


J. Patrick Chassaing
Principal
CHGO is all about helping people. And we like to win.
Practice Areas
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Professional Overview
Education
Community/Civic Involvement
Law Practice
Pat concentrates his practice in personal injury, workers compensation, business transactions, construction matters, employment matters, estate planning, local government law and real estate law, including class actions and appeals.
Experienced as an instrument-rated commercial pilot, Pat has provided special insight in aviation cases, including securing a multi-million-dollar wrongful death settlement based on a defective kit installed in a twin-engine aircraft, a $700,000 settlement for a passenger in a single-engine plane crash, and recovery of personal injury damages and total loss of a medical helicopter that crashed due to a circuitry failure. He has obtained a million-dollar-plus recovery for wrongful death caused by a motor carrier in interstate commerce and dangerous roadway conditions caused by a state transportation agency, and in a fatality caused by a dangerous railroad crossing. Pat has prosecuted and sustained on appeal a million-dollar-plus mechanic’s lien recovery.
Pat has lectured on the subject of insurance coverage for Missouri Continuing Legal Education purposes.
Prosecuting Attorney, City of Velda City, Missouri (2005-present)
Prosecuting Attorney, City of Hazelwood, Missouri (2001-2017)
Special Assistant Attorney General, State of Missouri (1989-1994)
Prosecuting Attorney, City of Brentwood, Missouri (1982-1999)
Bar Admissions
Missouri
Illinois
United States District Court, Eastern and Western Districts of Missouri, Southern District of Illinois
U.S. Court of Appeals, Eighth Circuit
U.S. Bankruptcy Court, Eastern District of Missouri
Professional Associations & Memberships
Missouri Bar
Bar Association of Metropolitan St. Louis
St. Louis County Bar Association
Professional Overview
Education
Community/Civic Involvement
Law Practice
Pat concentrates his practice in personal injury, workers compensation, business transactions, construction matters, employment matters, estate planning, local government law and real estate law, including class actions and appeals.
Experienced as an instrument-rated commercial pilot, Pat has provided special insight in aviation cases, including securing a multi-million-dollar wrongful death settlement based on a defective kit installed in a twin-engine aircraft, a $700,000 settlement for a passenger in a single-engine plane crash, and recovery of personal injury damages and total loss of a medical helicopter that crashed due to a circuitry failure. He has obtained a million-dollar-plus recovery for wrongful death caused by a motor carrier in interstate commerce and dangerous roadway conditions caused by a state transportation agency, and in a fatality caused by a dangerous railroad crossing. Pat has prosecuted and sustained on appeal a million-dollar-plus mechanic’s lien recovery.
Pat has lectured on the subject of insurance coverage for Missouri Continuing Legal Education purposes.
Prosecuting Attorney, City of Velda City, Missouri (2005-present)
Prosecuting Attorney, City of Hazelwood, Missouri (2001-2017)
Special Assistant Attorney General, State of Missouri (1989-1994)
Prosecuting Attorney, City of Brentwood, Missouri (1982-1999)
Bar Admissions
Missouri
Illinois
United States District Court, Eastern and Western Districts of Missouri, Southern District of Illinois
U.S. Court of Appeals, Eighth Circuit
U.S. Bankruptcy Court, Eastern District of Missouri
Professional Associations & Memberships
Missouri Bar
Bar Association of Metropolitan St. Louis
St. Louis County Bar Association
Professional Overview
Law Practice
Pat concentrates his practice in personal injury, workers compensation, business transactions, construction matters, employment matters, estate planning, local government law and real estate law, including class actions and appeals.
Experienced as an instrument-rated commercial pilot, Pat has provided special insight in aviation cases, including securing a multi-million-dollar wrongful death settlement based on a defective kit installed in a twin-engine aircraft, a $700,000 settlement for a passenger in a single-engine plane crash, and recovery of personal injury damages and total loss of a medical helicopter that crashed due to a circuitry failure. He has obtained a million-dollar-plus recovery for wrongful death caused by a motor carrier in interstate commerce and dangerous roadway conditions caused by a state transportation agency, and in a fatality caused by a dangerous railroad crossing. Pat has prosecuted and sustained on appeal a million-dollar-plus mechanic’s lien recovery.
Pat has lectured on the subject of insurance coverage for Missouri Continuing Legal Education purposes.
Prosecuting Attorney, City of Velda City, Missouri (2005-present)
Prosecuting Attorney, City of Hazelwood, Missouri (2001-2017)
Special Assistant Attorney General, State of Missouri (1989-1994)
Prosecuting Attorney, City of Brentwood, Missouri (1982-1999)
Bar Admissions
Missouri
Illinois
United States District Court, Eastern and Western Districts of Missouri, Southern District of Illinois
U.S. Court of Appeals, Eighth Circuit
U.S. Bankruptcy Court, Eastern District of Missouri
Professional Associations & Memberships
Missouri Bar
Bar Association of Metropolitan St. Louis
St. Louis County Bar Association
Education
Community/Civic Involvement
Recent News

CHGO Municipal Law Attorneys Present at Newly Elected Officials Training Seminar
May 6, 2025

Keith Cheung Recognized with 2025 Torch Bearer Award by MAABA
May 6, 2025

Patricia Susi Named One of STL's Most Admired Business Leaders
Jan 14, 2025

CHGO Law Attorneys Announced as Super Lawyers 2024
Nov 19, 2024

Robert Jones Reelected to Missouri Bar Board of Governors
Aug 19, 2024
Practice Areas
Recent News

CHGO Municipal Law Attorneys Present at Newly Elected Officials Training Seminar
May 6, 2025

Keith Cheung Recognized with 2025 Torch Bearer Award by MAABA
May 6, 2025

Patricia Susi Named One of STL's Most Admired Business Leaders
Jan 14, 2025

CHGO Law Attorneys Announced as Super Lawyers 2024
Nov 19, 2024

Robert Jones Reelected to Missouri Bar Board of Governors
Aug 19, 2024
Practice Areas
Recent News

CHGO Municipal Law Attorneys Present at Newly Elected Officials Training Seminar
May 6, 2025

Keith Cheung Recognized with 2025 Torch Bearer Award by MAABA
May 6, 2025

Patricia Susi Named One of STL's Most Admired Business Leaders
Jan 14, 2025

CHGO Law Attorneys Announced as Super Lawyers 2024
Nov 19, 2024

Robert Jones Reelected to Missouri Bar Board of Governors
Aug 19, 2024