P. Michael Campbell

Brent A. Sumner is the Managing Partner at Sumner Law Group, LLC. He focuses his practice exclusively on cases that involve serious personal injuries. Over the years, he has successfully represented thousands of individuals and families, recovering millions of dollars in compensation for injured accident victims. As an experienced litigator, Brent stresses how important it is to have an attorney who is prepared to go to trial in a serious personal injury case. Insurance companies need to know...

Korissa M. Zickrick is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation - Defendants. Korissa M., who practices law in St. Louis, Missouri, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Korissa M. is held by other top lawyers in the same geographic and legal practice area.

Jeffrey Dunn is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Medical Malpractice Law - Defendants and Personal Injury Litigation - Defendants. Jeffrey, who practices law in St. Louis, Missouri, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey is held by other top lawyers in the same geographic and legal practice area.

Gretchen Garrison graduated from the University of Missouri in 1982 with a degree in Hospital Administration. She earned her law degree from the University of Missouri-Kansas City in 1986, where she served as managing editor of the UMKC Law Reviewand on the Moot Court Board. Ms. Garrison is admitted to practice before all Missouri state courts, the U.S. District Court for the Eastern District of Missouri and the Eighth Circuit Court of Appeals. She has appeared before every appellate court in...

A former federal prosecutor with extensive investigation and first chair trial experience, Michelle Nasser focuses her practice on white collar criminal defense, internal and government investigations, and complex litigation. Before joining the firm, Michelle served for more than 13 years as an assistant U.S. attorney in the Major Case, Financial Crimes, General Crimes, and Violent Crimes sections of the U.S. Attorney’s Office in Chicago. She led and supervised government investigations...

John Young is a distinguished legal professional with over two decades of unparalleled experience representing municipalities, other political subdivisions, businesses and members of the development community. With a proven track record of success and a deep understanding of the intricate world of municipal law, John is a trusted advisor. John embarked on his legal career with a commitment to serving the interests of state and local governments and other political subdivisions. As the City At...

Jonathan Marks , Family Law Attorney in the St. Louis area, received his Juris Doctorate in 1997 from the University of Missouri – Columbia. Jonathan is admitted to practice in the State of Missouri, the State of Illinois, the United States District Court for the Eastern District of Missouri, the United States District Court for the Western District of Missouri, the United States District Court for the Southern District of Illinois, the United States District Court for the Central Distr...

Mark R. Sanders is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Trusts and Estates. Mark R., who practices law in St. Louis, Missouri, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark R. is held by other top lawyers in the same geographic and legal practice area.

Keith D. Price is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Keith D., who practices law in St. Louis, Missouri, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Keith D. is held by other top lawyers in the same geographic and legal practice area.

Litigator James G. Martin defends corporations and individuals facing high-stakes, complex business lawsuits, white collar criminal charges, and allegations of corporate governance and compliance violations. A former U.S. attorney for the Eastern District of Missouri, Jim is regularly lead defense counsel in class action and civil litigation matters, including SEC fraud and healthcare fraud in False Claims Act (FCA) litigation. Corporations also call on him to lead internal investigations rel...