How to Measure Time to Sign and Time to Settle by Lead Source at Your PI Firm

Every marketing director at a personal injury firm knows the basics: cost per lead, cost per case, conversion rate. But there are two timing metrics that most firms never measure — and they fundamentally change how you evaluate lead sources.

Time-to-sign measures the days between a lead arriving and a retainer being executed. Time-to-settle measures the days between that retainer and the case reaching resolution. These are not operational curiosities. They are financial metrics that determine when your firm sees revenue from the dollars it spent today.

Defining the Two Metrics

Let's be precise about what we're measuring, because most firms conflate these into a single “case duration” number that hides the actionable insight.

Time-to-sign is driven by your intake process, lead quality, and speed-to-contact. It is largely within your control. A firm with a disciplined intake operation can move a qualified lead from first contact to signed retainer in 3 to 7 days. Firms without that discipline often take 14 to 30 days — and lose 40% or more of viable leads in the process.

Time-to-settle is driven by case complexity, treatment duration, litigation strategy, and opposing counsel behavior. It is less within your control, but it varies dramatically by lead source — and that variation matters more than most firms realize.

Why These Metrics Are Financial, Not Operational

Consider two lead vendors, both delivering cases at $3,500 cost per signed case. On the surface, they look identical. But look at the timing:

Both vendors cost $3,500 per signed case. But Vendor A returns revenue in roughly 9.2 months from lead arrival. Vendor B takes 15.7 months. That is a 6.5-month difference in when your firm sees a return on each $3,500 invested.

Multiply that across 20 cases per month at $3,500 each, and you have $70,000 in monthly acquisition spend that either returns in 9 months or 15 months. Over a year, the cash flow difference is substantial — roughly $455,000 in capital tied up longer than necessary if you're allocating equally between the two vendors.

How a 60-Day Difference in Time-to-Sign Changes ROI

Time-to-sign has a compounding effect that most marketing directors underestimate. Every additional day between lead arrival and retainer signing increases two costs simultaneously.

First, it increases lead waste. Leads that sit in an intake queue for 14+ days have dramatically lower conversion rates. The prospect finds another firm. Their motivation fades. They decide not to pursue the claim. A lead that cost $300 to generate becomes a $0 return.

Second, it delays the start of the settlement clock. A case cannot begin progressing toward resolution until the retainer is signed. Every day of intake delay is a day added to your total time-to-revenue.

That $252,000 annual difference is not hypothetical. It is the revenue you leave on the table when leads that cost real money to generate never convert because your intake process is too slow — or because a specific vendor's leads require a different approach than your standard workflow.

Calculating Time-to-Sign by Lead Source

The calculation is straightforward once you have the data. The challenge is actually capturing lead arrival timestamps and retainer execution dates in a way that connects back to the original source.

Calculating Time-to-Settle by Lead Source

Time-to-settle is harder to measure because the data arrives slowly. A case signed in January 2026 might not settle until October 2026 or later. You need a system that maintains the attribution link across that entire timeline.

What the Benchmarks Look Like

Based on data from PI firms spending $100K to $500K per month on lead generation, here are typical ranges for these metrics:

The spread within those ranges is where the vendor-level insight lives. Your best lead source might deliver cases with a 7-day median time-to-sign and 9-month median time-to-settle. Your worst might be at 21 days and 16 months. On cost per case alone, they could look similar. On a time-adjusted basis, one is dramatically more profitable.

Using These Metrics to Make Better Budget Decisions

Once you have time-to-sign and time-to-settle by vendor, you can make three decisions that cost per case alone cannot support:

1. Prioritize fast-converting vendors when cash flow is tight. If your firm needs to improve near-term cash position, shift budget toward vendors whose cases resolve faster — even if their cost per case is slightly higher. A $4,000 case that settles in 8 months generates cash sooner than a $3,200 case that takes 16 months.
2. Identify intake process problems by source.If Vendor C's leads consistently take 20+ days to sign while Vendor D's take 5 days, the issue may not be lead quality. It may be that Vendor C's leads require a different intake approach — different call scripts, different follow-up cadence, or a different rep assignment.
3. Calculate true annualized ROI. A vendor that delivers $42,000 average settlements at 10-month average time-to-settle produces a higher annualized return than a vendor with $48,000 average settlements at 18-month time-to-settle. The math is simple once you have the data.

What Makes This Measurable

The reason most PI firms don't track time-to-sign and time-to-settle by lead source is not that the metrics are complicated. The formulas are basic subtraction. The problem is data continuity — maintaining the link between a marketing source and a case outcome across months or years of case lifecycle.

Spreadsheets can track these metrics for a few dozen cases. They cannot maintain the attribution reliably across 200+ active cases from 5+ lead vendors with 6 to 18 months of settlement lag. That is where the system breaks.

RevenueScale's case analytics layer maintains source attribution from lead arrival through settlement, automatically calculating time-to-sign and time-to-settle by vendor, case type, and market — so you can see which sources deliver the fastest path to revenue, not just the cheapest path to a retainer.