Joshua D. Zellmer

MANAGING Partner

About Joshua D. Zellmer

With more than 16 years of legal experience,
Joshua (Josh) Zellmer enjoys a diverse and fast-paced practice. Josh is a partner of Myers Billion, LLP and enjoys the cohesive atmosphere and solutions-based focus of the firm. He prides himself on being responsive to his clients’ needs and providing legal advice specific to each client’s unique circumstances.

Josh’s practice focuses primarily on litigation matters in the areas of complex divorce law, commercial law, and general civil ligation. Josh has extensive trial and litigation experience in state and federal courts throughout South Dakota. His family law practice focuses on complex/high asset divorce actions often involving high incomes, businesses, and/or real estate. His litigation practice includes actions involving breach of contract, fraud, construction, real estate disputes, and tort actions. Josh also assists clients with transactional matters, including business formation, commercial leases, asset purchases, and real estate purchases. Josh’s practice extends throughout South Dakota having represented clients in every circuit.

Josh was given an “AV” rating from his peers, which means that he was deemed to have very high professional ethics and preeminent legal ability. Only lawyers with the highest level of professional ability and ethical standards receive an AV Preeminent Rating from Martindale-Hubbell.

Josh began his legal career as a law clerk for the Sixth Judicial Circuit of South Dakota in Pierre, where he grew up. Prior to joining Myers Billion, LLP, Josh worked as a criminal prosecutor in the Rapid City area prosecuting all levels of offenses. These years in the courtroom allowed Josh to hone his trial and litigation skills.

Josh is an active member of his community and volunteers his time with Junior Achievement of South Dakota, Lutheran Social Services, the ELCA of South Dakota, and the Ask-a-Lawyer program. Josh is a Board Member for the SD Services for the Deaf Foundation. He served as the President of St. Mark’s Lutheran Church in Sioux Falls in 2021 and Vice President in 2020. He is also a 2016 graduate of Leadership South Dakota.

Josh serves on the Family Law Committee and Judicial Liaison Committee for the South Dakota State Bar Association and is a member of the South Dakota Trial Lawyer’s Association. Josh was a 2024 recipient of the Toast of Trial Lawyers Award from the South Dakota Trial Lawyers Association.

In his free time, Josh enjoys spending time with his wife, their three children, and the couple’s large extended families. Josh is an avid hunter and golfer and generally enjoys being outdoors.

“Mr. Zellmer was hired in the middle of my custody situation and clearly advocated my position and we were able to achieve the best possible result. Mr. Zellmer is very prepared and recommends the best option for you, not what will rack up the most hours for him to charge. Extremely glad I chose Mr. Zellmer as counsel.” - Anonymous Family Law Client

“After going through 2 other attorneys and years of a very stressful family matter, I decided to hire Josh and I’m so glad I did. He won my case & never wasted a second of my time. Hands down best attorney in Sioux Falls.” - Anonymous Family Law Client

Josh Zellmer did an amazing job for me. I was going through a divorce with a different lawyer from a different firm and she was getting my case nowhere. I could tell I was losing the battle and all she wanted to do was go to trial. I did not want to go to trial and I did not want to lose this case so I hired Josh Zellmer. I heard great things about him and was so very glad I changed lawyers and hired him. He worked hard to connect with the opposing lawyer and worked hard to get my divorce resolved with no trial and the settlement was way better than I could have dreamed of. I can't say enough about the great job Josh did. I owe him big time!! - Craig, Family Law Client