Ask an instructing solicitor what they want from an expert and they will say a clear, defensible opinion delivered on time. That is true, and it is also the easy part. The experts a firm instructs again and again tend to get a handful of quieter things right.
What makes an expert opinion easy to follow?
A fee earner reads dozens of reports. The ones that help are the ones where the reasoning is visible. State the records you relied on, show how you moved from finding to conclusion, and flag where the evidence is thin rather than papering over it. A report that hides its uncertainty is not stronger. It is just harder to defend when the other side probes it.
Why does sourcing matter in an expert report?
When you refer to a fact, make it traceable. A date, a document, a page. If an opinion rests on a single GP entry from 2014, the solicitor wants to find that entry in seconds, not reconstruct your route to it. Sourcing of that kind does two jobs. It speeds up the firm's own review, and it holds up when an opposing expert disputes the chronology.
The most useful report is the one a fee earner can hand to counsel without first having to verify it themselves.
Why do firms want visible progress on a report?
Silence between instruction and delivery is where firms get nervous. They are managing a limitation date and a client who rings every fortnight. Being able to see that a report is assigned, in draft or served, without sending an email to ask, removes a real source of friction. It also means the chasing emails stop, which helps everyone.
How should an expert record time?
Fees are part of the relationship whether anyone enjoys discussing them or not. Itemised time, captured while you work rather than reconstructed at the end of the month, gives the firm something it can pass to the costs draftsman without a back-and-forth. Predictable, evidenced billing is quietly one of the strongest reasons a firm keeps an expert on its list.
Should an expert stay within their specialty?
Firms value an expert who knows the edge of their own expertise. A report that strays into another specialty to be helpful tends to create a problem at trial rather than solve one. The experts who get instructed again are the ones who answer the question asked, say plainly when a point falls outside their field, and suggest where a further opinion might be needed. That honesty reads as confidence, and it saves the firm from building a case on an opinion that will not hold up under cross-examination.
How important is an expert's availability?
Much of the work in litigation is governed by dates that cannot move. A firm planning around a directions hearing needs to know that a supplementary report or an answer to Part 35 questions will arrive in time. An expert does not have to be available at all hours. They have to be predictable, to flag early when a deadline is at risk, and to be reachable through the case rather than through a personal inbox that may sit unread for a week. Predictability, here, is a form of reliability that firms remember.
Why is a reliable expert better value for a firm?
From the firm's side, a known expert who delivers cleanly is cheaper than a cheaper expert who does not. Every chasing email, every reformatted report, every fee note that has to be queried is unbilled time for the fee earner. An expert who removes that friction is, in the firm's real accounting, the better value, even before the quality of the opinion is considered.
What turns one instruction into a lasting relationship?
None of this competes with clinical quality. It sits around it. A sound opinion, sourced so it can be checked, delivered with visible progress and clean billing, is what turns a single instruction into a standing relationship.
