Thompson Law, PLLC

Verified

Estate planning attorney

4.6(26 Google reviews)

5027 S Western Ave, Sioux Falls, SD 57108, United States

Information last updated October 7, 2026

Practice Areas

Tax Law Business Law Estate Planning

About Thompson Law, PLLC

Thompson Law, PLLC is an estate and business planning firm established in 2003. The firm serves individuals, families, farmers, ranchers, and business owners across the Midwest, with attorneys licensed in South Dakota, North Dakota, Minnesota, Iowa, and Nebraska. On July 1, 2026, Thompson Law merged with German Law of Grand Forks, ND, and now operates under the Thompson Law name with offices in Sioux Falls, SD, and Grand Forks, ND.

The firm's mission is to help families protect their assets, plan for the future, and preserve their legacy for subsequent generations. Thompson Law's attorneys address a diverse range of client needs, from basic estate plans to intricate business and farm succession strategies, Medicaid and long-term care planning, and advanced estate and trust planning for substantial assets. The firm focuses on understanding each client's unique circumstances and objectives to develop customized legal solutions.

Key practice areas include:

Estate Planning
Asset Protection and Business Planning
Elder Law and Medicaid
Special Needs Planning
Legacy Planning
Incapacity Planning
IRA and Retirement Planning
Family-Owned Businesses and Farms
Trust Administration and Probate

From the firm’s website

Attorneys: Clint Fischer — Managing Attorney
Andrew Knutson — Attorney
Ray German — Attorney
Doug Thesenvitz — Attorney
Tom Simmons — Attorney
Sara Anderson — Attorney
Ryder Fuhrman — Attorney
Taylor Bonestroo — Attorney
Reganne Ritterman — Attorney
Services listed: Asset Protection and Business Planning, Elder Law and Medicaid, Estate Planning, Family-Owned Businesses and Farms, Financial Planning Assistance, Incapacity Planning, IRA and Retirement Planning, Legacy Planning, Pet Planning, Special Needs Planning, Trust Administration and Probate
Founded: 2003
Offices: 5027 S. Western Avenue Sioux Falls, SD 57108
1726 S Washington St #33A Grand Forks, ND 58201

Source: cathompsonlaw.com · checked October 7, 2026. Lawyers Near Me hasn’t independently verified these details.

Hours of Operation

Monday: 8:30 am–5 pm
Tuesday: 8:30 am–5 pm
Wednesday: 8:30 am–5 pm
Thursday: 8:30 am–5 pm
Friday: 8:30 am–12 pm
Saturday: Closed
Sunday: Closed

Photos

Details & Amenities

Service options

Online appointmentsOn-site services

Highlights

LGBTQ+ friendlyAppointment required

Accessibility

Wheelchair-accessible car parkWheelchair-accessible entranceWheelchair-accessible seatingWheelchair-accessible toilet

Amenities

ToiletFree of charge street parkingFree parking lotOn-site parking

Thompson Law, PLLC — Frequently Asked Questions

Where is Thompson Law, PLLC located?+

Thompson Law, PLLC is located at 5027 S Western Ave, Sioux Falls, SD 57108, United States. Use the "Get Directions" link on this page to navigate there.

What kind of cases does Thompson Law, PLLC handle?+

Thompson Law, PLLC handles Tax Law, Business Law, Estate Planning. Confirm that they cover your specific legal matter during your first consultation.

How do I contact Thompson Law, PLLC?+

Call Thompson Law, PLLC at +1 605-362-9100 or visit their website. Many firms offer a free or low-cost initial consultation.

Is Thompson Law, PLLC well rated?+

Thompson Law, PLLC has a 4.6-star rating based on 26 Google reviews. Ratings are sourced from Google and shown for reference.

Client Reviews

8 reviews

raymond german· via Google
Clint Fischer of the Thompson Law firm is an excellent presenter for farm succession planning. I have worked with Thompson Law for over 15 years and have found them to be professional, knowledgeable and cordial. Ray German
10 months ago
Ryan Weinkauf· via Google
Clint and the entire staff were easy to work with and very thorough setting up my trust.
6 months ago
Rita Miller· via Google
Thompson Law provided an excellent experience for us while preparing our living trust. Andrew Knutson is a very knowledgeable attorney-at-law and his expertise concerning trusts was certainly appreciated. He is very personable and answered all of our questions. Dennis and Rita Miller
10 months ago
Melissa Bissell· via Google
Thompson Law /Attorney Doug****was hired to draw up a WILL and TODD for a parent. Doug*** prepared both the WILL and TODD to be signed . Doug had the WILL signed but neglected to have the TODD signed , nor did he update the WILL to show the now deceased last wishes and goals. Dougs negligence and breach of contract (what was hired to do) has caused extreme loss , debt, estate property, real estate ETC...The negligence and failure to honor the decedent's last wishes and goals should never ever cause the amount of loss as it has from a parent passing away!
10 months ago
Pam Miller· via Google
Our experience with Clint at Thompson Law was amazing. We were made aware of all our many options when preparing our trust. When we finished we were 100% confident it was what we wanted.
3 months ago
Sara Johnson· via Google
Working with Thompson Law was seamless, thorough, and very professional. They answered all our questions and were very knowledgeable about our ranch and farming situation. We are grateful for their expertise. My husband and I highly recommend their estate services!
5 months ago
Bj Curtis· via Google
My wife and I recently worked with Thompson Law to set up our estate plan, and we had a great experience from start to finish. The entire team was professional, knowledgeable, and very easy to work with. They took the time to clearly explain everything in a way that was easy to understand, which made the process much less overwhelming. The staff was friendly and made us feel comfortable throughout the process, and we now have real confidence and peace of mind knowing our estate plan is in place. We would highly recommend Thompson Law to anyone looking for estate planning services.
4 months ago
Melissa Palmquist· via Google
Andrew and his team have been excellent to work with for our estate planning needs. They are professional, knowledgeable, and very responsive. After experiencing losses in our family, we worked with them to implement existing trusts and make important updates moving forward. They took the time to carefully review everything, answer our questions, and guide us through each step with clarity and care. Their attention to detail and supportive approach made a difficult process much easier. We highly recommend Andrew and his team for trusted estate planning services.
5 months ago

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