Owning a veterinary practice starts with a rule most small businesses never meet: in nine of the 51 U.S. jurisdictions, ownership of the practice itself is restricted to licensed veterinarians.
That rule comes from the corporate practice of veterinary medicine doctrine, and its stated purpose is to keep clinical judgement with clinicians rather than with business owners.
It is also the rule corporate consolidation has had to be structured around — which is where the PC and MSO arrangement comes in.
The rule, and why it exists
The commonly quoted figure is that around eighteen states bar non-veterinarians from owning a veterinary practice.
A statute-by-statute read of all 51 jurisdictions does not support that figure, and it does not support the competing 'roughly fifteen permit outright' framing either.
On the text itself, nine jurisdictions restrict who may hold equity (eight outright, with North Carolina leaving a 49% minority door), a further four permit lay ownership but bar lay control of clinical judgment, and fourteen permit it behind a facility permit with a named responsible veterinarian.
The closest true statement to 'about eighteen' is that thirteen states write a non-veterinarian restriction of some kind into the practice act.
See who can own a veterinary practice, state by state for each jurisdiction's own mechanism — we publish a state page only once its statute has been read and dated, so that index grows one state at a time rather than covering all fifty at once.
The underlying principle is the corporate practice of veterinary medicine doctrine — the veterinary counterpart of a rule that appears across licensed healthcare professions.
It restricts corporations and unlicensed individuals from employing licensed professionals to deliver professional services, on the reasoning that medical judgement should rest with the licensed professional rather than with whoever owns the business.
Whether you find that persuasive or paternalistic, it is the frame the statutes are built on, and it explains why the restrictions attach to ownership and control rather than to what happens in the exam room.
General information, not legal advice
What does owning a veterinary practice actually involve?
Being an owner does not take a veterinarian out of the exam room.
In AVMA's 2024 practice-owner survey, owners spent more than 65% of their time with clients and patients, and between 18.6% and 23.3% of it managing operations, depending on practice type.
Ownership is also a claim on entities, not just a job title.
In that survey, 54.9% of owners held the practice in one legal entity and the land and buildings in a separate one; 24.7% owned the practice but not the land and building, and 19.3% owned practice, land and building in a single entity.
People arrive through one of three broad doors: a buy-in to the practice they already work in, an outright purchase, or a start-up.
The employer-side guides walk through buying a veterinary practice and how to start a veterinary clinic step by step.
And what ownership pays — what a veterinary practice owner makes — stacks a return on the business on top of clinical pay, plus business risk.
The premises permit
Separate from who owns the entity is who is accountable for the site, and this catches people out because it survives even where ownership is unrestricted.
State schemes commonly require a licensed veterinarian to be named on the premises permit as the responsible licensee on-site.
That is a personal accountability mechanism: someone with a licence is answerable for what happens at that location.
The practical consequence for a manager or a non-veterinarian owner is that certain obligations cannot be absorbed into the business structure.
In a state whose scheme requires one, there has to be a named veterinarian, and their exposure is real — which is worth understanding before assuming a management arrangement moves all the risk.
So how do corporate groups own practices in those states?
This is the question the consolidation story turns on, and the answer is a two-entity structure.
A professional corporation (PC) — owned by a licensed veterinarian, as the state requires — holds the practice itself.
Alongside it sits a management services organization (MSO), an ordinary business entity with no licensing requirement attached — the non-veterinarian investor's side of the arrangement.
The veterinarian-owned PC then leases or sells its non-medical assets to the MSO, and contracts with it for management services.
The clinical entity stays in veterinary hands on paper and in law; the operational and financial substance moves to the MSO.
The result is that a non-veterinarian owner participates in the financial returns of the practice through the MSO without themselves practising veterinary medicine or owning the clinical entity.
The shift away from individually owned practice shows in the census data: AVMA counts individual proprietorships at 19.7% of U.S. veterinary practices in 2012 and 9.9% in 2022.
What the MSO can and cannot touch
The line the structure is built to respect is the one worth understanding, because it is also the line that determines whether an arrangement holds up.
The licensed veterinarian keeps control over clinical decisions — the professional judgment the doctrine exists to protect — and in the standard structure remains the clinic's owner and the other veterinarians' employer.
That is the clinical side of the wall.
The MSO side takes the non-regulated assets — everything that is not the practice of veterinary medicine — and the management of the business around them, with the financial returns that flow from managing them.
Where arrangements come apart is when the management side reaches past the business and into how medicine is practised.
The caution the law firms that structure these deals attach is blunt: overly controlling management agreement terms can themselves amount to prohibited corporate practice.
The structure depends on the separation being real rather than nominal, which is exactly the tension the corporate versus private practice debate is about from the clinician's side.
Why this is contested
It would be misleading to present the PC/MSO structure as settled and uncontroversial, because it is neither.
The open question it will always face: how much of the doctrine's purpose survives when the economic substance of ownership sits with a non-licensee?
The law firms that build these structures attach the same caution themselves — over-controlling management agreements can cross into prohibited corporate practice, so the arrangement holds only while the separation is genuine.
The statutes police that line in their own ways.
Some permit lay ownership but bar lay control of clinical judgment outright; others let a corporation own the facility but require a named, licensed veterinarian to be responsible for it.
Where the line sits in your state is the first thing to establish, not the last.
Colorado's 2025 veterinary-professional-associate statute is a fresh example of a legislature redrawing these lines: it bars corporations and employers from requiring a veterinarian to supervise a veterinary professional associate as a condition of continued employment, an explicit statutory wall between employer control and veterinary supervision decisions (tracked in what a veterinary professional associate is).
If you're buying, selling, or structuring
These are the questions that determine whether a deal is even possible in the shape you are imagining.
What the practice is worth and how a sale actually runs are their own subjects — how veterinary practices are valued and how selling a practice works cover them — while this page stays on the threshold question of who is allowed to own.
- Does your state restrict practice ownership to licensed veterinarians?
- If so, does it restrict ownership only, or control as well — and how is control defined?
- Who will be named on the premises permit as the responsible licensee?
- If an MSO is involved: exactly which assets and functions sit on which side?
- Who controls patient records, and where do they live?
- Who sets clinical protocols, and who can override them?
- Who supervises the veterinarians, in law and in practice?
- Has an attorney who structures veterinary transactions in your state reviewed it — with a CPA?
The last one is not boilerplate.
Ownership structure interacts with tax treatment, licensure, and the enforceability of everything built on top of it — which is why the review happens before anything is signed, not after.
If you're an associate thinking about ownership
The doctrine cuts in your favour here, and it is worth knowing why.
In states that reserve ownership to licensed veterinarians, your licence is not merely a qualification to practise — it is the qualification to own.
That is a structural advantage over anyone with capital but no licence, and it is a large part of what makes a route to ownership a real differentiator of independent practice.
It also means that in those states only a licensed veterinarian can own a retiring owner's clinical entity outright, so a non-veterinarian buyer has to come in through a management structure like the PC/MSO arrangement above — which shapes both valuation and how transitions get structured.
What it does not mean is that ownership is straightforward.
Valuation, financing, and the buy-in mechanics are their own subject — and the practical realities of running the business are the substance of the practice manager's role.
Browse open veterinarian positions and note which practices mention a path to partnership; it is one of the clearer signals of how an independent practice thinks about its future.