10/13/2026
REQUEST FOR INFORMATION REGARDING JEFF MAYO, DVM AND MAYO VETERINARY SERVICES:
As part of Animal Law Offices, PLLC's continuing investigation into active litigation, Animal Law Offices, PLLC requests that anyone who has:
(1) Suffered economic loss from allegedly deceptive, unfair, or misleading business transactions, interactions, advertising, or chart notes by or with Robert Jeffrey Mayo, DVM, DABVP, MS, MANZCVS or Mayo Veterinary Services; or
(2) Suffered injury or death to one's animal treated/operated on by Robert Jeffrey Mayo, DVM, DABVP, MS, MANZCVS or Mayo Veterinary Services,
to please contact Animal Law Offices, PLLC at 888.430.0001 or by submitting responsive details to https://animal-lawyer.com/contact/.
Information is hereby sought in furtherance of identifying potential fact witnesses relative to litigation against Mayo and Happy Tails Animal Hospital, where Mayo had performed numerous procedures in 2024.
Among the allegations made in the current litigation are that Mayo was represented as “the guy,” a “surgeon,” and “expert” with a national reputation as the best.
Dr. Mayo runs a mobile practice and travels to brick-and-mortar clinics throughout the region. He is not a board-certified surgeon with the American College of Veterinary Surgeons. In 2023, as discussed below, the Department of Health executed an agreed order on the issue of advertisement. Case M2020-534. A copy of this Agreed Order is attached. Mayo was released from this Order in 2023.
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By way of history, in 2020, Adam Karp represented the Conners, who sued Dr. Mayo and others related to a TPLO surgery Mayo allegedly performed on Hank, their Dogue du Bordeau, at a brick-and-mortar clinic. On 8.12.21, the arbitrator found Mayo committed negligence and also violated the Consumer Protection Act. To learn more, see Conner v. Mayo et al., Snohomish Cy. Sup. Ct. No. 20-2-02606-31.
Karp filed a board grievance against Mayo related to Hank, which resulted in a Statement of Charges and later, an Agreed Order in 2023. Case M2020-534.
Prior to this, in 2019, Karp filed another board grievance against Mayo related to dog upon whom Mayo allegedly performed a CBLO. This resulted in a Statement of Allegations and, later, a Stipulation to Informal Disposition. Case M2019-119.
One Department of Health case is presently pending against Mayo, based on another grievance filed by Karp.
To learn more about actions taken by the Department of Health against Dr. Mayo, go to https://wahelms.my.site.com/s/license-search?recordId=0cEcr000000ZTfUEAW.