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Insights & Litigation Resources

Practice notes for attorneys retaining expert witnesses on the West Coast — admissibility standards, disclosure procedure, cost, and the questions that decide whether an opinion survives a motion to exclude.

Practice notes for retaining counsel

Written for attorneys, not for search engines. Each piece addresses a question that comes up repeatedly in screening calls — admissibility, disclosure, cost, and the drafting decisions that determine whether an opinion survives a motion to exclude.

Sargon, Frye and Brown/O'Key: how three neighbouring states judge the same expert

California, Washington and Oregon apply three different admissibility tests to the same expert. What each one asks, and how it changes the report.

MICRA in 2026: what the AB 35 caps mean when you commission a medical expert

California's noneconomic damages tiers rise every January under AB 35. What the schedule means when deciding how much expert workup a case supports.

How to find an expert witness for a California, Washington or Oregon case

A practical sequence for finding and vetting an expert witness for a California, Washington or Oregon matter — and the mistakes that surface at deposition.

What an expert witness costs on the West Coast

How expert witness cost is actually structured — review, report, deposition and trial billed separately — and where the spend concentrates in a case.

Expert disclosure compared: California, Washington and Oregon

Three states, three disclosure mechanisms. How California's simultaneous exchange, Washington's case schedule, and Oregon's practice differ for experts.

What makes an expert report admissible

Exclusion motions rarely argue the expert is unqualified. They argue the reasoning does not survive the record. What a defensible report shows.

Consulting expert vs. testifying expert: when the distinction protects you

The two roles are used differently, and moving someone between them has consequences. How the distinction works in practice for West Coast matters.

Expert deposition fees: who pays, and what is reasonable

Who bears an expert's deposition fee, what the reasonable-fee question turns on, and how the three West Coast states address it differently.

When to bring an expert into the case

The cost of retaining an expert early is a review fee. The cost of retaining one late is a case built on an assumption the records never supported.

Why federal Daubert practice diverges from West Coast state courts

All three West Coast states sit in one federal circuit applying Daubert, and none of them applies it in state court. What that split does to a case.

Jurisdiction practice notes

The most detailed material on this site. Each page covers the governing admissibility standard, disclosure procedure, deposition practice, and the courts served.

Answers and process

Case studies

Expertise by discipline

Publishing cadence. New practice notes are added regularly, covering admissibility developments, expert cost benchmarks, and the procedural questions that come up most often in West Coast litigation. Nothing published here is legal advice.

Complimentary consultation

Have a question these don't answer?

Preliminary screening is complimentary. Send the posture of your matter — jurisdiction, claims, and the schedule you are working under — and Dr. Alvaro Alban, MD, MBA will identify the expert discipline the issue points to, check availability and conflicts, and tell you candidly whether the materials look suitable for expert review before you retain anyone.

Service area
California, Washington, and Oregon — state and federal courts, in person and by remote deposition.
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By submitting this form you acknowledge the following: I understand that West Coast Expert Witness and Themis Expert Witness, LLC are not law firms, do not provide legal advice or representation, and are not responsible for determining legal claims, procedural requirements, or deadlines.

Submission of this form does not create an attorney-client relationship, expert-retention relationship, fiduciary relationship, or confidential relationship. West Coast Expert Witness and Themis Expert Witness, LLC do not provide legal advice and are not responsible for identifying, calculating, or preserving litigation deadlines.

Complimentary preliminary screening is limited to identifying a potentially appropriate expert discipline, checking availability and conflicts, and determining whether the submitted materials may be suitable for expert review. It does not include legal analysis, evaluation of claims or defenses, calculation of deadlines, or an opinion concerning whether a lawsuit is viable.

If you are not represented by an attorney: Individuals without counsel should consult a licensed attorney regarding the viability of their claims and all applicable deadlines before retaining an expert.

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