Most cases that go sideways at trial went sideways eight weeks earlier, when the file should have been wrestled into shape and wasn't. The expert demand window closes 70 days out under CCP § 2034.220. The simultaneous exchange lands at 50 days. Discovery cutoff hits 30 days before trial under § 2024.020, with expert discovery closing 15 days out under § 2024.030. Motions in limine, jury instructions, demonstratives, and witness prep all compete for the same paralegal hours. Run the countdown loosely and you arrive at voir dire still chasing trial subpoenas and arguing about exhibits in chambers.
This is the working checklist we hand associates and senior paralegals when a date holds. It assumes a moderate-injury PI case in California superior court with one defendant and a carrier fighting hard on damages. Adjust for complexity — but the spine of the schedule is statutory and does not move.
Week Eight: Demand and Designate
The expert witness demand under CCP § 2034.220 must be served no later than 70 days before trial or 10 days after the trial-setting conference, whichever is closer. If you have not yet served it, week eight is your last clean window. The simultaneous exchange that follows under § 2034.230 sets the outer boundary of every expert opinion you can offer at trial; § 2034.300 excludes any retained expert who was not properly designated.
By the end of week eight, every retained expert — biomechanics, treating orthopedist, life-care planner, vocational, economist — should have written confirmation that they will sit for deposition during the discovery window and that their report is in final form. Two failure modes appear here. The first is the treating physician whose intended opinions exceed the percipient scope; designate them as a non-retained expert with a reasonable description of opinions, because the case law on the retained-versus-non-retained line is unforgiving when an undisclosed expert tries to opine on causation or future care. The second is the late-retained rebuttal expert. Build a 20-day calendar from your exchange date and decide whether a supplemental designation under § 2034.280 belongs in the file.
If discovery surfaced lien surprises — a re-pricing fight, a new ERISA reach — week eight is when those become the expert's problem, not yours. The lien resolution workflow runs on its own track; recent California reasonableness rulings have given the defense fresh angles on the billed-versus-paid argument that your economist needs to absorb before deposition.
Weeks Seven and Six: Close Discovery, Take Defense Experts
Use these two weeks for two things: close out the case-in-chief discovery, and front-load defense expert depositions. The math is unforgiving. Expert discovery closes 15 days before trial. If you wait until week three to take the defense biomechanic, you are gambling that nothing in the deposition will require you to pull a rebuttal exhibit, draft a supplemental brief, or move to exclude. Schedule defense expert depositions in week six and demand production of the expert file, prior testimony lists, and billing records ahead of time. Cross under Evidence Code § 721 is only as good as the impeachment file your associate built the weekend before.
While the experts are being deposed, the percipient discovery should already be done. Use the remaining window for narrow follow-ups: a CCP § 1985.3 consumer-records subpoena for an updated pharmacy log, a supplemental damages-computation demand, a meet-and-confer on any outstanding RFA admissions you want read into the record under § 2033.410.
Weeks Five and Four: Motions in Limine and the Trial Brief
California has no statewide MIL deadline; local rules and the trial judge's standing order control. Most Los Angeles Superior departments want motions in limine and oppositions filed in the final-status-conference packet, which puts drafting in week six and filing in week four or three. Build a MIL inventory early and triage by what moves the verdict: golden rule, reptile, collateral source, prior accidents, defense medical exam scope, expert basis hearsay under the Sanchez line of cases, and Evidence Code § 352 challenges to graphic photographs.
The trial brief is not optional in any department that takes its calendar seriously. Use it to frame the case theory, preview the evidentiary fights, and pre-argue § 352 balancing on the photographs the defense will try to keep out. Jury instructions get filed with the brief in most departments. CACI revisions cycle annually; last year's verdict form is not this year's. Pull current CACI on every cause of action, every affirmative defense, and every damages element you intend to argue, including future medicals and any reduction-to-present-value instruction your economist will support.
Week Three: Demonstratives, Exhibits, Trial Tech
Demonstratives are produced, not improvised. By week three the day-in-the-life video should be edited and circulated to defense counsel for objection; medical illustrations should be timestamped to operative reports; the life-care plan should be in a graphics-ready format your trial tech can pull up from a tablet. Anatomical models, animations, and scaled diagrams each need a foundation witness lined up and a clean chain from author to courtroom.
Trial tech is its own line item. Whether you run your own laptop or hire a vendor, the courtroom walk-through happens this week. Confirm the department's display equipment, the cable adapters, the projector resolution, and whether the judge wants exhibits pre-loaded to a shared drive or brought on a thumb drive. The first time you find out the courtroom HDMI port is dead should not be in opening statement.
Mark exhibits in compliance with the local rule. Build two binders — yours and the court's — plus a working copy for opposing counsel. Cross-reference exhibits to your trial outline by exhibit number, not Bates range; jurors watch you fumble for paper.
Week Two: Witness Preparation
This is the week the trial lawyer disappears from the office. Witness preparation cannot be delegated and cannot be rushed. Every percipient witness gets a sit-down: deposition transcript review, expected cross topics, courtroom logistics, what to wear, how to handle objections, what "I don't recall" means under oath when you actually do not recall. The plaintiff gets the most time — typically two to four sessions including a mock cross — because the plaintiff's credibility is the case.
Experts get a separate prep call focused on demonstratives, the order of opinions, and basis testimony. If the defense expert's deposition surfaced an inconsistency with a prior published opinion, that becomes a cross outline you hand your associate to flesh out. The intake and case-management bandwidth your firm sacrifices during this week is real — see the trade-off in our staffing ratios piece — but the partners trying the case have to be unreachable for everything else.
Week One: Logistics and Voir Dire
Confirm the jury fee deposit under CCP § 631 is in the file; if it is not, that is an emergency, not a week-one task. Trial subpoenas issued and served under CCP § 1987. Witness scheduling locked down with travel and lodging where applicable. The trial notebook — opening, direct outlines, cross outlines, jury instructions, verdict form, closing skeleton, MIL rulings tab — printed and tabbed.
Voir dire prep deserves its own block of time. Pull the jury questionnaire from the department, draft your supplemental questions, and run the venire profile your jury consultant put together. The reptile-versus-conservative-juror calculus is case-specific; bring a strike chart, not a generalized hunch. Confirm any outstanding CCP § 998 offer is in writing, served, and tracked — the cost-shifting argument after trial only works if the paper is clean.
The eight-week countdown is not a project plan; it is a forcing function. Every deadline that slips compresses the next, and by week three the only variable left to cut is witness preparation — which is the variable that decides the verdict. Firms that try cases regularly run this checklist on every file from the day the trial date issues, not the day it gets close.