The demand letter in a catastrophic injury case does work the complaint cannot. It sets the carrier's reserve, frames the adjuster's authority request to their committee, and seeds the trial themes a jury will hear two years later. In a soft-tissue rear-ender it might be five pages of medicals and a number. In a quadriplegia case or a wrongful death involving a minor child, it is a 40 to 80 page document that has to function simultaneously as an exposure analysis, a settlement brochure, and a coverage demand.
What changes with the case profile is not the existence of those functions but their ordering. A demand built around a $9 million life care plan reads nothing like a demand built around a 19-year-old's loss of a dominant hand. Both can be catastrophic. Both can resolve in the same range. The structure that gets there is different, and getting it wrong either leaves money on the table or hands the defense a frame to exploit at mediation.
The Two Damage Profiles
Catastrophic cases sort, roughly, into two buckets. Economic-dominant cases are those where future medical care, attendant care, lost earning capacity, and home modifications combine into specials that swamp any reasonable pain-and-suffering award. A 34-year-old machinist rendered C5 incomplete with a $12 million life care plan and $4 million in lost earning capacity is the prototype. Non-economic-dominant cases are those where the economic loss, while real, is smaller than what a jury is likely to award for the human harm. A retired widower who loses a leg below the knee has limited wage loss and Medicare coverage for ongoing care, but the disfigurement, mobility loss, and depression exposure can drive an eight-figure verdict.
The MICRA cap (Civil Code § 3333.2) only constrains non-economic damages in medical professional negligence cases, and AB 35 (2022) raised that cap on an annual schedule that reaches $750,000 in injury cases and $1 million in wrongful death cases over a decade of increases. Outside MICRA, California places no statutory cap on non-economic damages, which is why the structural choice matters: in a non-MICRA non-economic-dominant case, the demand has to give the adjuster permission to value pain at a number their reserve model does not produce on its own.
When Specials Lead: The Economic-Dominant Structure
When the life care plan is the engine, lead with it. The opening pages after the cover summary should walk the carrier through (1) mechanism of injury, (2) the LCP author's credentials and methodology, (3) present-value reductions using a defensible discount rate, and (4) the vocational economist's earning capacity analysis. Save the day-in-the-life narrative and family declarations for later in the document. The adjuster reading this demand is going to a roundtable and needs ammunition that survives a defense LCP review.
Be ruthless about supporting every line item. A claim for 16 hours per day of LVN-level attendant care at $58 per hour reads as inflated when the plaintiff is currently receiving 8 hours from a CNA at $32 per hour, unless the LCP explains the progression and ties it to specific medical necessity opinions. Defense LCPs routinely strip 40 to 60 percent off plaintiff plans by attacking exactly this kind of gap. Attach the medical foundation opinions as exhibits, not paraphrases.
Past medical specials in California are governed by Howell v. Hamilton Meats & Provisions, Inc., 52 Cal.4th 541 (2011), which limits recoverable past medicals to amounts actually paid or incurred, not billed. Corenbaum v. Lampkin, 215 Cal.App.4th 1308 (2013), extended Howell to bar billed amounts from being shown to the jury as evidence of reasonable value. Demand letters that lead with gross billed figures invite the carrier to discount the entire document as unsophisticated. Lead with the paid/incurred number, then explain any lien exposure separately. For lien-based cases the math gets harder; see our discussion of lien-based PI practice and cash flow for how to present that exposure without inflating the specials.
When the Human Story Leads: The Non-Economic-Dominant Structure
In a non-economic-dominant case, the LCP and wage loss analysis still belong in the demand, but they should not open it. Open with the client. The first ten pages should be the pre-incident life, the moment of injury, and the post-incident reality, written with the specificity that survives a defense motion to strike but reads as narrative. This is where day-in-the-life video stills, family declarations, treating physician quotes, and CACI 3905A framing belong.
The structural reason: adjusters and defense counsel reading an economic-dominant demand are looking for math errors. Reading a non-economic-dominant demand, they are looking for whether a jury will care. The document has to answer that question affirmatively in the first reading, because the reserve conversation that follows turns on the carrier's own assessment of jury appeal, not on a number the plaintiff asserted.
Use comparable verdicts and settlements sparingly and surgically. A demand that cites 15 verdicts from 2019 forward reads as desperate. Two or three carefully chosen comparators — same body part, same age cohort, same county, same insurance posture — do more work. Verdict reporters and plaintiff-side aggregators can be cited; their summaries should be cross-checked against the trial court docket before use, because defense counsel will check, and a demand that mischaracterizes a cited verdict loses credibility on every other point.
The Coverage Demand Inside the Damages Demand
In any catastrophic case, the demand letter is also doing coverage work. A policy-limits demand triggers the carrier's duty to settle within limits under Comunale v. Traders & General Ins. Co., 50 Cal.2d 654 (1958), and Crisci v. Security Ins. Co., 66 Cal.2d 425 (1967). Getting the open/close mechanics right — a deadline that gives the carrier time to investigate (typically 30 to 45 days for a clear-liability catastrophic case), a clear statement of all coverage being demanded, and an unambiguous release scope — is what preserves the bad faith claim if the carrier walks away.
A common drafting error: demanding "policy limits" without specifying which policies. In a trucking case there may be a $1 million primary, a $4 million umbrella, an MCS-90 endorsement, and an employer's non-trucking layer. A demand that says "we demand your policy limits" lets the carrier tender $1 million and argue the demand was satisfied. Name each policy by carrier and policy number, identify the specific limit being demanded, and address coverage defenses you anticipate before the carrier raises them.
CCP § 998 Considerations and Fee Disclosures
Whether to pair the pre-litigation demand with an early CCP § 998 offer once suit is filed depends on the damages profile. In an economic-dominant case where the specials alone justify a number, a § 998 offer at a defensible discount to the LCP value creates fee-shifting and expert-cost exposure that drives settlement. In a non-economic-dominant case the § 998 calculus is murkier because the recoverable number depends entirely on jury composition — serve too high and the offer does no work; serve too low and you give away positioning you need at mediation.
The interplay with fee agreement disclosures matters here too. A catastrophic case resolved under a § 998 framework can implicate the costs-versus-recovery accounting the client signed onto, and any deviation from the original fee structure has to be papered. Our coverage of § 6147 compliance walks through the disclosure mechanics that survive a later fee dispute.
Closing Mechanics: What Most Demands Get Wrong
The last section of the demand should not be a recap. It should be the offer mechanics: number, expiration, release scope, payment timing, lien handling, and Medicare/Medi-Cal compliance representations. Catastrophic settlements with future medical components require Medicare Set-Aside consideration; even where MSAs are not strictly mandated in liability cases, the carrier will want representations about Section 111 MMSEA reporting and CMS conditional payment recovery.
For California cases with Medi-Cal liens, the Ahlborn allocation analysis should be teed up in the demand so the carrier understands the net-to-client math the plaintiff is using. See our coverage of Medi-Cal lien reduction for the allocation framework. Hospital liens under Civil Code §§ 3045.1–3045.6 add another layer; the demand should address whether those liens have been perfected and the plaintiff's position on reduction before the carrier asks.
A demand letter is a document that survives its author. It will be read by the adjuster, the defense lawyer, the mediator, and possibly a jury if a Brandt fee claim follows. Structure it for the reader you need to persuade first — the math-focused adjuster in an economic-dominant case, the appeal-focused defense lawyer in a non-economic-dominant one — and the rest of the document does its work in the order the case actually requires.