Sioux Falls Will Contest & Estate Litigation

What happens if a loved one’s will or trust is the product of undue influence or diminished capacity? What if the document does not adhere to South Dakota or Iowa law? What if you believe the will or trust was not executed properly?

Home Will/Estate Litigation

What Is Estate Litigation?

Estate litigation arises when a will or trust is challenged because of undue influence, diminished mental capacity, improper execution, or a failure to follow South Dakota or Iowa law. These disputes can be confusing and emotionally difficult, which is why it's critical to understand your legal options early.

Common Grounds for Contesting a Will or Trust

Estate litigation cases are often complicated. You may need to challenge a document because the person who created it had a mental impairment, was coerced by another party, or because the executor or beneficiary exerted undue influence. Proving these claims typically requires medical records and other supporting documentation — our attorneys know how to gather and review this evidence effectively.

Types of Estate Litigation Cases We Handle

  • Contested wills
  • Contested estates
  • Improperly executed wills or trusts
  • Forged documents
  • Breach of fiduciary duty

Reasons to Contest a Will or Trust

We provide sound legal counsel for clients who need to contest a will, trust, living will, or other testamentary document. Common reasons include:

Undue Influence

If someone pressured a loved one to draft or change a will, you may have grounds to legally contest it.

Unsound Mind

You may have a legitimate lack-of-capacity case if your loved one was of unsound mind when drafting or changing the will — for example, due to Alzheimer's, dementia, or senility.

Forged Wills

A will may be contested if the signature was forged, if it was written by someone other than the stated author, or if it was amended without the knowledge of the person who wrote it.

Invalid Signatures

A valid will requires proper signatures from the person who created it and the required witnesses. Forged or missing signatures can be grounds to contest a will for lack of valid execution.

Lack of Approval

If the person signing the will did not know the document was a will, it could be declared invalid. These claims can be difficult to prove, which is why experienced legal guidance matters.

Professional Negligence

If the attorney who drafted the will made a clerical error or lacked a proper understanding of estate planning law, the will could be contested on that basis.

How Our Sioux Falls Estate Litigation Attorneys Can Help

We understand how emotionally charged inheritance disputes can be for families. We provide personal attention, take the time to understand your needs, and work to protect your legal rights and assets by:

  • Resolving disagreements over a will, trust, or other testamentary document
  • Resolving disputes in probate
  • Disputing will contests
  • Negotiating and discussing how the estate has been handled
  • Working out ambiguities in estate documents
  • Removing an executor or trustee, or defending against removal
  • Contesting guardianship matters
  • Handling creditor claims against the decedent and the estate
  • Moving estate administration forward in a timely manner
  • Representing you in probate and asset administration if the decedent died without a will

Many lawyers avoid complicated will and trust litigation. We don't. Contact our law firm today to find out how we can help.

Latest Articles from Northern Plains Justice

Helpful legal information for injured people and families across South Dakota.

Sioux Falls personal injury lawyer
Personal Injury
Sioux Falls Personal Injury Lawyer
Learn how Northern Plains Justice helps injured South Dakotans pursue full and fair compensation.
Read Article →
The Hidden Dangers of Representing Yourself in a Personal Injury Claim Using AI
AI & Law
The Hidden Dangers of Representing Yourself in a Personal Injury Claim Using AI
More injury victims are turning to AI tools to handle their own claims — here's why that can seriously backfire.
Read Article →
Sioux Falls motorcycle accident lawyer
Motorcycle Accidents
Common Causes of Motorcycle Accidents in South Dakota
Understand the crash factors, insurance issues, and legal rights injured motorcyclists should know.
Read Article →

Free Legal Guides from Northern Plains Justice

Written by our attorneys — practical knowledge to help you understand your rights

After the Crash
Free Ebook · Personal Injury
After the Crash
Attorney William D. Sims

A step-by-step guide to navigating a South Dakota car accident — from the scene to settlement. Written by attorney Bill Sims, this book tells you what insurance companies don't want you to know.

Car accidents Insurance claims Medical treatment Settlement tips Finding a lawyer
✓ Your ebook is open!
Please enter a valid email address.

🔒 We'll send a copy to your inbox too.

True Intent
Free Ebook · Estate Law
True Intent
Attorney Jeff Cole

Everything you need to know about South Dakota Will Contests — from red flags of undue influence to how to find the right attorney. Written by attorney Jeff Cole with decades of trial experience.

Will contests Undue influence Estate fraud Power of attorney South Dakota law
✓ Your ebook is open!
Please enter a valid email address.

🔒 We'll send a copy to your inbox too.

Free Consultation

Injured in South Dakota? Tell Us What Happened.

Northern Plains Justice, LLP helps injury victims and families after serious accidents. Send a confidential message and our team will review your information.

No Fee Unless We Win South Dakota Injury Lawyers Call (605) 306-4100

Your information is confidential and never shared.