Our Team


Lee Schoenbeck


Lee is certified as a Civil Trial Specialist by the National Board of Trial Advocacy. Less than ten attorneys in South Dakota have achieved this designation. To be certified in this specialty, the attorney must meet rigorous requirements for jury trial experience, pass a written exam, and pass a peer review, which is done by confidential references from other attorneys and from judges within the state.

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Lee grew up in Webster, South Dakota. He practices primarily in the areas of personal injury litigation, insurance litigation, commercial litigation, estate planning litigation, and professional negligence. In May of 2012, in an insurance company bad faith case, Lee obtained a $2.4 million verdict against Nationwide Insurance from a Day County jury. In 1997, in an insurance fraud case, Lee obtained a verdict of $559,507.20 from a Roberts County jury. In 1998, in an underinsurance suit, Lee obtained a verdict of $600,000 from a Marshall County jury. All three verdicts were the largest in the history of each county.

Lee Schoenbeck is a Civil Trial Specialist Certified by the National Board of Trial AdvocacyLee is a 1980 Augustana College graduate and a 1984 graduate of the University of South Dakota School of Law. He was the State’s Attorney for Day County from 1985-1989. In 1995, Lee was elected to a two-year term in the State Senate representing three and one-half counties in northeastern South Dakota. Lee also represented Watertown in the South Dakota State Senate from 2003 through 2006, serving as a leader of the State Senate the last two years. More recently, Lee has represented Watertown in the House of Representatives (2015-2016) and will start a new term in the State Senate in 2019.

Lee is licensed to practice law in the State of South Dakota, the Federal District Court for the District of South Dakota, the Eighth Circuit Court of Appeals, and the Sisseton Wahpeton Oyate Tribal Court. He is a member of the South Dakota Trial Lawyers Association (SDTLA) and the American Association for Justice (AAJ).

Lee is active in the Catholic Church. He serves as Chairman of the Catholic Community Foundation for Eastern South Dakota, and Treasurer of the Immaculate Conception School Foundation Board. He also is involved with many outdoors and conservation groups and is an avid pheasant hunter.

Lee is a regular guest lecturer for the Insurance Law class at the University of South Dakota School of Law. His lectures focus on the intricacies of insurance litigation, and how to prepare and handle those cases.


Joe Erickson


Joe grew up and graduated from high school in Dell Rapids, South Dakota. After receiving his undergraduate degree at the University of South Dakota’s Beacom School of Business in 2014, Joe continued his education in Vermillion and graduated from the University of South Dakota School of Law with honors in 2017. While in law school, Joe was a member of the Moot Court Board, participated on the Trial Team, and was the treasurer of the Student Bar Association.

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After completing law school, Joe served as a law clerk for the First Judicial Circuit of the State of South Dakota. Primarily working from Yankton, South Dakota, the clerkship was a great tool for Joe to expand his knowledge of the law, trial advocacy, and the workings of the judiciary.

Following his clerkship, Joe, his wife, Sara, and their baby boy, Harvey, moved to Watertown. Shortly after the move, Joe began as an associate attorney at Schoenbeck Law.

Joe is admitted to practice law in South Dakota and his law practice will focus on personal injury litigation, insurance litigation, commercial litigation, estate planning litigation, professional negligence litigation, and real estate transactions.

Joe enjoys all of South Dakota’s outdoor activities, including pheasant hunting with his dog June, deer hunting, golfing, and fishing local lakes and the Missouri River.

Joe and his family are very thankful to the Watertown community and the welcoming nature of everyone they have met. They look forward to being active in the community and joining local organizations that contribute to Watertown’s success.


Karen J. Armstrong, PP, PLS


After graduating from Webster High School and the legal secretarial program at Watertown Business University, Karen moved to Minneapolis. For the next two decades, she worked at three downtown law firms: Ogurak Law Office; Hvass, Weisman & King, Chartered; and Schwebel, Goetz & Sieben, P.A.

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After her father’s death in 1995, Karen moved back to Webster in 1996 to be near her mother. She worked at Schoenbeck Law from 1996 to 2004 as a legal secretary. In 2004, Karen moved to Belle Fourche, South Dakota, and worked at the Barker Wilson Law Firm. While there, she obtained her Professional Legal Secretary and Professional Paralegal certifications from NALS. In 2007, Karen moved back to the Webster area and worked at Consolidated Power Producers, Inc., and Dakotacare before returning to Schoenbeck Law in 2010. Karen and her family moved to Watertown in 2012.

Karen is a member of the South Dakota Paralegal Association and has served on the Newsletter Committee since 2013. Karen was nominated by her peers to receive the 2013/2014 SDPA Member of the Year award.

Karen is married and has one daughter, one stepdaughter, one stepson, six grandchildren, and one great granddaughter. In her spare time, she enjoys quilting, gardening, camping, and reading.


Jennifer X. Frederick, CP


Jen graduated from SDSU in 2001 with a Bachelor’s Degree in Sociology. She spent over twelve years with Spears Law Office, PC, during which she earned the “Certified Paralegal” designation from NALA, and assisted with a successful circuit judge campaign.  In 2015, she worked a short time at the Law Office of Ronald Frauenshuh, before accepting a position with Schoenbeck Law, PC, where she works mainly on issues involving commercial, insurance, and estate disputes.

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Jen joined the South Dakota Paralegal Association (SDPA) in 2007, and was an inaugural member of SDPA’s 360⁰ Leadership Academy.  In 2011, Jen was awarded by her peers with the SDPA Outstanding Member of the Year, and she has remained active in the association, serving as President and on various committees.  Jen enjoys writing and has authored several legal articles for publication in SDPA’s newsletter, the Reporter.

Away from the office, you’ll find Jen and her husband, Mark, RVing and gardening in the summer, doing DIY projects, and spending time with their daughter, son-in-law, and grandson.


Donna Schoenbeck

Office Manager

Donna started at Schoenbeck Law, PC, in December of 2006 as the office manager.

Originally from Watertown, she graduated from Northern State University with a bachelor’s degree in elementary education. Back in her hometown, she is involved in many community activities and is an active member of the Coteau Prairie Master Gardeners.

Donna and her husband, Lee, have four grown children that they enjoy visiting and traveling with. In her free time, Donna enjoys gardening, hiking in the Black Hills, reading, and traveling to new places—near and far.