South Dakota Defense Attorney · Est. 2000
When your future is on the line, choose the lawyer who actually shows up.
Manny De Castro has spent over 20 years defending South Dakotans in criminal and civil court. Direct, prepared, and relentless when it counts — in Sioux Falls, Madison, and across the state.
20+
Years in practice
30
Reported case opinions
2
South Dakota offices
100%
Direct attorney access
Why de Castro Law Office?
A practice built on preparation, not promises.
Choosing the right attorney is the most important decision you'll make in your case. Here's what sets this firm apart — and why clients across South Dakota trust Manny with their future.
Trial-Tested
Two decades of South Dakota courtroom experience — from misdemeanors to federal felonies and Supreme Court appeals.
Personal Attention
You work closely with Manny and the support staff who help guide your case from start to finish — a team approach that keeps you informed and supported.
Strategic Defense
Every case is a different fight. We build the legal strategy around your facts, not a template.
Reported Wins
Multiple cases reported in South Dakota Supreme Court and federal court opinions. Results that matter.
Sioux Falls & Madison Defense Attorney · Practice Areas
South Dakota criminal defense and civil litigation. Deep expertise in each.
Meet Your Attorney
Manuel J. De Castro, Jr.
A South Dakota lawyer like no other.
Manny DeCastro graduated from the University of South Dakota School of Law in 2000 and was admitted to the South Dakota Bar in 2001. From the start, his practice has been built around direct, personal representation — not a volume model where cases are handed off to associates or staff.
He has spent his career inside South Dakota courtrooms at every level, from local misdemeanor matters to serious felony jury trials and appeals. Clients meet with him directly, and every file is prepared with the same focused attention — whether it is a first-time DWI, a complex civil dispute, or a federal indictment.
What clients say
Quiet wins. Loud impact.
"Manny took my case seriously from the first call. He prepared me, fought for me, and got the outcome I needed."
"Straightforward, no nonsense, and incredibly knowledgeable. He explained every option and let me make the decision."
"I interviewed three attorneys. Manny was the only one who treated me like a person and gave me a real plan."
Talk through your case
When the stakes are this high, you deserve the right attorney.
Most consultations are free. Same-day appointments when we have them. Direct line to the attorney handling your case — not a switchboard.