Gibson v. Gibson

CourtSouth Dakota Supreme Court
DecidedJuly 1, 2026
Docket31073, 31084, 31085
StatusPublished

This text of Gibson v. Gibson (Gibson v. Gibson) is published on Counsel Stack Legal Research, covering South Dakota Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Gibson v. Gibson, (S.D. 2026).

Opinion

#31073, #31084, #31085-a-MES 2026 S.D. 43

IN THE SUPREME COURT OF THE STATE OF SOUTH DAKOTA

MICHAEL A. GIBSON, Plaintiff and Appellant,

v.

GREG GIBSON, Individually, JOAN GIBSON, Individually, GIBSON FAMILY LIMITED PARTNERSHIP, a South Dakota Limited Partnership, ROBERT M. RONAYNE, and RONAYNE LAW OFFICE, P.C., Defendants and Appellees.

APPEAL FROM THE CIRCUIT COURT OF THE THIRD JUDICIAL CIRCUIT CODINGTON COUNTY, SOUTH DAKOTA

THE HONORABLE CARMEN MEANS Judge

JONATHAN A. HEBER ABIGALE M. FARLEY of Cutler Law Firm, LLP Sioux Falls, South Dakota Attorneys for plaintiff and appellant.

EDWIN E. EVANS RYAN W. W. REDD of Evans, Haigh & Arndt, LLP Sioux Falls, South Dakota Attorneys for defendant and appellee Gibson Family Limited Partnership.

ARGUED FEBRUARY 11, 2026 OPINION FILED 07/01/26 ZACHARY W. PETERSON JACK H. HIEB of Richardson, Wyly, Wise, Sauck & Hieb, LLP Aberdeen, South Dakota Attorneys for defendants and appellees Robert Ronayne and Ronayne Law Office, P.C.

SANDER J. MOREHEAD JACOB R. SCHNEIDER of Woods, Fuller, Shultz & Smith, P.C. Sioux Falls, South Dakota Attorneys for defendants and appellees Greg Gibson and Joan Gibson. #31073, #31084, #31085

SALTER, Justice

[¶1.] Michael Gibson appeals the circuit court’s decision dismissing his

lawsuit as a sanction for violating the subpoena rules set out in SDCL 15-6-45(b).

Among a series of less serious violations, Michael’s counsel obtained his mother’s

medical records through a subpoena while a motion to quash was pending, later

offering an unsustainable legal argument, refusing to acknowledge any wrongdoing,

and shifting blame to others. Michael’s arguments on appeal are much the same.

We affirm.

Factual and Procedural History

GFLP and the current action

[¶2.] Delores Gibson established the Gibson Family Limited Partnership

(GFLP) in 2002 as an estate planning tool, largely to distribute 2,060 acres of

farmland located in Codington and Deuel counties to her children. Delores

contributed the farmland and acts as GFLP’s general partner with sole authority

over partnership decisions. Her sons, Michael and Greg Gibson, are equal limited

partners.

[¶3.] Prior to this current action, Michael has twice unsuccessfully sued

Greg, or Delores, or both for claims relating to GFLP. In the more recent of the two,

Michael sued GFLP and Delores, alleging she had breached fiduciary duties as the

general partner. We affirmed a jury’s defense verdict and the circuit court’s denial

of Michael’s request to disassociate from GFLP in Gibson v. Gibson Family Ltd.

Partnership, 2016 S.D. 26, 877 N.W.2d 597. And in the older, first action, a jury

-1- #31073, #31084, #31085

rejected Michael’s claims against Greg and Delores, which also included an

allegation that she had breached her fiduciary duties. Id. ¶ 3, 877 N.W.2d at 599.

[¶4.] Michael commenced this third action in October 2023 claiming that

Delores has been unduly influenced by Greg and his wife, Joan. The case involves

an underlying land transaction in which Greg purchased land from GFLP. Michael

claims the terms were too favorable and preempted his own efforts to acquire the

land. Michael also named as a defendant Robert Ronayne, an attorney who

previously represented GFLP and assisted with the land sale to Greg.

[¶5.] At the heart of the dispute is Michael’s overarching theory that Delores

lacks capacity to make decisions for GFLP. He claims that Greg is acting as GFLP’s

de facto general partner and has violated various fiduciary duties in concert with

Ronayne. Michael also alleges that Greg and Joan tortiously interfered with his

existing and prospective business relationship with GFLP.

[¶6.] Delores is not a defendant in this action. Through his lawyers, Michael

embarked on a sustained effort to use subpoenas issued pursuant to SDCL 15-6-45

(Rule 45) to obtain Delores’s personal financial and medical records, as well as

information relating to Greg and Joan, and to GFLP. Michael was represented by

attorney Paul Sortland of Minneapolis, and, although Sortland associated with local

counsel, the subpoenas he issued often failed to conform to Rule 45.

[¶7.] For instance, in May 2024, Sortland and local counsel issued several

subpoenas to non-parties, including banks and Schwan Financial Group, which

provided tax and financial planning for GFLP. After Schwan was served, its lawyer

contacted Michael’s attorneys and informed them that the subpoena failed to

-2- #31073, #31084, #31085

conform with Rule 45 because there had been no compliance with Rule 45(b)’s pre-

service notice requirement.1 Local counsel also noted that all of the previously

issued subpoenas failed to state that they were issued in the name of the presiding

judicial officer—a specific requirement of Rule 45(a). Michael’s attorneys corrected

the errors and issued a belated “notice” for the already-served subpoenas.

[¶8.] In August 2024, Michael sought to depose Delores, but GFLP resisted

and submitted letters from psychologist Dr. Lee Hendricks and Dr. Sarah

Reiffenberger, a medical doctor. Both doctors had experience treating Delores and

opined that a deposition would be stressful for her and would detrimentally impact

her mental state. In a letter contained in the record, Dr. Reiffenberger stated that

Delores had been taking medication to treat “moderate Alzheimer’s dementia” since

2021. In the end, Delores was not deposed.

[¶9.] Later, in September 2024, Sortland issued notice of depositions for Dr.

Hendricks and Dr. Reiffenberger, seeking information regarding Delores’s health

and mental condition. A month later, Sortland subpoenaed Dr. Reiffenberger,

requesting documents used in the preparation of her earlier letter. The subpoena

was issued in the name of the presiding judicial officer, but the mandatory language

from Rule 45(a), though included, was not directly above the signature line as

1. Rule 45(b) states, “Before a subpoena commanding the production of documentary evidence is served on the person to whom it is directed, a notice and copy of the subpoena must be served on each party to the matter pending.” SDCL 15-6-45(b).

-3- #31073, #31084, #31085

required by the rule.2

The November 15 subpoenas

[¶10.] But these areas of noncompliance with Rule 45, though not optimal,

became secondary to a larger problem related to several subpoenas issued on

November 15, 2024, to Prairie Lakes Hospital in Watertown, as well as several

other Prairie Lakes clinics, seeking Delores’s medical information. The subpoenas

required compliance by December 6, 2024, and, despite being filed electronically,

they were unaccompanied by a separate notice of intent to serve.

[¶11.] On the following Monday, November 18, GFLP, after seeing copies of

the electronically filed November 15 subpoenas, moved to quash the subpoenas and

for a protective order concerning Delores’s medical records and bills. GFLP argued

the records were privileged and the subpoenas did not comply with the Health

2. Rule 45(a) states in part:

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Gibson v. Gibson, Counsel Stack Legal Research, https://law.counselstack.com/opinion/gibson-v-gibson-sd-2026.