People

Jeff Wehmer

Shareholder

Shareholder Jeff Wehmer joined Sandberg Phoenix in 2014. His legal practice focuses primarily on product liability and premises liability litigation, while also serving clients with business litigation and fiduciary litigation defense. Jeff works with diverse clients including designers, manufacturers, sellers, and property owners and managers, and from industries including consumer, industrial, and recreational products, heavy machinery, small and medium sized enterprises, transportation, insurance, and real estate.

Developing a personal relationship is integral to Jeff’s work with his clients. He invests time in learning about his clients’ businesses and competitive landscape, and finding an approach to legal situations that best represent their goals and interests. Interacting with clients new and old is one of the most rewarding aspects of his career. Jeff’s aggressive, consistent approach to litigation and client service continue to help him forge and maintain client relationships, including with one of the largest equipment rental companies in North America and one of the nation’s largest real estate development and property management firms. Related to the latter, Jeff regularly defends property owners and managers, including specializing in negligent security cases.

Since 2024, Jeff has been named a Best Lawyer in America for Product Liability Litigation – Defendants. From 2021 to present, Jeff has been named a Missouri and Kansas Rising Star in product liability by Super Lawyers. In 2026, Jeff was listed in St. Louis Magazines’ “Best of” edition for product liability defense. Moreover, in 2018 Jeff was named to the St. Louis Business Journal’s 30 Under 30 class, an award given to young professionals with a high level of professional achievement and community involvement.

Jeff serves on the firm’s Recruiting Committee, Professional Development Committee, and is a leader in the firm’s summer associate program. He is also a Product Liability Advisory Council (“PLAC”) Member.

Outside the office, Jeff enjoys spending time with his wife Deane and their two children, playing golf, and traveling. Jeff is a Missouri Athletic Club member where he has served on the Governance Committee since 2019 and was a Board of Governor from 2022 to 2025.

Licensures and Admissions

Illinois

Missouri

United States District Court for the Eastern District of Missouri

United States District Court for the Western District of Missouri

United States District Court for the Southern District of Illinois

Representative Experience

Obtained a summary judgement on behalf of our clients before the Circuit Court of St. Francois County, Missouri. The case involved strict product liability and negligence claims, stemming from significant injuries suffered by Plaintiff while Plaintiff was operating a Polaris RZR sport UTV during a dirt track race.

Obtained summary judgment in favor of a large, nationwide product manufacturer and seller in personal injury product liability case alleging design defect, failure to warn, negligence, and punitive damages related to roof truss failure and roof collapse wherein claimed damages exceeded eight figures.

Represented property management and property ownership companies in various personal injury and wrongful death negligent security cases, involving claims of negligence, premises liability, and punitive/aggravating circumstances damages related to criminal acts committed by a third parties on defendants’ property where claimed damages often exceeded eight figures. Obtained favorable resolutions.

Represented a nationwide theme park operator in a personal injury product liability case involving design defect, failure to warn, negligence, and punitive damages allegations related to a rollercoaster derailing with claims exceeding eight figures. Obtained a favorable resolution.

Represented waterslide engineers in a widely publicized wrongful death product liability case involving design defect, failure to warn, negligence, and aggravating circumstances damages allegations claiming that a waterslide defect led to a minor’s death. Obtained favorable resolution for client.

Obtained summary judgment in favor of the trustee in a fiduciary litigation case involving undue influence, lack of mental capacity, and trustee wrongdoing where the claim damages exceeded seven figures.

Obtained favorable resolution for sporting goods manufacturer and operator in personal injury product liability case involving design defect, failure to warn, negligence, and punitive damages allegations, while the jury awarded an adverse, eight-figure jury verdict against remaining defendants.

Received favorable resolution from a multi-million-dollar lawsuit against a boiler maintenance and repair entity in a widely publicized wrongful death and personal injury product liability case involving allegations of design defect, failure to warn, negligence, and punitive damages resulting in a purported boiler explosion.

Obtained numerous trial verdicts in favor of a large homeowners’ association property management company related to various claims including but not limited to breach of contract and ordinance violations.

Represented former Los Angeles Lakers basketball star Kobe Bryant in breach of contract and declaratory judgment case. Received favorable judgment.

Professional Affiliations

American Bar Association

Bar Association of Metropolitan St. Louis

Lawyer’s Association of St. Louis

Products Liability Advisory Council

Theodore McMillian American Inn of Court

Jeff has also been an editor of the Journal of the Missouri Bar in the areas of probate and trust law.

Civic Activities

Humane Society, Volunteer

Team Activities for Special Kids, Junior Board Member

Presentations

Panel Member, “Bottom Up: The Next Generation is Changing the Profession,” Presented by the American Bar Association’s Law Practice Division

Publications

Co-author, “Employee or Independent Contractor? How the Effects of Classification Impact Employer Liability,” IADC Defense Counsel Journal Volume 83, Ed. 1 (January 2016)

Awards & Recognition

2025
St. Louis Magazine
"Best of" Edition- Product Liability Defense

2024-2027
Best Lawyers in America
Best Lawyer
Product Liability Litigation - Defendants

2021-2026
Super Lawyers
Missouri & Kansas Rising Star
Personal Injury Products, Defense

2018
St. Louis Business Journal
30 Under 30
An award given to young professionals with a high level of professional achievement and community involvement.