Spencer L. Mammen

Spencer L. Mammen is an Associate Attorney at SWH Law in St. Joseph, Missouri. His legal field is catastrophic injury and wrongful death, and his practice includes personal injury and product liability matters. He represents people whose claims arise from serious injuries and defective products, working within a litigation practice focused on harm caused by negligence. His responsibilities build on years of progressive experience in legal support and attorney roles within the same professional environment.

Spencer earned a J.D., cum laude, from the University of Missouri-Kansas City in 2023. He received a Master’s in Legal Studies from Washington University in St. Louis in 2020 and a B.A. in Political Science from the University of Missouri in 2016. He clerked for Stephen W. Holaday during law school. His education, combined with earlier employment as a legal assistant and paralegal, supports his work in personal injury and product liability litigation.

Spencer has worked in personal injury and product liability since completing law school and becoming licensed. His current work centers on catastrophic injury and wrongful death matters, which can require careful development of liability facts, injury evidence, product issues, and damages. His earlier experience as a legal assistant and paralegal gives him familiarity with case organization and litigation support in addition to the responsibilities he now carries as an attorney handling injury claims.

Spencer L. Mammen brings a career path that developed from legal support work into active attorney practice. His experience at SWH Law includes personal injury, product liability, catastrophic injury, and wrongful death matters, with a professional background rooted in the practical demands of litigation. He works with clients facing serious consequences from injuries and supports cases through detailed preparation, factual development, and the legal analysis required to pursue accountability and compensation.

Law Office Affiliations

• Attorney, Law Office of Stephen W. Holaday, PC
• Member, The Missouri Bar
• Member, Kansas City Metropolitan Bar Association
• Member, St. Joseph Bar Association

Licensed State

• Missouri

Education

• University of Missouri-Kansas City
  Juris Doctor (JD) (Cum Laude)
• Washington University in St. Louis
  Master’s in Legal Studies
• University of Missouri
  Bachelor of Arts (BA) in Political Science

Awards & Badges