How to choose a marketing agency: 15 questions and the red flags

The most common mistake is shopping for an agency before defining the job. Write a one-page brief first that covers:

• The business outcome in numbers: revenue, qualified leads, store sales, bookings. Not "more awareness."
• The current state: what channels you run, what they cost, what converts, what is broken. If you do not know, say so; a good agency will treat that as the first deliverable.
• Scope boundaries: what you want them to own versus what stays in-house.
• Budget range for fees and, separately, for media.
• Decision timeline and who signs.

Then decide whether you need a specializt or a connected team. If one channel is the constraint, buy a specializt. If the problem spans your brand, your website, how leads are handled and how media is bought, a single team that connects those pieces will save you from three vendors blaming each other.

Ask the same questions of every shortlisted agency and score the answers. Here they are, grouped by what they test.

Questions that test how they think

1. What do you think is actually wrong with our marketing today, based on what you have seen? A strong agency will have looked at your site, your ads and your reviews before the call and will have a hypothesis. A weak one will pitch their standard package.
2. What would you do in the first 30 days, and what would we see by day 90? You want specific steps and a realistic answer about timing. Promises of quick results in organic search or brand are a warning.
3. What would make you tell us to spend less? Agencies paid on a percentage of media have a conflict of interest here. Listen for an honest answer about saturation and marginal cost.
4. Which part of our funnel would you fix before scaling spend? If the answer is "none, let's launch campaigns," they are planning to send paid traffic into whatever is broken.

Questions that test evidence

5. Show us a case where the result was measured in revenue or qualified leads, not clicks or impressions. Ask how the result was attributed and what else was happening at the time.
6. Show us one that did not work, and what you changed. Everyone has one. An agency that cannot name one is either new or not being straight with you.
7. Can we speak with two current clients of similar size? Then actually call them and ask about responsiveness, surprises on invoices and what happened when results dipped.
8. How do you measure your own work, and how will we see it? You want a shared dashboard tied to your own analytics and CRM, not a monthly PDF built from platform screenshots.

Questions that test the team and the process

9. Who will do the work day to day, and how many other accounts do they handle? The people in the pitch are frequently not the people on the account. Ask to meet the account lead before signing.
10. How much of the work is done by AI tools, and who reviews it? AI-assisted work is normal in 2026. Undisclosed, unreviewed AI output is not. You want a clear answer about human review, brand voice control and fact-checking.
11. How do you handle creative production: in-house, freelance or our responsibility? Paid media without a creative pipeline stalls in six to eight weeks.
12. What do you need from us each week, and what happens if we are slow? This surfaces how dependent results are on your team's availability.

Questions that test compliance and risk

13. How do you stay compliant with TCPA for SMS, CAN-SPAM for email, FTC endorsement rules for influencers and state privacy laws? If they look blank, you carry the legal exposure, not them.
14. Who will own the ad accounts, analytics, domains and creative files? The only acceptable answer is you.
15. What does the exit look like? Notice period, hand-over of assets and documentation, and whether anything stops working when they leave.

• Guaranteed rankings, guaranteed ROAS or guaranteed lead volume. Nobody controls the auction or the algorithm. Guarantees are a sales tactic.
• They want to run ads from their own ad account. You lose history, pixel data and leverage the day you leave.
• Fees quoted as a percentage of media with no cap. The incentive is to spend more, not better.
• No questions about your margins, close rates or capacity. An agency that does not ask how much a customer is worth cannot set a sensible target cost.
• A proposal that arrived before the discovery call ended. It was written before they met you.
• Reporting built on platform metrics only. Clicks, impressions and platform-reported conversions are the agency's numbers. Revenue and qualified leads in your CRM are yours.
• Long lock-in with no performance exit. Twelve-month contracts with no early termination clause and auto-renewal are a red flag for smaller businesses.
• Vague answers about who does the work. Account churn and offshore handoffs are fine if disclosed and managed. Hidden, they are a problem.

Most agency agreements are written by the agency. These are the terms worth negotiating, in rough order of importance.

1. Ownership. All accounts, data, domains, code, content and creative are owned by you from the moment they are created. The agency is granted access and loses it on exit.
2. Scope and deliverables in writing. Named channels, cadence of output, response times. "Ongoing optimization" is not a deliverable.
3. Fee structure. Flat retainer or clearly defined hours. If any performance component exists, tie it to revenue or qualified leads in your system, with a cap.
4. Term and exit. 30 to 60 days notice after an initial 90-day or 6-month period. No auto-renewal longer than month to month. Full hand-over of documentation, access and files included at no additional charge.
5. Reporting. Monthly at minimum, from your own analytics and CRM, with agreed definitions of a lead and a sale.
6. Compliance responsibility. The agency warrants that its work follows applicable advertising, privacy and messaging rules, and names who is responsible for consent capture and record keeping.
7. Subcontracting and AI disclosure. Any subcontracting or substantial AI generation is disclosed, and the agency remains responsible for quality and accuracy.
8. Confidentiality and non-compete within your category for the term, if you are in a competitive local or niche market.

Keep it to four to six weeks.

• Week 1: write the brief, shortlist four to six agencies from referrals and from agencies whose own marketing you respect.
• Week 2: 45-minute discovery calls using the 15 questions. Cut to three.
• Weeks 3 to 4: written proposals with a 30-60-90 day plan and a pricing breakdown. Give each agency the same access to your analytics for a few days so proposals are grounded.
• Week 5: reference calls and a meeting with the actual account team.
• Week 6: negotiate terms and sign with a 90-day review checkpoint written in.

Score each agency on thinking, evidence, team and terms. Price is the fifth factor, not the first.

We expect to be put through this process and we built our method to pass it. Discover: before any proposal, we audit the live funnel, from positioning and site to tracking, lead handling and media, and we tell you what we think is broken, including the parts we would not be hired to fix. Plan: the proposal is a 30-60-90 day plan with named deliverables, a measurement definition agreed with you and a budget split between fees, media and production. Build: because brand, growth, web and automation sit in one team, the landing page, the ad creative and the lead-routing automation are built to the same plan rather than by three vendors. Improve: a shared dashboard tied to your analytics and CRM, monthly reviews and a standing invitation to spend less where marginal return has gone. Everything you pay for lives in accounts you own. See digital strategy and advisory and performance marketing.

A representative example is the Real Estate Lead Engine. The client needed positioning, a landing experience, lead generation and a clean hand-over to sales as one funnel rather than as four separate vendors. The engagement pattern was exactly what this article recommends: discovery first, a plan with defined lead quality, build across web and media together, and measurement that followed leads into the sales process rather than stopping at the form.