Atty. Mark Thiel Steffan
Mark Thiel Steffan is a lawyer practicing family law, real estate, wills and 34 other areas of law. Mark received a B.A. degree from Minnesota State University in 1979, and has been licensed for 38 years.
Family Law & More Attorney · Serving Sioux Falls, SD · 38+ Years Experience
Profile Summary
About Mark Thiel Steffan at a Glance
Mark Thiel Steffan is a Member based in Sioux Falls, South Dakota, practicing at Steffan Law Office, PLLC. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on dui/dwi, divorce, wills, chapter 7, and child custody. Admitted to practice in Minnesota (1988), U.S. District Court, District of Minnesota (1989), and South Dakota (2005). Educated at University of Minnesota, Minneapolis (J.D., 1987) and Minnesota State University (B.A. Psychology, 1979). Recognitions include Peer Reviewed. Serves clients in Sioux Falls, SD and the surrounding metropolitan area.
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About Mark Thiel Steffan
- Mark Thiel Steffan is a lawyer practicing family law, real estate, wills and 34 other areas of law
- Mark received a B.A. degree from Minnesota State University in 1979, and has been licensed for 38 years
- Mark practices at Steffan Law Office, PLLC in Sioux Falls, SD
Practice Areas Explained
Mark Thiel Steffan's Areas of Legal Practice
Each practice area below reflects the types of cases Mark Thiel Steffan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Sioux Falls.
DUI / DWI Defense in Sioux Falls
Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.
Mark Thiel Steffan is one of 29,739 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in South Dakota →
Divorce in Sioux Falls
A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.
Mark Thiel Steffan is one of 50,071 divorce attorneys indexed nationally. Browse divorce attorneys in South Dakota →
Wills in Sioux Falls
Mark Thiel Steffan is one of 34,363 wills attorneys indexed nationally. Browse wills attorneys in South Dakota →
Chapter 7 Bankruptcy in Sioux Falls
Mark Thiel Steffan is one of 8,822 chapter 7 attorneys indexed nationally. Browse chapter 7 attorneys in South Dakota →
Child Custody & Visitation in Sioux Falls
Mark Thiel Steffan is one of 30,982 child custody attorneys indexed nationally. Browse child custody attorneys in South Dakota →
Jurisdictional Context
Why Local Counsel Matters in Sioux Falls
Practicing law in South Dakota. Legal matters in South Dakota are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Sioux Falls are typically filed in the local municipal court or the appropriate South Dakota state district court, depending on subject matter and amount in controversy. An attorney licensed in South Dakota brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in South Dakota courts without local counsel or pro hac vice admission.
Sioux Falls Courts and Legal Process
Choosing a Sioux Falls-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional South Dakota attorneys? Browse all attorneys in Sioux Falls or all attorneys in South Dakota.
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Professional Profile
Why Clients in Sioux Falls Choose Mark Thiel Steffan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark Thiel Steffan's practice in the field of dui/dwi, divorce, wills, chapter 7, and child custody.
Decade-Tested Legal Experience
Mark Thiel Steffan brings 38+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Minnesota, U.S. District Court, District of Minnesota, and South Dakota, Mark Thiel Steffan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering dui/dwi, divorce, and wills, Mark Thiel Steffan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Sioux Falls
A Sioux Falls-based practice means Mark Thiel Steffan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Search Reference
How People Find Mark Thiel Steffan Online
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Mark Thiel Steffan's Practice Areas & Specializations
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