About Vincent Paul
Vincent Paul Petrosino practices law in Chicago and is a partner at Serpico, Petrosino, Di Piero & O Shea, Ltd. He appears in federal court and is active in several professional organizations. Colleagues describe him as steady under pressure and methodical in the courtroom.
After completing his legal education, Petrosino entered practice in Illinois. Early in his career he began working on matters that required courtroom presence and close client contact. Over time he added federal litigation to his roster of work and secured admission to the United States District Court for the Northern District of Illinois.
Petrosino's professional memberships reflect the kinds of work he performs. He is a member of the American Association for Justice and the Illinois Trial Lawyers Association, groups that gather lawyers who litigate on behalf of plaintiffs in civil cases. He also belongs to the Chicago Bar Association and the National Italian American Bar Association. These affiliations connect him to peers across trial practice, local court systems, and community-focused legal networks.
In practice, Petrosino handles contested matters in both state and federal forums. He prepares pleadings, conducts discovery, argues motions and tries cases when they proceed to trial. He represents individuals and businesses, and he often works on cases that require developing factual records and presenting evidence to judges and juries. In federal court, he manages the procedural steps particular to that venue, including case management conferences and complex motion practice.
Clients and opposing counsel note that Petrosino is precise in courtroom presentation. He favors clear themes and a practical pace in litigation. He also takes time to explain procedural options to clients so they understand the likely timelines and risks. That practical orientation shapes how he structures cases and coordinates with other experts when necessary.
Petrosino contributes to his firm’s litigation practice and to the local bar through committee participation and occasional speaking engagements at professional association events. He works alongside fellow partners at Serpico, Petrosino, Di Piero & O Shea, Ltd. and collaborates with outside experts when cases demand specialized analysis.
He continues to litigate in Illinois state courts and in the United States District Court for the Northern District of Illinois. His current practice focuses on civil litigation in state and federal courts.
