Profile
Aggressive Criminal Defense and Personal Injury Representation
Walter Law Office is a family-owned and operated law firm in Sioux Falls, South Dakota, providing robust legal defense to individuals facing criminal charges and personal injury claims. The firm is led by the father-son team of D. Sonny Walter and Max J. Walter, who bring a combined wealth of experience and a shared commitment to justice. Since its founding, the firm has built a reputation for being tough, prepared, and relentlessly focused on protecting the rights of their clients. They understand that facing a criminal charge or recovering from an accident can be the most stressful experience of a person’s life, and they dedicate themselves to shouldering that burden.
The attorneys at Walter Law Office believe that everyone deserves a vigorous defense, regardless of the accusations against them. They approach every case with a non-judgmental attitude and a determination to achieve the best possible outcome, whether that means negotiating a favorable plea deal or fighting for a verdict at trial. Their deep roots in the Sioux Falls legal community give them valuable insight into local court procedures and the tendencies of area prosecutors and judges.
Areas of Trial Practice
Walter Law Office specializes in high-stakes litigation areas:
- Criminal Defense: Defending clients against a wide spectrum of charges, including assault, theft, and domestic violence. The firm is known for its proactive approach to investigation and evidence challenge.
- DUI/DWI Defense: Providing specialized representation for individuals accused of driving under the influence, working to minimize penalties and protect driving privileges.
- Drug Crimes: Representing clients facing possession, distribution, or manufacturing charges, often challenging the legality of search and seizure operations.
- Personal Injury: Advocating for victims of car accidents, slip and falls, and other negligence-based incidents to secure fair compensation for medical bills and suffering.
- Traffic Violations: Assisting drivers in contesting tickets to keep their records clean and insurance rates low.
Trusted Legal Advocates
Located in downtown Sioux Falls, Walter Law Office is situated in the heart of the legal district, just blocks from the Minnehaha County Courthouse. This proximity allows for swift action in urgent matters. The firm offers free initial consultations, giving potential clients the opportunity to discuss their case directly with an attorney without financial obligation. D. Sonny Walter’s decades of experience combined with Max Walter’s fresh perspective create a dynamic defense team that is well-equipped to handle the challenges of modern litigation.
Specializing In
DUI Defense, Drug Crimes, Assault Defense, Personal Injury, Traffic Violations
Address & Location
Walter Law Office is centrally located at 335 N Main Ave, Suite 230, in downtown Sioux Falls.
Building Location
The office is housed in a multi-story professional building on the west side of North Main Avenue. It is located directly across from the historic Old Courthouse Museum and just a few blocks from the Minnehaha County Jail.
Suite Access
Clients can access the office via the main lobby elevator to the 2nd floor.
Parking Details
Metered street parking is available along Main Avenue and surrounding downtown streets. Public parking ramps are also nearby.
Public Transit
The office is highly accessible via Sioux Area Metro (SAM), with the main downtown bus depot located within walking distance.
Map
Sorry, no records were found. Please adjust your search criteria and try again.
Sorry, unable to load the Maps API.




