The most common grounds to contest a will under Oklahoma law are:
- Undue influence
- Lack of testamentary capacity
- Lack of testamentary formalities
- Duress, Menace, and Fraud
- Revocation
Contest a Will In Oklahoma Based On Undue Influence
"A will or part of a will procured to be made by duress, menace, fraud or undue influence, may be denied probate." 84 OK Stat. § 84-43. Undue influence is wrongful influence, and is one of the most common grounds to contest a will under Oklahoma law. The elements of undue influence are set forth in Oklahoma Statutes § 15-61, which states: Undue influence consists:- In the use, by one in whom a confidence is reposed by another, or who holds a real or apparent authority over him, of such confidence or authority for the purpose of obtaining an unfair advantage over him.
- In taking an unfair advantage of another's weakness of mind; or,
- In taking a grossly oppressive and unfair advantage of another's necessities or distress.
Contest a Will In Oklahoma Based On Lack of Testamentary Capacity
A testator is required to be of sound mind (to have testamentary capacity) to make a valid will under Oklahoma law. A testator’s lack of testamentary capacity at the time the will was made is a ground to contest the will under Oklahoma law. Testamentary capacity, or the lack thereof, is a question of fact, to be determined from the evidence in each particular case. Hunter v. Battiest, 79 Okla. 248. To have testamentary capacity, Oklahoma law says that the testator must understand, in a general way:- The quality and quantity of his or her property;
- The natural objects of his or her bounty; and,
- The legal effect of signing the will.
