Gregg S. Greenfield

Greg Wheeler grew up in Sioux Falls, South Dakota and graduated from Washington High School. Greg obtained a degree from the University of South Dakota and graduated from law school at the University of Nebraska. In 1992, Greg began his litigation career with a litigation firm in Atlanta, Georgia, where he practiced for 22 years before he and his family returned to Sioux Falls and he joined the Boyce Law Firm. Greg has more than 28 years experience as a litigator and has significant experienc...

Michael F. Tobin was raised in Aberdeen, South Dakota. His father, Tom, practiced law in Aberdeen for decades, instilling in Michael from his earliest years a passion for education and the law. Michael graduated from Roncalli High School in 1994 and spent much of his youth playing hockey, tennis and football. Michael attended the University of Notre Dame and graduated with honors with degrees in American History and Government. Michael returned to South Dakota and attended the University of S...

Lisa Marso is a partner in our litigation section, with a primary focus in employment law, governmental law, and life/health/disability law. She serves as the City Attorney for Brandon, South Dakota, and Attorney for Split Rock Township. Her clients also include both the small employer as well as those who employ thousands of employees. Clients represented include banks, cities and counties, manufacturers, insurance companies, franchisors, and health care providers. Lisa has particular employ...

Roger Sudbeck grew up in Yankton, South Dakota and attended South Dakota State University, graduating in 1990 with a degree in economics with high honors. From there, he attended law school at the University of Nebraska where he graduated with distinction in 1993. That same year, he joined the Boyce Law Firm and has practiced with the firm ever since. Roger was named partner in 1999. He handles a broad range of civil litigation, including medical malpractice, construction defects, products li...

Brian K. Kirby is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law and Trusts and Estates. Brian K., who practices law in Sioux Falls, South Dakota, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian K. is held by other top lawyers in the same geographic and legal practice area.

Charlie is originally from Harrisburg, South Dakota. He attended Southwest Minnesota State University for his undergraduate degree, and the University of Nebraska School of Law. He is married with three children, who keep him busy day and night. He is a avid sports fan and loves watching and participating in anything competitive. Charlie loves the practice of law, primarily because of the people he works with. He has devoted himself to the workers’ compensation field since he began prac...

Jason is an experienced partner in the Firm’s litigation practice who practices in a wide-range of areas. Jason represents individuals and corporations in a several different areas of the law. Since joining the Firm in 2007, Jason has tried several cases, including acting as lead counsel in both jury trials and court trials. He has personally taken and defended over 200 depositions, and he has managed the discovery in a successful, complex arbitration that involved over 70,000 pages of ...

Paul primarily focuses his practice in the areas of construction, land use, and creditor’s rights. Paul has brought and defended claims involving a list of issues including construction contracts, construction defects, mechanics’ liens, public improvement liens, payment disputes, and zoning and ordinance disputes. Although Paul represents a wide array of clients in commercial transactions and disputes, the primary focus of his practice is the construction industry where Paul has b...

Laura grew up in Sioux Falls and graduated on the Dean’s List from Augustana University in 2005 with a Bachelor of Arts in Government & International Affairs where she played basketball for the Vikings all four years. Following undergraduate studies, Laura attended Creighton University School of Law, graduating cum laude in 2005. Laura believes that the most enjoyable part of practicing law is the relationships she develops with her clients. Because of this, Laura focuses on operati...

Josh Brown has been licensed to practice law for over ten years. He was raised in Flandreau, South Dakota and holds a Bachelor of Arts in sociology and criminal justice from South Dakota State University, a Juris Doctorate from the University of South Dakota, and a LL.M. in taxation from the University of Denver Sturm College of Law. He joined Boyce Law Firm as a partner in 2023 and is a member of its business section. He specializes in business and tax law, real estate, and trusts and estate...