The Expert Witness Sideline: Marketing an Expert Report Writing Service to Other Law Firms

13 October 2026·5 min read

Quick answer: If a partner at your firm writes expert reports for other law firms on the side, that's a genuine B2B referral business — and it needs its own marketing lane, separate from your main client-facing website. The buyer is an instructing solicitor, not a member of the public, so the trust signals, the channel and the whole sales approach look completely different. Market to the instructor, not the search bar. 🚀

Please note: general information, not legal advice — check current official guidance (including on expert witness obligations and conflicts) before relying on it.

A lot of firms have a partner who's quietly become the go-to expert report writer for a specific niche — building disputes, costs assessments, family law procedure, professional negligence — and almost none of them market it properly. It usually lives as an afterthought paragraph on the firm's general about page, written for the same audience as everything else on the site: members of the public looking for a lawyer. But the person who actually hires an expert witness report writer is another solicitor, usually under time pressure, usually looking for a specific narrow expertise, and usually finding candidates through channels the public never sees 💖. Treat this as its own small B2B offering and it can become a genuinely valuable, low-overhead line of work — treat it as an afterthought and it stays exactly that.

What most firms get wrong

The biggest mistake is audience confusion — writing expert witness marketing copy as though a member of the public will stumble across it and need convincing the way a prospective client does. Instructing solicitors don't need persuading that expert evidence matters; they need to quickly confirm relevant expertise, credibility, availability and process. The second mistake is making the credentials hard to find — burying a CV-style summary of actual relevant matters and qualifications under generic bio copy written for client-facing purposes. The third is having no clear, visible process for how another firm actually engages the expert — if it's not obvious how to instruct, busy solicitors will simply move on to whoever makes it easy.

Checklist: the expert witness landing page

Credentials summary: a CV-style block — relevant qualifications, years of specific (not general) experience, notable matter types handled
Areas of expertise: narrow and specific, not "general litigation" — the narrower the better for being found and trusted
Independence statement: a plain note that reports are prepared independently, in line with the expert's duty to the court rather than to the instructing party
Sample scope of instructions: a short description of what a typical instruction looks like and what's needed to get started
Turnaround and availability: realistic timeframes, updated if they change — nothing turns off a time-pressed solicitor faster than vague promises
How to instruct: a direct contact method aimed at solicitors specifically, not the general enquiry form

Commercial litigation firm: A senior construction law partner writes expert reports on building contract disputes for firms without that specific expertise in-house. Their landing page leads with a narrow list of matter types handled rather than a broad "construction law" label, because the solicitors searching for this expertise already know exactly what they need.

Family law firm: A senior partner with decades of experience offers reports on family law costs assessments to smaller firms that don't have that depth in-house. Because this is a relatively quiet niche, the firm relies more on direct relationships and referrals from barristers than on search traffic — but still keeps a simple page live so a recommendation can be followed up with a credible, professional-looking profile.

Suburban general practice: A semi-retired principal with decades in conveyancing offers expert reports on professional negligence matters involving other conveyancers. The firm builds a short, dedicated page with a clear CV summary and turnaround times, giving referring solicitors something concrete to point to rather than relying purely on word of mouth.

How to actually reach instructing solicitors

This almost never works as a consumer-facing ad campaign — instructing solicitors aren't searching the way the general public searches, and paid ads aimed at the public are largely wasted spend here. A personal LinkedIn profile for the expert, kept active with genuinely useful commentary in their niche, tends to outperform a generic firm company page for this purpose, because solicitors often look up a specific person before they look up a firm. Referral relationships matter enormously too — barristers in the relevant practice area are often the ones recommending an expert witness to instructing solicitors, so being known and trusted within that smaller professional circle does more long-term work than any digital campaign.

💡 Market to the instructor, not the public. Every page, post and conversation about this service should be written as though the only person reading it is another solicitor deciding whether to pick up the phone — because that's exactly who it is.

Mistakes to avoid

Burying the expert witness service inside generic firm-wide marketing aimed at the public
Using broad practice area labels instead of narrow, specific expertise descriptions
Leaving out a clear, independent process for how to actually instruct the expert
Running public-facing paid ads for a B2B professional referral service
Neglecting the personal LinkedIn presence of the expert in favour of only a firm page

Frequently asked questions

Can marketing expert witness services create a conflict of interest for the main practice?

It can raise genuine considerations worth thinking through carefully — for example around independence and existing client relationships — and this is a matter the firm should get its own specific advice on rather than treat as a marketing decision alone.

Is it worth paying for a legal directory listing specifically for expert witness work?

It can help with discoverability, particularly for niches where instructing solicitors do actively search, but it's rarely the primary driver compared to direct professional relationships and reputation within the relevant practice area.

Should the expert witness page sit on the main firm website or somewhere separate?

Either can work — a dedicated page on the existing site is simpler to maintain, but it needs to be written and structured completely differently from the client-facing pages around it, with its own clear navigation path so a visiting solicitor doesn't have to dig.

How do we measure whether this marketing is actually working?

Track enquiries and instructions directly rather than vanity traffic, since the channel here is relationship-driven rather than high-volume — a quiet, low-traffic page that reliably produces a handful of genuine instructions a year can still be a real success for what is, after all, a sideline rather than the main business.

Keep reading 🤍

Written by

Kate, founder of Chronically Online

I help Gold Coast and Brisbane businesses grow with branding, websites and marketing that actually works.

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