VERMEDAH v. HEATH

Court of Appeals of Arizona·Decided June 25, 2026·No. 1 CA-CV 25-0281·Unpublished·Andrew M. Jacobs

Opinion

NOTICE: NOT FOR OFFICIAL PUBLICATION. UNDER ARIZONA RULE OF THE SUPREME COURT 111(c), THIS DECISION IS NOT PRECEDENTIAL AND MAY BE CITED ONLY AS AUTHORIZED BY RULE.

IN THE ARIZONA COURT OF APPEALS DIVISION ONE

MARY VERMEDAHL, et al., Plaintiffs/Appellants/Cross-Appellees,

v.

DANIEL HEATH, et al., Defendants/Appellees/Cross-Appellants.

No. 1 CA-CV 25-0281 No. 1 CA-CV 25-0593 (Consolidated) FILED 06-25-2026

Appeal from the Superior Court in Maricopa County No. CV2022-006448 The Honorable Timothy J. Ryan, Judge (Retired)

REVERSED AND REMANDED

COUNSEL

Burg Simpson Eldredge Hersh & Jardine PC, Phoenix By David Kendell TeSelle, Rachel Nicole Denning, and Joshua Abromovitz Plaintiffs/Appellants/Cross-Appellees

Burg Simpson Eldredge Hersh & Jardine PC, Englewood By David Dean Batchelder (Pro Hac Vice) Plaintiffs/Appellants/Cross-Appellees Quarles & Brady LLP, Phoenix By Jimmie W. Pursell, Jr., Daniel J. F. Peabody, Christopher Thomas Shanley Defendants/Appellees/Cross-Appellants

MEMORANDUM DECISION

Presiding Judge Andrew M. Jacobs delivered the decision of the Court, in which Judge Brian Y. Furuya and Judge James B. Morse Jr. joined.

J A C O B S, Judge:

¶1 Mary and Walter Vermedahl appeal the superior court’s entry of summary judgment against them on their claim that Daniel and Toni Heath sold them a lame horse (“Charlie”), and the court’s exclusion of the Vermedahls’ experts, who opined about tests performed on Charlie shortly after the Vermedahls bought him. The Heaths appeal the summary judgment against them on their counterclaim that the Vermedahls defamed Daniel.1 Because the court erred by excluding the Vermedahls’ experts, and genuine issues of material fact remain as to all claims, we reverse the summary judgments and remand for further proceedings.

FACTS AND PROCEDURAL HISTORY

A. The Vermedahls Buy Charlie on January 11, 2022, After Test Rides on January 8 and 9, 2022, and a Prepurchase Examination on the Day of Sale.

¶2 The Vermedahls are experienced ropers who wanted to buy a horse suitable for competitive team roping. Daniel breeds and sells Western performance horses. He advertised a horse on Facebook named Legend De Lena, but more commonly known as Charlie, as a “Champion Reined Cow Horse” and a “Roping Head Horse, or Heel Horse.” Mary contacted Daniel after seeing his Facebook ad, and Daniel knew Mary intended to use Charlie as a head roping horse.

1 Throughout this matter, Mary and Walter Vermedahl generally proceeded

jointly, as did Daniel and Toni Heath. Thus, even though some pleadings and briefs were filed only by one spouse, other than setting out facts that pertain to particular litigants, for ease of reference, we refer to the litigants collectively as “the Vermedahls” and “the Heaths.”

2 VERMEDAHL, et al. v. HEATH, et al. Decision of the Court

¶3 Before buying Charlie, Mary repeatedly evaluated him. On January 8, 2022, she went to the Heaths’ property. After seeing Toni ride Charlie there, Mary rode Charlie and roped a mechanical steer while she did so. Daniel then brought Charlie to the Vermedahls’ property on both January 8 and 9 so Mary could continue to rope cattle while mounted on Charlie under live-cattle conditions. Daniel imposed no time limits or restrictions on Mary’s test rides with Charlie. Mary testified Charlie did not appear lame or feel “off” during these test rides. After one, Mary texted Daniel that she and Walter “really like[d]” Charlie, and that Charlie was “a real gem.”

¶4 Mary agreed to buy Charlie for $50,000, subject to Charlie passing a prepurchase veterinarian examination (“PPE”). Dr. Brian Buchanan performed the PPE the morning of January 11. Dr. Buchanan observed Charlie jog in hand and in circles, performed flexion testing, and took radiographs of Charlie’s legs. Dr. Buchanan concluded Charlie was “sound baseline,” which means “the horse was not exhibiting shortness of stride,” though he flexed “a little bit sore” in the front limbs. Mary was present for this discussion and acknowledged Charlie’s soreness, stating it seemed “par for the course” for an eight-year-old rope horse. Mary then completed the purchase and took Charlie home, also on January 11.

B. Charlie’s Condition Arguably Changes After the Sale and Veterinarians Examine Him One and Three Days Later.

¶5 The parties sharply dispute Charlie’s condition after the sale. Mary testified that within hours of bringing Charlie home, “he was starting to elevate on the front end” in a way she described as “extremely dangerous” because if “a horse elevates too high, they can flip over backwards, and you can get killed.” The next day, January 12, Mary warmed Charlie up in her arena and observed behavior she believed indicated pain, including uneven weight distribution, spasming in his front legs and shoulders, reluctance to move comfortably, and lameness in his left front leg when trotting on a loose rein.

¶6 Later that day, worried Charlie might be in pain, Mary took him to her neighbor’s home where Dr. Scott Strosnider was treating the neighbor’s horses. Dr. Strosnider conducted a lameness exam on Charlie that day. Dr. Strosnider found Charlie capable of being ridden, roped from, and worked. But Dr. Strosnider also observed lameness after flexion, including a noticeable head bob, and identified left-front tendinitis. Dr. Strosnider later explained a horse may appear sound and workable “until you put it under an issue of stress or load” and “[s]o while he appears to be

3 VERMEDAHL, et al. v. HEATH, et al. Decision of the Court

sound when you first look at him, until you do your flexions, you don’t know if he has a lameness issue.”

¶7 That evening, Mary texted Daniel, asking to return Charlie for a refund. Daniel responded that Charlie had always been perfectly healthy and recommended that Mary have Dr. Buchanan examine Charlie again. Daniel later offered to repurchase Charlie for $50,000, subject to a PPE “so that [he] could determine what, if anything, had actually happened to Charlie.” Mary declined that offer.

¶8 Mary also contacted Dr. Gary Kaufman, a veterinarian with more than 50 years of experience in equine medicine and surgery, including decades of experience diagnosing equine lameness and administering lidocaine in clinical practice. Dr. Kaufman has administered lidocaine to horses “nearly on a daily basis” during his decades-long equine practice, has administered it “literally thousands of times,” and regularly uses it during lameness examinations to isolate pain and determine whether “a lame horse becomes sound.” He further explained that, if administered in the proper amount, at the proper site, and within the proper time, lidocaine can allow “a horse that is, in fact, unusably lame” to “gain a full, normal stride and not appear lame.”

¶9 Dr. Kaufman examined Charlie on January 14. He observed Charlie was lame and concluded he was not rideable. To evaluate whether Charlie’s condition could be attributed to a post-sale injury, Dr. Kaufman recommended both a drug screen through Center for Toxicology Services, Inc. (“CTS”) and muscle enzyme testing through DVM Labs, and collected the blood samples himself, also on January 14.

C. Blood Testing Three Days After the Sale Shows Lidocaine and Its Metabolite in Charlie’s Body.

¶10 Dr. Kaufman submitted the samples to CTS, where Jeanne Mahoney serves as President, Director, and Quality Control Coordinator. Ms. Mahoney has worked in the testing of animal samples for performance- based drugs, therapeutics, and medications since 1982 and has overseen laboratory operations at CTS since 1991.

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