There's a question almost nobody asks a marketing vendor before signing, and it's the only one that matters at the end: what do I keep if I leave?
Not "can I leave" — most vendors will eventually tell you about their terms, and some have learned to advertise month-to-month like it's a virtue rather than a baseline. Can-I-leave is the easy half. What-do-I-keep is where the industry quietly makes its money, and it has three parts. The website. The ad account. The data. A practice can lose any of the three and most lose at least one without ever knowing it was on the table.
Start with the website, because it's the loss everyone eventually hears about. A large share of veterinary marketing vendors build your site on their platform — their hosting, their CMS, their templates, sometimes their domain configuration. As long as you're paying, this is invisible. The day you stop, it isn't. The site you've been handing out on business cards for six years turns out to be a rental, and the "migration" conversation begins: what you can export, what you can't, what it costs, how long the old site stays up while the new one gets built. Some vendors are gracious about this. The point is that you're negotiating for your own storefront, and graciousness is the ceiling of what you can hope for.
And ownership questions don't stay settled, because vendors don't stay put. This past December, GeniusVets — one of the best-known marketing platforms in this industry, founded by a veterinarian — was acquired by ProSites, a private-equity-backed rollup that owns marketing platforms across dentistry, medicine, and veterinary care. I have no reason to believe anything bad happens to the practices on that platform. That's not the point. The point is that every practice with a site on it woke up with a new landlord they never chose, new owners with a portfolio to consolidate, and whatever promises came with the old regime now resting on the new one's discretion. When your website lives on a vendor's platform, you don't hold an asset. You hold a dependency — and dependencies get acquired.
The ad account is the quieter version of the same trap, and in some ways the worse one. Plenty of agencies run your Google Ads out of their account — their login, their billing, their structure, with your card attached. It works fine until you leave, and then you discover what leaving means: the campaigns, the keyword history, the conversion data, the years of optimization the platform learned from your spending — none of it is yours to take. You start over at zero. Google's own account structure makes the right way easy: the practice owns its account; the agency works inside it through manager access it can be granted and un-granted in a minute. When a vendor doesn't set it up that way, it's worth asking why. The generous reading is habit. The accurate reading, often enough, is that your switching cost is part of their retention strategy.
Then the data — the least visible of the three and the one I'd argue matters most, because it's the only one that compounds. Which campaigns produced which calls. What a new patient costs in your city, in your niche, in your seasonality. Where the wasted spend went. If your vendor's reporting lives in their dashboard and dies with your contract, then every year you spend with them, you're building an asset you'll never hold. The measurement is the product — and if you can't take the measurement with you, you never owned the product, whatever the invoice said.
Here's the test, and it costs one email: ask your vendor — or any vendor pitching you — to confirm in writing that the domain, the site files, the Google Ads account, and the full performance history are yours, transferable on departure, at no fee. Watch what comes back. A yes in plain language is a good sign about everything else they'll ever tell you. A paragraph about proprietary platforms and transition services is also an answer, just to a question you now understand better.
For the record, my version: your site is built on your domain, on hosting you control. The ad account is yours from the first day; I work inside it through standard manager access, and revoking me takes about a minute. Every report I send is yours to keep. Leave anytime; take everything. I set it up this way not because I'm generous but because I'd rather be retained by the reports than by the exit costs — and I'd encourage you to hold every vendor, me included, to exactly that standard.
A note on the sources: the GeniusVets acquisition by ProSites was announced in December 2025 and is public record. Statements about how other vendors structure hosting, ad accounts, and reporting describe patterns common across the industry, not any named company's terms — check any specific vendor's contract, because that's the entire point.