You do not need a brief or a spec to ask for a quote. Most requests start with a few lines: what you sell, who buys it, where you advertise now (if anywhere), and what feels stuck. If you have a monthly ad budget in mind, mention the rough range in words. If you do not, say so. That is a normal starting point too.
Specific notes get a specific reply. A request that says "Google Ads for a commercial cleaning company in three states, and calls go to a shared inbox nobody watches" gets a far more useful answer than "need leads."
What the service partner will want to know
Most first replies ask about these points, so it helps to answer them up front:
- Your monthly ad budget range
- How long you have been advertising, if at all
- Who owns the ad accounts and the website
- Your sales process after an inquiry comes in
- Which past inquiries turned into customers, and which did not
- Industries or claims that need care in ads, such as health, finance or housing
- The person who will sign off on a proposal
What to expect next
A reply from a service partner, sent to your work email. Possibly a call, if talking it through would help. Then a written proposal that you can accept, change or turn down.
That is the whole sequence. Sending the form does not sign you up for anything or share access to your ad accounts. If the work turns out to be a poor fit, the partner should tell you so, and you are under no obligation either way.