What a Criminal Defense Mailer Actually Costs, Start to Finish
Everyone quotes the price per postcard. Almost nobody walks the number all the way through to cost per signed client — which is the only number that actually tells you whether a campaign worked. Here's the full chain, with industry-typical figures at each step, and then the same math run against Revenue Spark's actual pricing for comparison.
Step 1: What the mail itself costs
Ballpark industry ranges, not any specific vendor's rate card:
- Postcard (6x9): roughly $0.40–$0.70 per piece, fully printed and mailed.
- Letter: roughly $0.65–$1.20 per piece, fully mailed.
- List sourcing (pulling and validating arrest/court records): commonly in the $0.25–$0.85 per record range on top of the mail cost itself.
Take a mid-range postcard at $0.55/piece plus $0.50/record for the list, and a batch of 1,000 pieces costs roughly $1,050 before a single person responds.
Step 2: How many people actually call
Industry-reported response rates for criminal-defense mail targeting arrest records commonly fall in the 1.5–3% range — call it 2% as a working midpoint. On 1,000 pieces, that's ~20 calls.
Step 3: How many calls turn into a signed client
This is the step most cost breakdowns skip, and it varies the most by firm — intake process, speed to answer, and how qualified the caller is all move this number a lot. A commonly cited rule of thumb in legal marketing circles is that roughly 30% of qualified intake calls convert to a signed client with a reasonably prompt, well-run intake process. Treat that as an illustrative benchmark, not a guarantee — your own number could be meaningfully higher or lower.
At 20 calls and a 30% close rate, that's 6 signed clients.
Step 4: Cost per signed client
$1,050 spent, 6 clients signed: ~$175 per signed client — and that's before your own or your staff's time sourcing the list, designing the piece, and handling intake.
What Revenue Spark replaces in that chain — and what it doesn't
To be clear about what we actually do: Revenue Spark doesn't print or mail anything. We don't run your campaign for you. What we do is Step 1's list half — sourcing and matching new Utah criminal filings to the categories and counties you've chosen — and deliver each match to your inbox directly, with the best contact information we have on file. Whether you then call, email, or mail that person is entirely your decision; that step, and its cost, is unrelated to us.
Pricing reflects that narrower scope: $0.70 per referral delivered, no retainer, no minimum. You choose a monthly cap (50 up to 1,000) and pay only for what's actually delivered that month. There's no printing or postage in that number because we're not the ones printing or posting anything — it's the cost of the sourced-and-matched contact alone.
One honest difference worth naming: a mail "response" is the recipient calling you after your letter reaches them. A Revenue Spark referral is a matched contact delivered to you to reach out to first — the direction is reversed, so your close rate on that outbound contact may differ from a close rate on inbound calls, and this isn't a clean apples-to-apples swap. With that caveat, if you apply the same illustrative 30% close-rate benchmark from above to 40 referrals delivered in a month ($28 total), that's ~12 signed clients — a little over $2 per signed client for the sourcing/matching step, versus the ~$175 figure above, which also has to cover printing and postage on top of sourcing.
Try the math on your own numbers
Take your last mail batch's actual cost and response count and run it through the same four steps — cost per piece, response rate, close rate, cost per client. Then separate out what you're really paying for sourcing and matching versus the mail itself. If that split surprises you, check if your county has an opening — every Utah county is capped at 5 attorneys, so it's worth checking sooner rather than later.