Gregory A. Eichorn

Home » Attorneys » Gregory A. Eichorn

Gregory A. Eichorn

Partner

Chicago, IL

P +1 312.881.6300

F +1 312.435.2482

P 312.881.6300

F 312.435.2482

Biography Practice Areas Highlights

"Our team proactively protects the interests of clients in the construction industry, working with companies through all phases of their projects wherever the locale."

Bio

Greg currently represents some of the nation’s largest contractors, and his practice involves the resolution of complex constructiondisputes through negotiations, mediation, and, when necessary, arbitration and litigation for issues including breach of contract, liens, delays, wrongful termination, impacts, defective work and design, governmental audits, inefficiencies, bonds and insurance claims.

Greg’s background in construction and the law has afforded him with a unique ability to troubleshoot difficult issues before they become formal disputes through counseling, best practices, innovation, strategic solutions, and risk assessment and management.

Greg has a bachelor of science degree in civil engineering from the University of Illinois. His law degree at John Marshall Law School was earned while he worked full time for the nation’s largest general building contractor and construction manager in a variety of roles, ranging from cost and scheduling engineer, project accountant, senior engineer, project superintendent, and then serving as Corporate Counsel. Greg is admitted to practice in the State of Illinois. He serves as an adjunct professor of construction contracts and disputes at Northwestern University.  He also serves as the Chairman, an American Society of Civil Engineer’s delegate, and a drafting committee member for the Engineering Joint Contract Documents Committee (EJCDC).

Highlights

Admissions

• State of Illinois

Memberships

• Northwestern University, adjunct professor

• Northwestern University MPM Program, advisory board member

• Engineering Joint Contract Documents Committee (EJCDC), Chairman

• Engineering Joint Contract Documents Committee (EJCDC), ASCE Delegate

• Engineering Joint Contract Documents Committee (EJCDC), Drafting Committee Member

Education & Courses

• University of Illinois, B.S. Civil Engineering

• John Marshall Law School, J.D

Awards & Recognitions

• Best Lawyers, 2025

• Chambers USA, 2022-2024

• Illinois Super Lawyers - Rising Stars, 2008-2009

Publications & Presentations

• “Balancing Risk and Reward: The Complexities of Stadium Construction Projects,” Engineering News-Record, April 2024 (Presenter)

• “Navigating the Waves of Change: How PFAS Regulations May Ripple Through the Construction Industry,” Peckar & Abramson Webinar, February 2024 (Presenter)

• “Safety Forum: Recreational Marijuana & the Safe Construction Site,” Peckar & Abramson, P.C., and Chicagoland AGC Safety & Health Committee Forum, September 2023 (Presenter)

• “A High Stakes Game: Managing Risk for Stadium & Entertainment Projects”, Construction SuperConference, December 2019 (Presenter)

• “Candor and Camaraderie Can’t Always Avoid Disputes, Managing Risk on Alternative Delivery Projects, and Trends in Dispute Resolution for Construction Projects,” ASCE Construction Institute, October 2019 (Presenter)

• “Exploring Below the Surface: The 2018 EJCDC Construction Series Documents,” ABA Webinar, June 2019 (Presenter)

• “Identifying, Avoiding, Mitigating and Insuring Environmental Risk in Construction,” The Union League Club, October 2015 (Panelist)

News & Events

• Peckar & Abramson Has Largest Number of Construction Law and Litigation Attorneys Recognized by Best Lawyers 2025

• P&A Attorney Gregory A. Eichorn Named Chairman of Engineers Joint Contract Documents Committee

• Chambers USA Names Peckar & Abramson to Band 1 Level in Construction Law; 29 P&A Lawyers Recognized as Leading Attorneys; Six Regions and Government Contracts Practice Recognized

• Navigating the Waves of Change: How PFAS Regulations May Ripple Through the Construction Industry