The DSM Law partnership was formed June 2016 through the merger of experienced local attorneys whose business experiences, shared values and perseverance created a platform to serve the community together.
We strive to provide resources and a broad set of services to individuals, families and small business owners. We are here to help you as life happens.
We value our client relationships and work hard to earn your loyalty every day. Each engagement benefits from the depth and breadth of our expertise. We stand proud that many of our clients have repeatedly turned to us for counsel and representation. We approach every client with a focus on integrity, advocacy, and understanding.
Rosanne M. Duane has practiced law for over twenty years in Palm Beach County, Florida, first with several national law firms and then in her own practice, Rosanne M. Duane, P.A., since January 2008. She has a law degree from Ohio State University and an LL.M. in Taxation from the University of Florida.
Rosanne has developed a sophisticated practice in which she has dealt with many complex and intricate issues for her clients. She has received several awards and recognitions for her professional accomplishments, including being named a Florida Super Lawyer 3 of 5 years. In 2012 Rosanne earned the Accredited Estate Planner (AEP) designation. Rosanne joined the Board of Trustees for Jupiter Medical Center in January 2016 and also continues as a member of the FAU Honors College Advisory Board. Her professional memberships include the Forum Club of the Palm Beaches, the Palm Beach County Estate Planning Council (past board member) and the Executive Women of the Palm Beaches (past Foundation Chair).
In her free time, Rosanne puts the same passion she applies to her law practice into diverse activities including traveling with her husband (especially to Italy), cooking, writing, reading, and running. Rosanne and her husband, Christopher, are also avid golfers. They were married at Lake Como, Italy, in 2014.
Rosanne M. Duane, Esq.
Kelly C. Sturmthal, Esq.
Kelly is truly a people person—and anyone who has met her knows that to be true. She genuinely enjoys meeting with clients, learning about their personal situations, and helping them address their estate and business planning needs. Her mission is simple and powerful: Protecting Your Family and Protecting Your Business.
Whether you are a local resident or a seasonal “snowbird,” Kelly can relate. Originally from Wall, New Jersey, she moved with her family to Jupiter, Florida in 1981. After graduating from Jupiter High School, Kelly earned a degree in Finance from the University of Central Florida and began her career with Barnett Bank, where she worked in multiple areas including banking and marketing. As a long-time Jupiter resident, she brings deep local knowledge and community insight to her clients.
Guiding others through planning has always been central to Kelly’s professional focus, which led her to pursue a law degree at the University of Miami. Since graduating, she has practiced in the areas of Wills, Estate Planning, Probate, and Small Business Planning, helping individuals and families plan with confidence and clarity.
- In 2002, Kelly and her husband returned to Jupiter to raise their children. She opened her legal practice, KellyEsq, collaborating with DSM Law and other seasoned attorneys to ensure each client’s plan is thorough, strategic, and well-coordinated.
- Through her consulting firm, Kelly’s Briefing Room, Kelly offers consulting services, programs, and unique membership options for military families. Her firm’s motto—“Where Legal Clarity Meets Military Heart”—reflects her deep commitment to those who serve.
- Kelly continues the legacy businesses she and her father started, along with several other ventures, including a family business consulting firm. Her father—an accomplished entrepreneur—remains a lasting inspiration, and the businesses they built together continue today. Drawing on both personal and professional experience, including blended family dynamics, Kelly guides clients through estate planning, probate, and business planning. As a CEPA (Certified Exit Planning Advisor), she also helps business owners navigate growth and exit strategies through the both Kelly’s Briefing Room and the Business Owners Council. Connect with Kelly today to get more information.
- Kelly is also a frequent speaker on Planning for Your Legacy and is available for speaking engagements at events and organizations.
Family is always part of the conversation with Kelly’s clients. She has been married for over 30 years to her husband, Jeff Sturmthal, a retired Air Force F-16 pilot and American Airlines pilot. They have two adult sons and a puppy named Bailey. Nicholas is a graduate of the University of Florida with a degree in Aerospace Engineering and a Masters of Science in Management. Alexander is a graduate of the U.S. Air Force Academy and an active-duty officer in the U.S. Air Force. Together, Jeff and Kelly enjoy volunteering with their church and local military organizations, aviation, race cars, and traveling.
Laura Mallard
Many clients first connect with Laura, DSM Law’s stellar Office Manager. With a strong background in project management, contracts, and customer service, Laura brings over 26 years of experience from Tuscan Harvey Estate Homes before joining DSM Law in 2017. She plays a key role in ensuring clients have everything they need to move confidently and smoothly through the planning process.
Laura and her husband, Collins, have lived in Jupiter for over 25 years. Born in New York and raised primarily in Broward County, Laura is a true South Florida local. She attended St. Thomas Aquinas and the University of Florida. Continuing the Gator legacy, their daughter Elizabeth is a graduate of Jupiter High School’s Medical Academy and is now a student and cheerleader at the University of Florida—Go Gators! Their son, Jonathan, currently attends Jupiter High School. Laura and Collins also volunteered with Bassett Rescue for 10 years, giving her plenty of pet stories to share.
In addition to her management expertise, Laura has a strong bookkeeping background and previously served as PTO Treasurer while her children attended Jupiter Farms Elementary. Outside the office, the Mallard family enjoys cheering on the Gators, spending time at the beach, volunteering at church, visiting their family pecan farm in North Carolina, and fully embracing the Jupiter lifestyle.