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Lead Generation for Lawyers: 8 Channels Ranked by Cost Per Signed Case

By IronFlow Advertising · September 26, 2026 · 3 min read

Short answer

Rank lead channels by cost per signed case: total spend (including intake labor) divided by cases signed. Channels with built-in screening and exclusivity, such as pre-screened exclusive leads and referrals, tend to produce lower cost per signed case than channels that deliver raw inquiries, even when their price per lead is higher.

The formula

Cost per signed case = (channel spend + intake labor) / cases signed from that channel.

Intake labor matters. A channel that produces many unqualified inquiries costs more in staff time than its invoice shows.

The eight channels and what drives their cost

Exclusive pre-screened leads: higher price per lead, low screening cost, no competition for the claimant.
Referrals: low cost, limited volume, relationship-dependent.
Google Local Services Ads: pay per lead; screening falls to your team.
Organic SEO: low marginal cost once ranking, high upfront time.
Pay-per-click: expensive clicks in PI; results depend on management.
Shared leads: cheap per lead, lower sign rates from competition.
Social ads: can be cheap per inquiry, often low intent without screening.
TV and radio: high fixed cost; hard to attribute.

Why rankings differ by firm

Market, practice area, intake speed and case criteria all change results. Your own data is the only reliable ranking. Tag every lead by source in your CRM and review monthly.

Where to start

IronFlow Advertising runs most of these channels for law firms (SEO, paid search, social ads, websites, content, reputation, and exclusive pre-screened leads) and reports each on cost per signed case, so you can see which works best in your market.

IronFlow Advertising is a full-service legal marketing company for workers’ compensation, personal injury and motor vehicle accident, SSDI, and lemon law firms. We handle exclusive pre-screened lead programs, SEO and local SEO, Google Ads and Local Services Ads management, Meta and social advertising, law firm websites, content marketing, and review and reputation management, all measured on cost per signed case. Every lead we deliver is screened against your criteria, SMS-verified, delivered in real time, and never resold. Book a consultation or call (251) 233-4916.

Further reading

Frequently asked questions

What is the cheapest lead source for lawyers?

The cheapest per lead is rarely the cheapest per signed case. Referrals and well-screened exclusive leads often perform best on the metric that matters.

Should intake time be included in cost per case?

Yes. Screening unqualified inquiries is a real cost.

More in Case Acquisition Strategy

Written by the IronFlow Advertising team

IronFlow Advertising builds exclusive lead generation campaigns for law firms, lenders, insurance agencies, and home service companies. Questions about anything in this article? Call (251) 233-4916 or send us a note.

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