Here is a question I would ask before almost any other, and hardly anybody in this industry can answer it quickly.
If you changed brokerages next month, what would you take with you?
Not your clients. You know that answer. Your advertising account. Your tracking pixel. The audiences you have spent two years building. The learning inside a campaign that finally started working in March.
Most agents assume the answer is "all of it," because they are the ones who paid for it. That is very often not the answer.
The distinction the whole thing turns on
Being a user on an account is not owning the account.
It feels identical right up until the relationship ends. You log in, you see the numbers, you make changes, nobody stops you. Access looks exactly like ownership from the inside.
The difference only appears at the exit, and at the exit it is total. Access ends when somebody removes you. Ownership does not.
What is actually in there
People underrate this because they think of the account as a settings page. It is not. It is an asset that took years and real money to build.
The pixel history on your website, which is what makes retargeting work at all. The audiences built from everybody who ever looked at one of your listings. Conversion history the platform uses to decide who to show you to. Campaign learning that is the accumulated result of every pound you have ever spent.
None of that is portable by copying a spreadsheet. It lives inside the account. If the account is not yours, then the thing your marketing budget actually purchased over three years belongs to whoever holds the login, and you start again from zero somewhere else.
Starting from zero is not a metaphor. A new pixel knows nothing about anybody.
Why this industry has it worse
Because movement is normal here. Agents change brokerages. Teams form and dissolve. That is not a failure state, it is how the business works.
Every one of those transitions is an ownership event, and almost none of them are treated as one. People negotiate the commission split in enormous detail and never once ask whose name is on the advertising account.
And the vendor arrangement compounds it. A marketing company sets everything up for you, efficiently, under their own umbrella, because it is faster for them. Nobody is being dishonest. Nobody mentions it either, and you do not find out until you leave.
The three questions
Ask these of your brokerage and of anybody running your advertising. In writing, and now, rather than at the exit.
Whose legal name is on the advertising account, and am I an owner or a user? There is a specific answer. Make them say it.
Who owns the pixel on my website, and where does the data it collects go? If the pixel belongs to a vendor, your audience does too.
If we parted company tomorrow, what exactly do I keep? Not "you can have your data." What, in what format, and how long does it take. Vagueness here is a complete answer.
How to fix it, which is easier than people fear
Create the accounts in your own name. Grant access to whoever runs them. That is the whole arrangement, and any competent partner will agree to it immediately, because it costs them nothing except the leverage.
Watch the reaction closely. Somebody who hesitates is telling you what the current arrangement is actually for.
Any road up
You buy the advertising. You should own what it built. Those two sentences ought to be the same sentence and in this industry they routinely are not.
Go and find out whose name is on the account. It takes an afternoon, and it is the single most valuable afternoon in this whole series.