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Jonathan Marks

The Marks Law Firm, LLC


Jonathan focuses his practice on a broad spectrum of family law litigation matters in both state and federal courts. He handles trials and appeals in cases involving divorce, high-asset divorce, child custody and visitation, support, property division and other matters. Having litigated numerous family law cases on behalf of individuals in the St. Louis and St. Charles communities, Mr. Marks is a Fellow of the Academy of Matrimonial Lawyers (AAML), is a Board Certified, Family Law Trial Advocate, By the National Board of Trial Advocacy (NBTA), and is a Fellow of the International Academy of Family Lawyers (IAFL).  Jonathan has been recognized by Best Lawyers in America since 2016 and was named Best Lawyers “Lawyer of the Year” for Family Law in 2023.  He has also been designated a St. Louis “Super Lawyer” since 2008 by Missouri/Kansas Super Lawyers, published by Thomson Reuters.  Since 2019, the same publication has listed him as one of the “Top 100 Lawyers” in Missouri and Kansas, and a “Top 50 St. Louis Super Lawyer”.