Where Legal's Social Dollar Actually Goes

Legal pays $104.58 for a single Facebook lead. That’s nearly five times the $21.98 average across every other industry on the platform. No other category WordStream tracks pays close to that price.

Look at that number alone and the easy call is to cut the budget. A CMO staring at a $104.58 CPL will ask why the firm still funds it. Search or CTV suddenly look like the more disciplined buy. That read costs firms the cheapest reinforcement layer in their funnel. Law firm marketing social media budgets don’t fail because the channel is broken. They fail because they’re judged on the wrong job.

This study checks the assignment, not just the price. We compared legal’s own Facebook cost benchmarks against the retargeting economics that already run inside a funnel. Then we checked what the industry’s most-cited ad-spend census actually measures. The question isn’t “does social work.” It’s “what job should the social dollar do.”

The Price Tag Nobody Reads Correctly

WordStream’s 2024 industry benchmarks put Attorneys & Legal Services at $104.58 average cost per Facebook lead. That’s against a $21.98 cross-industry average, a 1.61% click-through rate, and a 7.57% conversion rate.

Judged as a stand-alone lead source, that number kills the channel. A firm buying Facebook leads for intake pays nearly 5x what a home-services or retail advertiser pays for the same lead. Compared cold against a search campaign at similar volume, social loses that fight every time.

But that’s the wrong comparison. Search and social aren’t competing for the same job. Search captures a person actively looking for a lawyer, right now. Social’s price tag only looks irrational if you’re asking it to do search’s job.

What the Industry’s Own Benchmark Doesn’t Measure

Here’s what nobody publishes: an actual social-specific ad-spend total for legal. We checked the American Tort Reform Association’s Legal Services Advertising in the United States 2020-2024 report. It’s the most detailed public census of legal ad spend that exists. It tracked $2.5 billion across more than 26.9 million ads in 2024.

Read the fine print on that report and the gap shows up fast. Its “Digital” category is defined to exclude social media, a line repeated four separate times in the methodology notes. TV, out-of-home, radio, print, and non-social digital all get a dollar figure. Social gets nothing. The industry’s own tracking body has a blind spot on the exact channel firms are told to cut over CPL.

That gap matters more than any specific percentage would. Nobody can honestly claim to know what share of the legal ad dollar goes to social. Nobody with a comprehensive dataset is counting it. Firms deciding whether to fund social are making that call without the one number that would settle it.

The Job Social Is Actually Built For

Without a clean allocation number, the better question is what social does well inside an existing search-and-CTV funnel. The retargeting math answers that. Industry benchmarks put social retargeting CPMs in the $5 to $15 range. Cost per click on competitive personal injury search terms runs $126 to $660-plus. A retargeting impression costs a fraction of a cold search click, and it reaches someone who already showed up once.

That’s the job: reinforcement, not prospecting. A visitor who leaves a firm’s site without calling isn’t gone. They’re an audience social can re-engage at search-CPC-level economics. Judged as the second touch instead of the first, the $104.58 CPL stops being the relevant number. That’s not the job social is doing.

The referral and relationship side runs the same logic. High-growth professional services firms invest meaningfully more in relationship-building content than their slower-growing peers. For legal, LinkedIn is where that referral network gets built and maintained. That’s a different job than paid prospecting, one search can’t touch.

What This Means for the Budget Conversation

None of this predicts where legal ad spend goes next. It’s a read on what the number in front of a CMO is actually telling them. A $104.58 CPL is a bad number for a prospecting channel. It’s a non-issue for a reinforcement one. The firms treating social as the second touch under search and CTV aren’t fighting that price tag. They’re not paying it for the job it’s bad at.

The practical shift is small. Stop scoring social on cost-per-lead against search. Start scoring it on what it costs to re-engage a visitor who already raised a hand. That’s the reinforcement layer a firm’s other channels already pay to fill. It costs less than another point of cold-search spend. For the execution mechanics and the funnel math, see the full Facebook advertising guide. The retargeting setup and LinkedIn referral play cover the how.

Social’s price tag is high. Its job was never prospecting.

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Legal Facebook CPL, CTR, and cross-industry benchmark figures are from WordStream’s 2024 Facebook Advertising Benchmarks. Legal industry ad-spend totals and category methodology are from the American Tort Reform Association’s Legal Services Advertising in the United States 2020-2024 report (March 2025). Retargeting CPM and search CPC figures are industry benchmarks from IAB’s 2025 Digital Video Ad Spend and Strategy Report. Relationship-content investment figures are from Hinge Research Institute’s High Growth Study 2025. Taqtics tracks $141.6M in monthly legal advertising spend across 35 US markets. That panel does not track social spend and is not a source for any social-specific figure in this piece.