What Cost Per Signed Case Really Means for Your Law Firm
Most law firms track cost per lead. The number that actually matters is cost per signed case — and most firms have no idea what theirs is.
Category: Measurement | 2026-08-12 | 5 min read | By Lotus Signal
The number most firms track
Most law firms running Google Ads or Local Services Ads track cost per lead. They know what they are spending and roughly how many form fills or calls come in. What they almost never know is how many of those leads became signed clients — or what each signed client actually cost to acquire. That gap is where most marketing budgets leak.
Why cost per signed case is the number that matters
A lead is not a client. A click is not a lead. The only number that connects marketing spend to business outcomes is cost per signed case: total marketing spend divided by the number of clients who actually signed. Everything else is a proxy. When you know your cost per signed case by channel and by practice area, you can make real decisions about where to spend, where to stop, and where to push harder.
How to get there
The measurement layer has to go in before anything else. Call tracking, form attribution, and a firm definition of what counts as a qualified inquiry. Then the marketing data has to be connected to intake — someone at the firm has to close the loop on which inquiries signed. Once that loop is running, cost per signed case becomes a monthly number on a scorecard, not a guess.
- Install call tracking and form attribution before spending on ads
- Agree on what a qualified inquiry means for your practice
- Connect marketing data to signed-case data through intake
- Report cost per signed case by channel and practice area every month
What changes when you can see it
Firms that know their cost per signed case stop arguing about whether Google Ads is working. They stop wondering if SEO is worth it. They look at the number and decide. That is the whole point of the measurement layer: it replaces opinions with a scoreboard.