#28955-aff in pt & rev in pt-SRJ 

2020 S.D. 2 

IN THE SUPREME COURT 

OF THE 

STATE OF SOUTH DAKOTA 

* * * * 

IN THE MATTER OF THE ESTATE OF 

RUSSELL O. TANK, Deceased. 

* * * * 

APPEAL FROM THE CIRCUIT COURT OF 

THE FIFTH JUDICIAL CIRCUIT 

MARSHALL COUNTY, SOUTH DAKOTA 

* * * * 

THE HONORABLE SCOTT P. MYREN 

Judge 

* * * * 

DANIEL K. BRENDTRO 

ROBERT D. TRZYNKA of 

Brendtro Law Firm, Prof. LLC 

Sioux Falls, South Dakota Attorneys for appellants Arlo 

Tank, Renald Tank, Sherri 

Castro, and Gina Ellingson. 

REED RASMUSSEN of 

Siegel, Barnett & Schutz, LLP 

Aberdeen, South Dakota Attorneys for appellee 

 Jason Bender. 

* * * * 

CONSIDERED ON BRIEFS 

SEPTEMBER 30, 2019 

 OPINION FILED 01/22/20
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JENSEN, Justice 

[¶1.] Russell Tank farmed in the Britton area most of his life and 

accumulated a sizeable estate. He died on May 25, 2016, at the age of 84. Russell’s 

last will and testament, executed on December 19, 2012, was offered for probate on 

June 6, 2016. The will named Russell’s neighbor and long-time farm tenant, Jason 

Bender, as his sole heir and specifically disinherited Russell’s four adult children: 

Arlo Tank, Renald (Renny) Tank, Sherri Tank, and Regina (Gina) Ellingson 

(Children). Children filed a petition challenging the will on the grounds of lack of 

testamentary capacity, insane delusions, and undue influence. Following discovery, 

Bender filed a motion for summary judgment on Children’s claims. The circuit 

court granted Bender’s motion and entered an order dismissing the petition. 

Children appeal. We affirm in part and reverse in part. 

Facts and Procedural History 

[¶2.] After returning from serving in the U.S. Army in the 1950s, Russell 

married Harriet. Children were born during the marriage. Russell and Harriet 

separated in 1971 and divorced in 1974. Children were all under the age of ten at 

the time of the separation. Following the separation and divorce, Renny, Sherri, 

and Gina lived with Harriet, while Arlo lived with Russell. Children spent some 

time with Russell on the weekends. In his teen years, Renny began living with 

Russell and assisting on the farm. 

[¶3.] Despite efforts to connect with their father while growing up, Children 

did not develop an emotional bond with him. Each of them explained that Russell 

never showed them love or affection and seemed disinterested in them and their 
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activities. Children described how Russell stared off in the distance when they were 

around, never made eye contact with them, and rarely talked with them. They 

asserted Russell’s only interests were working and restoring vintage vehicles. 

[¶4.] Arlo farmed and lived with Russell until 1985, when Russell, for 

unknown reasons, abruptly told Arlo to leave. Arlo claimed he was forced to leave 

so quickly that he was unable to gather his possessions. He subsequently sued and 

was awarded a $40,000 judgment against Russell. Arlo continued to live in the 

area, but the two hardly spoke after 1986. 

[¶5.] Renny lived and farmed with his father until 2001, when Russell asked 

Renny to leave the farm. An acquaintance attempted to intervene, but Russell was 

unwilling to change his mind. Much like Arlo, Russell’s reasons for asking Renny to 

leave are unknown. Renny moved a short distance from Russell, but the two saw 

each other only occasionally. 

[¶6.] Gina and Sherri moved from the Britton area after high school. Both 

visited the area over the years, but rarely saw their father. They each sent Russell 

letters, cards, and invitations to special occasions, but he never responded. Gina 

testified that she had little contact with Russell after 1979, and estimated that she 

had not spoken to her father since 1993. Sherri visited her father from time to time, 

but rarely saw Russell after 2005. 

[¶7.] Bender first met Russell while growing up in the Britton area through 

his father’s acquaintance with Russell. In the late 1990s, Russell, Bender, Boyd 

Hagenson, and others began regularly playing cards together. In 2002, Russell 

leased his farmland to Bender for a cash rent of $50 per acre. Bender acknowledged 
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the rental rate was significantly less than market rent, but claimed it was the 

amount Russell requested. Bender also explained that he expended extra time and 

money to address weed problems in the first few years of farming the land. At the 

time, Russell had not grown a crop on the land for an entire year. The rental rate 

never changed in the fifteen years before Russell’s death. Bender testified he 

mentioned to Russell more than once that the rent was too low, but claimed Russell 

would say it was fine and say that Bender could help him out around the farm. 

[¶8.] Bender assisted Russell more and more over the years. Bender took 

Russell to see Russell’s army friend several times in Ohio and drove Russell to visit 

the gravesite after Russell’s friend passed away. In 2009, Russell had attorney Tom 

Sannes draft a power of attorney, naming Bender as attorney-in-fact. Later, 

Russell added Bender as a signatory on his bank account and gave Bender a large 

sum of cash to hold for Russell’s safekeeping. Russell had also buried cash at 

different locations around the farm. He later told Bender where this money was 

located, and Bender created a map showing the locations. In 2015, Bender 

arranged for Russell to be placed in a nursing home after Russell was unable to care 

for himself. At this time, Bender dug up the cash Russell had buried and testified 

that he placed the money in a safe at his home.1

[¶9.] Russell prepared at least three wills during his lifetime. The first 

identified will was prepared by attorney Tom Sannes in 2001. Russell told Sannes 

he wanted to give nearly everything to his daughter Sherri and disinherit his other 

three children. Sannes asked a local physician to perform a competency exam 

 

1. At the time of Russell’s death, Bender was holding $149,000 of Russell’s cash. 
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before drafting the will. The physician examined Russell and sent a letter to 

Sannes concluding that Russell was mentally competent. The 2001 will executed by 

Russell gave all of Russell’s property to his daughter Sherri, except for a few 

vintage vehicles given to Russell’s friends. Sherri was also named as Russell’s 

personal representative. The other three children were specifically disinherited. 

[¶10.] Russell executed a second will in 2004. At this time, Russell told 

Sannes that he wanted to remove Sherri as a beneficiary and name Bender instead. 

Sannes had no impression that Bender encouraged or was involved in Russell’s 

decision to change his will. Except for a few vehicles given to other friends, the 

2004 will named Bender as Russell’s beneficiary and personal representative. 

Sherri and the other three children were specifically disinherited in the 2004 will. 

[¶11.] Sannes retained memos of each of his meetings with Russell showing 

that Russell expressed an understanding of his heirs, his property, and 

testamentary intentions. Sannes found Russell to be “decisive and able to clearly 

express his wishes” in each meeting. Sannes believed Russell was competent and 

“fully understood” what he was doing when he executed the 2001 and 2004 wills 

and the power of attorney. 

[¶12.] Russell made a third will in 2012, prepared by attorney Kari Bartling. 

Russell was 80 at the time. The will revoked all prior wills and named Bender as 

Russell’s sole heir and personal representative. Children were again specifically 

disinherited in the 2012 will. 

[¶13.] Bartling prepared a contemporaneous memorandum reflecting her 

discussions with Russell prior to drafting the 2012 will. Bartling’s notes reflect that 
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Russell described his assets and answered questions about his background, 

Children, and other family members. Russell told Bartling that he did not want to 

leave anything to Children because he had already helped them out and no longer 

had contact with any of them. Russell stated that he did not know where his two 

daughters lived and had hardly seen them since the divorce. He also said his two 

sons live close to him but described a lack of any contact with them. Russell also 

described some of the things Bender had done for him and told Bartling that he was 

very fond of Bender and could not think of a better person to receive his assets. 

Bartling concluded that “Russell was very well aware of what he owned,” had a 

“good head on his shoulders as far as business,” and “appeared to be very 

intelligent.” Bartling asked Russell if Bender had talked to him about changing his 

will. Russell said “no” and stated that Bender did not know he was doing this. 

[¶14.] After Russell’s death, Bender commenced an informal probate of 

Russell’s 2012 will. Arlo and Renny filed a petition challenging the will. Sherri and 

Gina joined in an amended petition shortly thereafter. The amended petition 

alleged Russell lacked testamentary capacity and that the 2012 will was a product 

of an insane delusion and undue influence. 

[¶15.] Children retained Dr. Rodney Swenson, a psychologist, as an expert 

witness concerning Russell’s competency and mental health. Dr. Swenson did not 

personally examine Russell, and his opinions were based on medical records, 

depositions, and statements from Children and others. Dr. Swenson concluded that 

Russell developed a chronic delusional disorder early in his life that affected his 

ability to form and maintain close relationships with Children and others. Dr. 
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Swenson also concluded that Russell started developing vascular dementia in his 

later years. Dr. Swenson cited Russell’s distrust of societal institutions, limited 

topics of conversation, obsession with keeping loaded guns hidden around him, 

burying large sums of money, and ignoring Children as examples of the delusional 

disorder affecting Russell’s daily life activities. As to the 2012 will, Dr. Swenson 

opined that: (1) Russell lacked testamentary capacity to execute the will because he 

was unable to form, perceive, and understand his connection to Children; (2) the 

will was the product of an insane delusion concerning Russell’s beliefs as to the 

nature of his relationship with Children; and (3) Russell was susceptible to undue 

influence. 

[¶16.] Bender also retained a psychologist, Dr. Daniel Tranel, to address 

Russell’s competency and mental state at the time he executed the 2012 will. Like 

Dr. Swenson, Dr. Tranel did not personally examine Russell and generally relied on 

the same information as Dr. Swenson. Dr. Tranel concluded that Russell did not 

demonstrate symptoms of a delusional disorder. Instead, Dr. Tranel opined that 

Russell’s struggles with relationships and distrust of people and institutions would 

be more accurately placed on the autism spectrum or possibly a personality 

disorder. Dr. Tranel also acknowledged that Russell had begun developing 

dementia the last few years of his life. 

[¶17.] On October 19, 2018, Bender filed a motion for summary judgment, or 

in the alternative, a motion to exclude the opinions of Dr. Swenson. Children 

resisted the motions and both parties presented extensive affidavit and deposition 

testimony. The circuit court heard arguments and orally granted Bender’s motion 
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for summary judgment on Children’s petition. The court did not address Bender’s 

motion to exclude the testimony of Dr. Swenson. The court concluded as a matter of 

law that Russell did not lack testamentary capacity when he executed the 2012 will. 

The court also determined that Russell did not suffer from an insane delusion 

concerning his relationship with Children, concluding Russell’s belief that he had 

an estranged relationship with Children was based on reality. Finally, the court 

granted summary judgment on the undue influence claim, determining there was 

no evidence showing Bender had an improper disposition to unduly influence 

Russell. 

[¶18.] Children appeal the circuit court’s order granting summary judgment, 

raising three issues: 

1. Whether the circuit court erred in concluding there were no genuine 

issues of material fact showing Russell lacked testamentary 

capacity to execute the 2012 will. 

2. Whether the circuit court erred in determining there were no 

genuine issues of material fact showing Russell suffered from an 

insane delusion affecting the terms of his 2012 will. 

3. Whether the circuit court erred in determining there were no 

genuine issues of material fact showing Russell’s 2012 will was 

tainted by undue influence. 

Standard of Review 

[¶19.] “We review a circuit court’s entry of summary judgment under the de 

novo standard of review.” Harvieux v. Progressive N. Ins. Co., 2018 S.D. 52, ¶ 9, 915 

N.W.2d 697, 700 (quoting Wyman v. Bruckner, 2018 S.D. 17, ¶ 9, 908 N.W.2d 170, 

174). “When conducting a de novo review, ‘[w]e give no deference to the circuit 

court’s decision[.]’” Zochert v. Protective Life Ins. Co., 2018 S.D. 84, ¶ 18, 921 
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N.W.2d 479, 486 (quoting Oxton v. Rudland, 2017 S.D. 35, ¶ 12, 897 N.W.2d 356). 

“On appeal from a grant of summary judgment, we must determine whether the 

moving party demonstrated the absence of any genuine issue of material fact and 

showed entitlement to judgment on the merits as a matter of law.” Niesche v. 

Wilkinson, 2013 S.D. 90, ¶ 9, 841 N.W.2d 250, 253. “We view the evidence in favor 

of the nonmoving party and reasonable doubts are resolved against the moving 

party, but the nonmoving party must have presented specific facts showing that a 

genuine, material issue for trial existed.” Id.

Analysis and Decision 

1. Whether the circuit court erred in concluding there were no genuine 

issues of material fact showing Russell lacked testamentary capacity 

to execute the 2012 will. 

[¶20.] A testator has the privilege and right to dispose of his or her property 

within the limits of and in the manner fixed by our statutes. Briggs v. Briggs, 2019 

S.D. 37, ¶ 23, 931 N.W.2d 510, 516. The minimum requirements for making a will 

under SDCL 29A-2-501 are that an individual must be at least eighteen years of age 

and of sound mind. 

[¶21.] One has sound mind or testamentary capacity “if, without prompting, 

he is able to comprehend the nature and extent of his property, the persons who are 

the natural objects of his bounty and the disposition that he desires to make of such 

property.” In re Estate of Long, 2014 S.D. 26, ¶ 18, 846 N.W.2d 782, 786. 

“Testamentary capacity is not determined by any single moment in time[.]” In re 

Estate of Pringle, 2008 S.D. 38, ¶ 20, 751 N.W.2d 277, 284. The state of the 

testator’s mind must be considered for a reasonable length of time before and after 
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the will is executed. Id. The party challenging the will has the burden of 

establishing lack of testamentary capacity. In re Estate of Dokken, 2000 S.D. 9, ¶ 

25, 604 N.W.2d 487, 494; see also SDCL 29A-3-407. 

[¶22.] Children do not dispute that Russell comprehended the nature and 

extent of his property when he executed the 2012 will, but claim that Russell was 

unable to comprehend the natural objects of his bounty or the disposition he 

intended to make of the property. Children argue that the comprehension of one’s 

relatives requires more than a knowledge of their names and familial identities. 

They maintain that to comprehend means “to take in the meaning, nature, or 

importance of” these relationships, particularly with Children. Children cite 

language from In re Anders Estate, 88 S.D. 631, 636, 226 N.W.2d 170, 173 (1975), 

arguing that a testator must “recollect and apprehend the nature of the claims of 

those who are excluded from participating in his bounty.” Children contend that 

Russell’s delusional disorder caused him to be emotionally detached from them and 

unable to comprehend the importance of a father/child relationship and the 

disposition he otherwise would have wanted to make to Children. 

[¶23.] Children’s arguments are contrary to our decisions on testamentary 

capacity. This Court has consistently held that testamentary capacity exists under 

the second and third elements of our test if the testator knows his or her heirs and 

the disposition he or she desires to make of the property. Stockwell v. Stockwell, 

2010 S.D. 79, ¶ 26, 790 N.W.2d 52, 62 (written instrument signed by decedent 

provided evidence that he understood the intended disposition of his property); 

Pringle, 2008 S.D. 38, ¶ 28, 751 N.W.2d at 286 (finding of testamentary capacity 
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sustained when evidence showed testator “was cognizant of her children” at the 

time); In re Estate of Schnell, 2004 S.D. 80, ¶ 18, 683 N.W.2d 415, 421 (evidence 

that testator “knew the natural objects of his bounty” supported a finding of 

capacity); Dokken, 2000 S.D. 9, ¶ 23, 604 N.W.2d at 494 (evidence that testator 

“knew who his relatives were” supporting the finding of testamentary capacity); In 

re Estate of Linnell, 388 N.W.2d 881, 884 (S.D. 1986) (evidence was sufficient to 

support a finding of capacity where the attorney testified that the testator knew 

“who his heirs were at that time” of making the will). 

[¶24.] Attorney Bartling testified that Russell knew his Children at the time 

he executed the 2012 will and described the absence of a relationship with them. 

Bartling testified that Russell expressed a clear intention to disinherit Children and 

give his property to Bender. Children presented no facts disputing Bartling’s 

testimony. 

[¶25.] Children contend that Dr. Swenson’s opinions concerning the impact 

Russell’s delusion disorder had on his relationship with them created a question of 

fact concerning Russell’s testamentary capacity. However, Dr. Swenson’s 

conclusions misapply the standard for testamentary capacity, and conflate the 

separate doctrines of testamentary capacity and insane delusions. As Professor 

Thomas E. Simmons explains in his excellent discussion of testamentary incapacity, 

insane delusions, and undue influence: 

Testamentary capacity precedes an analysis of either undue 

influence or insane delusions; it considers whether the 

individual had the capacity to understand the nature and extent 

of his property, to know the natural objects of his bounty, and to 

form an intent regarding the disposition of his property at 

death. . . . 
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Only after it has been determined that an individual has 

testamentary capacity will the doctrines of insane delusions and 

undue influence have any possibility of operating. An individual 

lacking capacity can never be subject to insane delusion or 

undue influence because those doctrines describe invalidating 

circumstances on all, or portions, of an otherwise valid will[.] 

Thomas E. Simmons, Testamentary Incapacity, Undue Influence, and Insane 

Delusions, 60 S.D. L. Rev. 175, 179–181 (2015). 

[¶26.] Evidence that Russell suffered from a delusional disorder and some 

degree of dementia is insufficient to create a fact question on testamentary capacity 

at the time he made the 2012 will. The evidence is undisputed that Russell had the 

ability to understand and recollect the nature and extent of his property, the 

natural objects of his bounty, and his intended disposition of his property. The 

inquiry for testamentary capacity at that point ends. Children have failed to 

present any facts supporting a claim that Russell lacked testamentary capacity at 

the time he made the 2012 will. 

2. Whether the circuit court erred in determining there were no genuine 

issues of material fact showing Russell suffered from an insane 

delusion affecting the terms of his 2012 will.

[¶27.] A will or portion of a will may be invalidated by an insane delusion of 

the testator. In re Estate of Berg, 2010 S.D. 48, ¶ 47, 783 N.W.2d 831, 842–43; 

Schnell, 2004 S.D. 80, ¶¶ 14–18, 683 N.W.2d 415, 419–21; Irwin v. Lattin, 29 S.D. 1, 

135 N.W. 759, 762 (1912). In Schnell, this Court described the doctrine of insane 

delusions as follows: 

An insane delusion is insanity upon a single subject. An insane 

delusion renders the person afflicted incapable of reasoning 

upon that particular subject. He assumes to believe that to be 

true which has no reasonable foundation in fact on which to base 

his belief. A person persistently believing supposed facts which 

have no real existence against all evidence and probability, and 
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conducting himself upon the assumption of their existence, is so 

far as such facts are concerned, under an insane delusion. 

Schnell, 2004 S.D. 80, ¶ 15, 683 N.W.2d 415, 420 (quoting In re Estate of Flaherty, 

446 N.W.2d 760, 763 (N.D. 1989)). “The will of a testator found to suffer from an 

insane delusion will not be held invalid, however, unless it is shown that his 

delusion materially affected the terms and provisions of his will.” Berg, 2010 S.D. 

48, ¶ 47, 783 N.W.2d at 842. 

[¶28.] Children argue that questions of fact exist as to whether Russell was 

suffering from an insane delusion when he made the 2012 will. They cite to Dr. 

Swenson’s opinions that Russell was paranoid and suffered from a delusional 

disorder his entire life. Children claim that Dr. Swenson presented evidence from 

which a jury could conclude his delusional disorder “made him incapable of 

understanding or recalling the contact that his children had with him; incapable of 

understanding or recalling their efforts to care for him; incapable of understanding 

his own role in causing and perpetuating the failed relationships.” They contend 

that “an insane delusion may exist even though there was some evidence from 

which the person afflicted might have formed his belief of judgment.” See Schnell, 

2004 S.D. 80, ¶ 15, 683 N.W.2d at 420. 

[¶29.] For summary judgment purposes, we accept Dr. Swenson’s opinions 

that Russell’s delusional disorder made him paranoid and unable to form normal 

relationships with people, including Children. However, this evidence is 

insufficient to create a question of fact as to whether Russell suffered from an 

insane delusion. There was no evidence he was delusional about a particular 

subject or topic that “materially affected the terms and provisions of his will.” See 
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Berg, 2010 S.D. 48, ¶ 47, 783 N.W.2d at 842 (emphasis added). “An insane delusion 

is insanity upon a single subject.” Schnell, 2004 S.D. 80, ¶ 15, 683 N.W.2d at 420. 

Often referenced as “monomania”2, an insane delusion “is not a general defect of the 

mind but rather is an insanity directed to something specific, that is, a particular 

person or thing. . . .” 79 Am. Jur. 2d Wills § 76. 

[¶30.] Our prior decisions discussing the doctrine of insane delusions 

recognize that an insane delusion involves a false belief concerning a particular 

subject. Berg, 2010 S.D. 48, ¶ 25, 783 N.W.2d at 838 (testator held onto a delusion 

that he had relatives that did not exist and that the actor Fred MacMurray was his 

father); Schnell, 2004 S.D. 80, ¶ 18, 683 N.W.2d at 420 (considered evidence of a 

belief by the testator that his sons were hiding in the hills with guns to hurt him); 

Irwin, 29 S.D. 1, 135 N.W. at 763 (considered evidence of testator’s belief that she 

was able to communicate with “departed spirits who guided all her actions in the 

ordinary affairs of life”). 

[¶31.] Here, Dr. Swenson’s opinions that Russell had a lifelong delusional 

disorder that affected his ability to form relationships with his children did not 

create a basis to invalidate Russell’s will for an insane delusion.3 Dr. Swenson 

 

2. Monomania is defined as: “Insanity about some particular subject or class of 

subjects, usu[ally] manifested by a single insane delusion.” Black’s Law 

Dictionary 1160 (10th ed. 2014). See also Irwin, 29 S.D. 1, 135 N.W. at 763 

(using insane delusion and monomania interchangeably). 

3. As noted by Professor Simmons, “Despite its name, which resonates with 

psychiatric trappings, an insane delusion is a legal concept rather than a 

scientific one.” Simmons, supra ¶ 27, at 194. See also Bradley E.S. Fogel, 

The Completely Insane Law of Partial Insanity: The Impact of Monomania on 

 (continued . . .) 
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described relationship issues and odd behaviors exhibited by Russell that Dr. 

Swenson attributed to Russell’s delusional disorder, but Dr. Swenson failed to 

identify a fixed, delusional belief that materially affected the terms of Russell’s will. 

Dr. Swenson also pointed to inaccurate statements Russell made to his attorneys 

about his relationship with his children.4 Russell’s recollections and perceptions of 

his interactions with Children may differ from Children’s, and may have even been 

inaccurate, but they fail to create a question of fact showing that Russell was 

suffering from an insane delusion. Rather, Russell’s statements reflect the 

unfortunate reality, which is undisputed in this record, that Russell had a poor 

relationship with Children. As the circuit court aptly concluded, “I accept Dr. 

Swenson’s conclusion that part of Russell’s psychological character interfered with 

his ability to form normal relationships with his Children. I do not accept his 

application of those psychological facts to South Dakota’s law of insane delusions.” 

[¶32.] Children have failed to present facts to show that Russell was 

suffering from an insane delusion that caused him to disinherit Children. 

3. Whether the circuit court erred in determining there were no genuine 

issues of material fact showing Russell’s 2012 will was tainted by 

undue influence. 

________________________ 

(. . . continued) 

Testamentary Capacity, 42 Real Prop. Prob. & Tr. J. 67, 68 (2007) (noting 

that courts have fashioned the legal doctrine of insane delusions). 

4. Dr. Swenson relied upon statements made by Russell to his attorneys in 

which he claimed he had no contact with his daughters since the divorce, that 

he did not know where they lived, that he was upset he had not seen his 

daughters at a local parade, that he lost contact with his sons years ago, that 

Renny did not contact him or wave to Russell when driving on the road, and 

that Russell believed his sons had been “terrible” to him.
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[¶33.] A will contestant has the burden to prove undue influence by the 

greater weight of the evidence. Pringle, 2008 S.D. 38, ¶ 44, 751 N.W.2d at 291. 

“For influence to be undue it must be of such a character as to destroy the free 

agency of the testator and substitute the will of another for that of the testator.” Id.

(quoting Schnell, 2004 S.D. 80, ¶ 21, 683 N.W.2d at 421).5 We have stated that 

claims of undue influence are generally questions of fact. Pringle, 2008 S.D. 38, ¶ 

18, 751 N.W.2d at 284. A party seeking to prove undue influence must establish: 

“(1) the decedent’s susceptibility to undue influence; (2) an opportunity to exert such 

influence and effect the wrongful purpose; (3) a disposition to do so for an improper 

purpose; and, (4) a result clearly showing the effects of undue influence.” Stockwell, 

2010 S.D. 79, ¶ 35, 790 N.W.2d at 64. Therefore, to successfully resist summary 

judgment, Children must “show that they will be able to place sufficient evidence in 

the record at trial to support findings on all the elements on which they have the 

burden of proof.” Foster-Naser v. Aurora Cty., 2016 S.D. 6, ¶ 11, 874 N.W.2d 505, 

508. 

[¶34.] Bender does not dispute that there are facts showing he had the 

opportunity to influence Russell. He does, however, dispute that Children 

presented genuine issues of fact on the other elements of undue influence upon 

which Children have the burden of proof. 

 

5. A presumption of undue influence arises when there is (1) a confidential 

relationship between the testator and a beneficiary, and (2) the beneficiary 

“participates in preparation and execution of the will and unduly profits 

therefrom.” In re Estate of Duebendorfer, 2006 S.D. 79, ¶ 32, 721 N.W.2d 438, 

446–47. Children concede that a presumption of undue influence did not 

arise in this case because Bender did not participate in the preparation of 

Russell’s 2012 will.
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[¶35.] As to Russell’s susceptibility to undue influence, Children argue that 

the opinions of Dr. Swenson and testimony of other witnesses create disputed facts 

for trial. In particular, Children presented testimony of a bank employee who 

interacted and conducted bank business with Russell for more than twenty years. 

The bank employee stated that she became increasingly concerned about Russell’s 

mental acuity in his later years and that he seemed less certain about what he 

wanted to do when he came into the bank. The bank employee also expressed 

concern about the amount of cash Russell began withdrawing, as well as Boyd 

Hagenson’s involvement in Russell’s banking business.6 She observed that 

Hagenson often brought Russell to the bank and seemed overly engaged in Russell’s 

private banking business. 

[¶36.] The bank employee described one particular transaction in the fall of 

2013 when Russell, accompanied by Hagenson, sought to negotiate a $28,000 check 

for cash. She instead convinced Russell to take $8,000 cash and a cashier’s check 

for the balance. She overheard Hagenson telling Russell to include Hagenson’s 

name on the cashier’s check. The bank employee reluctantly added Hagenson’s 

name to the check after Russell told her to do so. Later, Russell came to the bank, 

this time accompanied by Bender, stating that the check and cash could not be 

 

6. There is evidence that Hagenson spent time with both Russell and Bender. 

However, there are no facts showing Hagenson was involved in the 

preparation of the 2012 will or that Bender benefitted from any of Hagenson’s 

actions. 
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located and Hagenson’s whereabouts were unknown.7 During this visit, Bender 

asked Russell if he wanted to add Bender’s name to Russell’s account. Russell then 

conferred with the bank about adding Bender’s name to Russell’s account, and later 

did so. 

[¶37.] Dr. Swenson opined that Russell was showing signs of vascular 

dementia by at least 2009, and that his dementia likely would have caused 

problems for Russell some time before it became apparent in 2009. Dr. Swenson 

suggested that Russell’s delusional disorder and dementia would have made him 

more susceptible to manipulation and influence by others. 

[¶38.] Bender disputes Dr. Swenson’s opinions, and claims they are 

unsupported by evidence. Bender cites Children’s own description of Russell as 

“domineering”, “hardheaded”, and “controlling”.8 Bender submits that Russell was 

strong willed and distrustful of people, which “weighs against a finding that such a 

person is susceptible to undue influence.” Although Bender believes Dr. Swenson’s 

opinions are unfounded, they were not stricken by the circuit court and therefore 

remain a part of the summary judgment record. Moreover, Bender’s invitation to 

“weigh” Dr. Swenson’s opinions against other evidence is not appropriate on 

summary judgment. We conclude that disputed facts exist as to Russell’s 

susceptibility to undue influence. 

 

7. The cashier’s check had not been negotiated. It is unclear what happened to 

the check or the cash. 

8. Importantly, these descriptions of Russell were from a time when Children 

interacted with Russell when he was younger. Renny testified that Russell 

mellowed as he grew older. The record also suggests that as Russell aged, he 

became more reliant on Bender for assistance. 
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[¶39.] On the question of Bender’s disposition to influence Russell for an 

improper purpose, the circuit court concluded there were no facts supporting a 

finding that Bender had such a disposition. Children claim the circuit court failed 

to consider circumstantial evidence showing Bender’s improper disposition to 

influence and take advantage of Russell. They cite In re Metz Estate to support 

their claim that direct proof of undue influence is rarely available and is not 

required to present a question of fact for undue influence: 

There is no direct proof of undue influence in this case. There 

seldom is. Undue influence is not usually exercised in the open. 

“It is therefore usually solely through inferences drawn from 

surrounding facts and circumstances that a court arrives at the 

conclusion that a will is the product of undue influence working 

on the mind of the testator.” 

78 S.D. 212, 221, 100 N.W.2d 393, 397 (1960) (quoting Johnson v. Shaver, 41 S.D. 

585, 172 N.W. 676, 678 (1919)). 

[¶40.] Children initially argue that the farm rental arrangement between 

Russell and Bender provides circumstantial evidence of Bender’s ability and 

disposition to exert undue influence over Russell. They cite Neugebauer v. 

Neugebauer, 2011 S.D. 64, 804 N.W.2d 450, where we affirmed a finding that a 

mother’s agreement to sell land to her son at a price substantially below fair market 

value was the result of undue influence. Affirming the circuit court’s finding that 

the son had a disposition to exert undue influence, the Court considered, among 

other evidence, that the son “historically took advantage of [mother] by paying her 

less than fair market rent under the oral lease.” Id. ¶ 24, 804 N.W.2d at 456. 

[¶41.] Here, Bender testified that Russell set the amount of rent and that the 

rent was never increased because Russell always rebuffed Bender’s suggestions to 
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do so. However, Bender acknowledged the rent was below market rate. Bender 

further acknowledged that rental rates for agricultural property in the area 

increased significantly after 2002. Despite these increases, the rental rate for 

Russell’s farmland never changed, even after Bender became Russell’s fiduciary in 

2009.9

[¶42.] Evidence also shows that Russell gave Bender a large amount of cash 

to hold for him for “safekeeping” in 2009. After Russell was placed in the nursing 

home in 2015, Bender testified that he dug up the additional cash that Russell had 

buried around the farm and put it in his safe. Bender did not inventory or account 

for any of this cash until after Russell’s death. Aside from a friend who assisted 

him with digging up some of the buried money, Bender did not disclose his receipt of 

this cash to anyone until after Russell’s death. Children also presented testimony 

from a neighbor concerning a transaction with Bender in which Bender paid the 

neighbor cash to purchase a tractor. This transaction occurred after Bender had 

access to Russell’s cash, and the witness claimed the money received from Bender 

smelled so moldy that she put it outside to air out. Bender admitted that some of 

the money he received from Russell smelled “slightly” moldy. 

[¶43.] These circumstances, viewed most favorably to Children, raise 

material issues of fact concerning whether Bender took advantage of Russell in the 

 

9. There is no evidence that Bender made use of the power of attorney to rent 

Russell’s land. However, when Bender became aware he was Russell’s 

attorney-in-fact, “a fiduciary relationship [was] created” and “the fiduciary 

[had] a duty to act primarily for the benefit of the other.” See Duebendorfer, 

2006 S.D. 79, ¶ 26, 721 N.W.2d at 445. 
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rental arrangement and in handling the cash Russell gave him and whether such 

evidence supports a finding that Bender had a disposition to influence Russell for 

an improper purpose. On summary judgment, “[a]ll reasonable inferences drawn 

from the facts must be viewed in favor of the non-moving party.” St. Onge Livestock 

Co., Ltd. v. Curtis, 2002 S.D. 102, ¶ 10, 650 N.W.2d 537, 540–41. 

[¶44.] Finally, we consider whether Children have presented a question of 

fact whether the disposition of Russell’s 2012 will clearly shows the effects of undue 

influence. Bender argues that the evidence fails to show such a result because the 

2012 will was consistent with the prior will Russell had made in 2004. He cites In 

re Blake’s Estate which states, “The consistency and harmony of the two wills and 

the considerable lapse of time between their execution strongly negatives the 

presence of undue influence[.]” 81 S.D. 391, 400, 136 N.W.2d 242, 247 (1965). 

While the consistency between the 2004 and 2012 wills may be relevant, a fact 

finder could also consider the circumstances involving Russell’s decision to give 

nearly all his property to Sherri in the 2001 will and then disinherit her completely 

in the 2004 will, just three years later. 

[¶45.] After Sherri had already been named the primary beneficiary in the 

2001 will, Bender began renting farmland from Russell at a reduced rate and 

became more involved in Russell’s affairs. Aside from Bender’s increased 

involvement with Russell, there is nothing in the record to suggest that anything 

occurred in the relationship between Russell and Sherri from 2001 to 2004 that 

would have caused Russell to disinherit his daughter. A fact finder could consider 

these circumstances, and inferences drawn from them, in determining whether 
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Russell’s decision to disinherit Sherri in the 2012 will was clearly the result of any 

undue influence by Bender. 

[¶46.] In contrast, the “causation” element concerning Russell’s decision to 

disinherit Arlo, Renny, and Gina in the 2012 will is more problematic because 

Russell had already decided to disinherit them in the 2001 will. Children have 

made no claim that Bender engaged in any undue influence before Russell made the 

decision to disinherit Arlo, Renny, and Gina in the 2001 will. 

[¶47.] Children argue that notwithstanding the prior wills, Russell made an 

unnatural disposition of his estate, which may support a finding that the will was 

clearly a result of undue influence. They claim that both the 2004 and 2012 wills 

resulted in an unnatural disposition to Bender because Children were “the natural 

objects of a [Russell’s] bounty.” See Blake’s Estate, 81 S.D. at 400, 136 N.W.2d at 

247. While Arlo, Renny, and Gina may have been Russell’s heirs at law, there is no 

evidence to show that Russell had any testamentary disposition toward them, even 

in the absence of any alleged undue influence by Bender. The evidence shows that 

Russell’s relationship with Arlo and Renny became more estranged after Russell 

kicked them off the farm. Further, Gina’s relationship with her father, by her own 

testimony, was nearly non-existent after 1979. It is undisputed that Russell had 

already decided to disinherit Arlo, Renny, and Gina in 2001, before there was any 

claim of undue influence by Bender. Arlo, Renny, and Gina have failed to present 

any evidence showing “causation” between any alleged undue influence by Bender 

and Russell’s decision to disinherit each one of them in the 2004 will and, more 

particularly, in the 2012 will. Therefore, the circuit court properly granted 
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summary judgment as to any claim that undue influence caused Russell to 

disinherit Arlo, Renny, and Gina. 

[¶48.] By their very nature, claims of undue influence are fact intensive 

inquiries. The “evidence and favorable inferences from that evidence” must be 

viewed “in a light most favorable to the nonmoving party” at the summary 

judgment stage. Stone v. Von Eye Farms, 2007 S.D. 115, ¶ 6, 741 N.W.2d 767, 769. 

Doing so here, we conclude that material issues of fact exist on Sherri’s claim that 

2012 will was the product of undue influence, and summary judgment should not 

have been entered on her claim. Conversely, there is no evidence to support a claim 

that Russell’s disinheritance of Arlo, Renny, and Gina in his 2012 will was clearly 

the result of undue influence. 

[¶49.] We reverse the entry of summary judgment on Sherri’s claim of undue 

influence. We affirm the entry of summary judgment on all the other claims in 

Children’s petition challenging the 2012 will. 

[¶50.] GILBERTSON, Chief Justice, and KERN, SALTER, and DEVANEY, 

Justices, concur.