals, including fraud, breach of contract, trade secret, class action, RICO, civil rights, commercial and criminal securities cases, grand jury investigations, white collar defense, FCPA issues, corporate internal investigations and appeals. He has advised many corporate cl...