Peter S. Roeser

A partner in LP’s Litigation Practice Group, Peter has more than 25 years of experience representing businesses and individuals in complex commercial litigation and arbitration matters. He is a member of the Trial Bar of the U.S. District Court for the Northern District of Illinois and has successfully defended and prosecuted cases involving breach of contract, trademark and copyright infringement, product recall and warranty claims, fiduciary duty, claims under the Illinois and Delaware Business Corporation Acts, fraud, and unfair competition in state and federal courts across the country. Peter also advises businesses and executives on employment-related matters, including restrictive covenants, employment agreements, and trade secret protection.

Clients value Peter’s business-focused approach to disputes, practical judgment, and focus on defining and achieving business objectives—whether through litigation or the strategic avoidance of it. When litigation is the right tool, Peter prioritizes strategies designed to efficiently prepare for trial while advancing the client’s objectives. Drawing on his extensive litigation experience, he evaluates matters early to identify risks, leverage, and viable paths to resolution, enabling clients to manage expectations and make well-informed decisions. Strategies may include seeking temporary emergency relief, filing early dispositive motions, or strategically using the litigation process in other non-traditional ways to create leverage and drive resolution.

Highly regarded for his formidable advocacy skills in the courtroom, Peter has been recognized by clients and peers for his exceptional litigation skills and dedicated client service. He earned a Martindale-Hubbell AV Preeminent® rating, is named among Leading Lawyers® in commercial litigation, has been recognized as an Illinois Super Lawyer® since 2015, and was named a Crain’s Chicago GenX Notable Leader in Law in 2019.

Peter earned his J.D., cum laude, from Loyola University of Chicago and his B.A. from the University of Wisconsin. Before joining LP, Peter was a partner at and founder of Roeser Tanner & Graham LLC. Outside of the courtroom, Peter enjoys spending time with his family, including his three sons, and participating in competitive sports. He has served on the board of directors of the New Trier Hockey Club and previously served as the President of the Winnetka Hockey Club.