1. 'Can you show me a current client's live lead data?'
Not a screenshot of impressions — actual consults booked. Vague 'engagement' and 'reach' numbers are where bad agencies hide. If they can't show booked-consult data, walk.
2. 'Do you specialize in med spas, or do you take anyone?'
Generalists who run ads for plumbers and dentists don't understand GLP-1 intent, aesthetic buyer psychology, or LegitScript compliance. Specialization is the difference between qualified consults and curiosity clicks.
3. 'How do you handle GLP-1 / semaglutide ad compliance?'
If they don't immediately mention LegitScript and current FDA positioning, they'll get your weight-loss ads flagged. This one question filters out most vendors instantly.
4. 'What happens in the first five minutes after a lead comes in?'
If the answer isn't 'instant, automated response,' they're leaving the 78%-book-the-first-responder advantage on the table.
5. 'Do you mark up my ad spend?'
You should pay the platforms directly and own your account and data. Marked-up, opaque spend is a red flag.
6. 'What's the guarantee?'
An agency confident in its system will put real skin in the game on the result — not just promise 'effort.'
7. 'Will you also work with my competitor?'
If they'll run the same playbook for the spa across the street, your results are diluted by design. One-per-market exclusivity protects you.
8. 'How will I see ROI?'
You should have a live view of spend, consults, cost-per-consult, and ROI — not a monthly PDF of vanity metrics.