Maria Jimena Sánchez-Ley

Mr. Keller is a member in our wealth strategies and corporate practice areas. He concentrates his practice in estate planning, probate and general business, corporate law and succession planning. Mr. Keller is an adjunct professor at the Washington University School of Law in the Master's of Taxation Program where he teaches a class in business succession planning. Mr. Keller is a frequent lecturer and speaker on estate planning, business succession planning and tax issues. He has authored ar...

Trevor A. Sondag is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants and Product Liability Litigation - Defendants. Trevor A., who practices law in Belleville, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Trevor A. is held by other top lawyers in the same geographic and legal practice area.

Robert Brandt is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships) and Real Estate Law. Robert, who practices law in St. Louis, Missouri, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert is held by other top lawyers in the same geographic and legal practice area.

William S. Thomas is one of the firm’s many experienced trial lawyers. His practice is diverse, with an emphasis in complex litigation. He has tried cases in a number of difficult venues, from the City of St. Louis, Missouri, to Madison and St. Clair Counties, in Illinois, and Federal Court in East St. Louis and St. Louis. He was lead trial counsel in one of the longest civil jury trials in St. Louis County history, which lasted 100 trial days. In addition to his trial practice, Bill is...

Jonathan P. Soifer is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law, Litigation - Intellectual Property, Patent Law and Trademark Law. Jonathan P., who practices law in Clayton, Missouri, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan P. is held by other top lawyers in the same geographic and legal practice area.

Stephen Daiker focuses his practice on estate, gift and income tax planning for high net-worth individuals, charitable planned giving, and succession planning for owners of privately-held businesses. He is a frequent speaker on these topics and has written articles for numerous publications, including Taxation for Accountants, taxation for Lawyers, The Florida Bar Journal, The Journal of the Missouri Bar, The Journal of Financial Planning, and the Tax Management Journal of Estates, Gifts and ...

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...

Antoinette (Toni) Schlapprizzi is a trial lawyer at Schlapprizzi Attorneys at Law, licensed in Missouri and Illinois. She believes that every human being has a unique dignity that must be honored and respected, and through her work as a trial attorney, she aggressively defends and protects this unique dignity each and every day. Battling for truth on behalf of those who have survived serious injury and the loss of a loved one is at the core of who Toni is.

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.

Leonard J. Frankel is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law Mediation and Mediation. Leonard J., who practices law in Clayton, Missouri, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leonard J. is held by other top lawyers in the same geographic and legal practice area.