The sample post looks fine. It's about what to do after a car accident, it reads smoothly, and it could have been published by any firm in your state without changing a word. That is the real problem with shopping for a content marketing agency for law firms. Polished writing is easy to buy. What you can't tell from a sample is whether the writer knows your practice, your jurisdiction and your bar's advertising rules, or whether any of it will bring in a client who signs an engagement letter. This page helps you decide what you want content to do, how to judge an agency's work, and what to set up so you can tell whether it's working.
Decide what the content is supposed to do
Content for a law firm does several different jobs, and an agency that doesn't ask which one you want is guessing. Some content earns trust with someone who was already going to call you. Some captures a person who is searching a legal question tonight. Some keeps your name in front of past clients and referral partners. Each job needs a different kind of writing and a different measure of success. Pick the one that matters most to your firm this year, and say so before the first call.
| Job for the content | What it looks like | What to look at afterward |
|---|---|---|
| Reassure people who already know your name | Attorney bios, process pages, plain answers to what happens after a first call | Whether new callers mention reading the page |
| Catch people searching a specific problem | A page on one legal situation in one city or county, written for that situation | Form fills and calls from those pages, not page views |
| Stay known to referral partners and past clients | Short updates, a periodic email, a local explainer | Replies, referrals and reactivated contacts |
Why this search is small and spiky
Across the whole cluster of this topic, which merges 7 distinct queries, people search about 80 times a month. The exact phrase «content marketing agency for law firms» swung from 170 searches in September 2025 to just 10 in October. Searches like this come mostly from firm owners and administrators who are shopping, not from the public, and they arrive in bursts, often when a partner meeting or a budget cycle forces the question.
Two things follow. First, the pool of agencies that specialize here is small, and they all find you through the same few searches. Advertisers pay as much as $140.14 for a top-of-page click on this topic, which is a ceiling and not an average, but it tells you how hard vendors compete to reach you. That cost is recovered somewhere, so ask how the agency finds its own clients and what its own numbers look like. Second, because the search is so uneven, don't read a quiet month as a sign that the market is calm or that no one else is looking at your practice area. Your own clients' searches are what matter, and those follow your practice.
Judging the sample before the pitch
Ask for two or three real pieces written for firms in your practice area, not a portfolio of general legal topics. Read them the way a prospective client would, then the way your most skeptical partner would. Does the piece name the actual steps in your state? Does it say what the law firm does and doesn't do, or does it make claims no lawyer would sign? Does it answer the question in the title in the first few lines, or wander?
Who writes it, and who signs off
With smaller agencies, the person on the sales call is often not the person writing. Ask who drafts, what that person has written about law before, and how your attorneys' knowledge gets into the piece. The strongest content usually starts from a short interview with a lawyer at your firm, about the questions clients actually ask in the first meeting. If the process starts with a keyword list and ends with a draft you've never talked to anyone about, expect generic pages.
Also settle the review path in writing: who approves, how long approval takes, and what happens when a draft sits in a partner's inbox for weeks. Most stalled content programs at small firms stall here, not at the writing.
Measuring work that pays slowly
Content rarely produces matters right away, so firms tend to judge it by traffic, which is the wrong test. A page can bring in hundreds of readers who never call. Decide up front which actions count: a contact form submission, a click-to-call, a scheduled consultation. Then confirm each of those is actually recorded and tied to where the visitor came from. Also ask your intake staff to note how each new caller found you, because phone calls often don't show up in web analytics unless call tracking is set up.
If you can't yet see form fills and calls in your analytics, fix that before you spend on content, or the first quarterly report will be a slide of impressions and no way to check it. A tracking audit is a common, modest job, and it's one an agency can do for you without a long retainer.
Where an agency fits, and where it doesn't
An outside agency makes sense if nobody at your firm has the time to plan, edit and publish steadily, and if you're willing to give an attorney a little interview time each month. It makes less sense if your website has no way to record inquiries yet, if you can't say which practice area you want more of, or if the pitch promises rankings on a fixed date. Some firms do fine with one in-house person and a freelance legal editor. Others hire an agency just for planning and analytics while the firm writes its own pages. Any of these can work.
This week, pick the practice area and the action that counts as success, write down who at your firm will review drafts, and check that inquiries are being recorded. Then ask each agency you talk to the same question: show me a piece you wrote for a firm like mine, and tell me who approved it. Compare the answers, not the pitches.