Lyndon Sommer, Registered CPA (Ill.), M.Acct., J.D., is a Shareholder of Sandberg Phoenix and member of the firm’s Business Litigation and Products Liability practice groups. He focuses his work in the areas of commercial litigation, professional liability and product liability.
Lyndon specializes in professional negligence cases involving Certified Public Accountants, who he has successfully defended at trial and on appeal. He is experienced in defending accountants in federal court and is very familiar with federal procedure and expert requirements. Throughout his career, he has handled more than 100 professional negligence cases. He has also defended attorneys, architects, engineers and financial advisors in litigation and arbitration.
Lyndon is also experienced in representing shareholders of closely held companies involved in shareholder disputes, and has spent a substantial amount of time representing shareholders in trial courts and arguing several appeals arising out of shareholder litigation. These appeals have been argued in both state and federal courts.
Having tried cases in federal and state courts in Missouri and Illinois, Lyndon has received jury verdicts on behalf of both plaintiffs and defendants. He has also argued multiple cases before the United States Courts of Appeal for the Seventh and Eighth Circuits, as well as the Illinois Appellate Court and Missouri Court of Appeals.
American Association of Attorneys - Certified Public Accountants
Missouri Society of Certified Public Accountants
J.D., Southern Illinois University School of Law
Served as the Editor in Chief of the Southern Illinois University Law Journal.
M.S. in Accountancy, Southern Illinois University - Carbondale
B.S. in Accounting, Southern Illinois University - Carbondale
Registered Certified Public Accountant, Illinois
“Do You Believe in Miracles? The Road to Pre-suit Resolution of High Exposure Claims,” The Network of Trial Law Firms CLE Program
“Taking a Bad Faith Detour,” The Trial Network
Before he began practicing law, Lyndon authored numerous tax articles which were published in legal and accounting journals. In addition, he wrote the first chapter of a book entitled, “How to Deal with the IRS.”