About
Peter M. LaSorsa is the president of his law firm and represents employees, individuals, consumers, corporations, and small business owners in Illinois. His practice includes employment law, sexual harassment, discrimination, severance agreements, business disputes, housing discrimination, and public-accommodation matters. He handles claims before administrative agencies and in state and federal courts while maintaining offices serving clients in Chicago and Springfield.
Peter earned a J.D. from John Marshall Law School, where he was a member of Law Review, and an undergraduate degree from Bradley University. His legal education is supplemented by a long background in technology, security, and military service. That combination supports his approach to employment disputes, document-intensive litigation, business counseling, and legal technology issues while allowing him to address matters that require careful investigation and direct client communication.
Peter has practiced employment law since 2003 and represents clients before the Illinois Department of Human Rights, Illinois Human Rights Commission, EEOC, and state and federal courts. He represents employees and employers in harassment and discrimination matters, reviews severance agreements, and advises businesses on employment agreements and preventive practices. He handles school sexual harassment matters and has represented students making or defending against harassment allegations.
Peter M. LaSorsa is a member of the federal trial bar in the Northern District of Illinois and is admitted before the Seventh Circuit and United States Supreme Court. He previously served as a Green Beret and later worked as an attorney for Caterpillar Inc. His practice emphasizes direct attorney access, efficient case movement, technology-supported preparation, and the ability to take disputed employment and civil matters through trial when necessary.
Law Office Affiliations
- Attorney, Law offices of Peter M. LaSorsa, P.C.
- Member, Illinois State Bar Association
- Chair, Corporate Law Departments Section Council, Illinois State Bar Association (2008-2009)
- Former Member, American Bar Association
- Former Member, Peoria Bar Association
- Former Member, American Association of Justice
Licensed State
- Illinois
Education
- John Marshall Law School
Juris Doctor (JD)
Awards & Badges


- Cannabis Law
- Discrimination
- Employee Benefits
- Employment
- Employment Litigation
- Government Contracts
- Lawsuits & Disputes
- Litigation
- Sexual Abuse
- Sexual Harassment
- Whistleblower
- Wrongful Termination





