The settlement check clears, the trust disbursement goes out, and the file moves to storage. For most plaintiff firms that is where attention to the matter stops. It should be the moment one more document begins — a written closing letter to the client, signed by the handling attorney, that states the representation is over and spells out what the client is responsible for now.
A closing letter reads like a formality. It is not. In California it is the single cleanest way to fix the date your professional obligations end, to put surviving deadlines in the client's hands, and to create a record you will be glad to have if a former client's memory of events drifts two years later. Firms that treat it as a mail-merge afterthought give away the protection it was built to provide.
The letter is a malpractice defense, not a courtesy
Legal malpractice claims in California run on Code of Civil Procedure section 340.6: one year from when the client discovers or should have discovered the wrongful act, and in no event more than four years. The clause that matters at file closing is the tolling provision. The limitations period is tolled for as long as the attorney continues to represent the client regarding the specific subject matter in which the alleged wrong occurred.
That is the continuous representation doctrine, and it is a trap for the firm that never formally disengages. If there is no clear end point to the representation, a plaintiff's lawyer can argue the clock never started — that lingering phone calls, a stray question about a lien, or an unresolved property-damage claim kept the relationship alive. A dated closing letter that says, in plain terms, that the firm has completed its work and no longer represents the client on this matter gives you a defensible date. Without it, you are litigating when representation ended before you ever reach whether you committed malpractice at all.
Write the letter so it does that job. State that the matter is concluded, state the date, and state that the firm will take no further action on the client's behalf unless the client signs a new agreement. Vague language — "we have wrapped things up" — invites the same argument the letter is supposed to foreclose.
State the statute on every claim you did not resolve
A personal injury matter rarely resolves every claim a client has. The bodily-injury claim settles; the property-damage subrogation, the loss-of-consortium claim, a separate claim against an underinsured motorist, or a potential products claim against a component manufacturer may still be open. The closing letter is where you tell the client, in writing, which claims your representation did and did not cover, and that any surviving claim carries its own deadline.
Be specific about the governing periods. General negligence personal injury runs two years under Code of Civil Procedure section 335.1. Medical malpractice runs on section 340.5 — three years from injury or one year from discovery, whichever comes first, with separate rules for minors. Claims against public entities demand a government claim within six months under Government Code section 911.2, with suit deadlines keyed to the rejection notice under section 945.6. You do not have to give the client a treatise. You do have to name the fact that a deadline exists and advise the client to consult counsel promptly if they intend to pursue anything the firm did not handle.
This is also the place to close the loop on coverage questions that surfaced during the case. If your intake coverage verification identified a policy the client chose not to pursue — a med-pay provision, a UM carrier, an umbrella layer — note that the decision was the client's and that no claim was made on it. Silence on a known-available policy is exactly the kind of gap a successor lawyer builds a claim around.
Account for the money and the liens
The closing letter should restate the settlement math the client already approved on the disbursement sheet: gross recovery, attorney fee, costs advanced, lien payments, and net to the client. Reattaching the signed disbursement statement costs nothing and answers the most common former-client complaint — that they did not understand where the money went. If your fee agreement is drafted the way it should be, the numbers in the letter will track the agreement exactly; our discussion of contingency fee drafting and dispute prevention covers the terms that make that reconciliation clean.
Liens deserve their own line. State that each lien was satisfied, reduced, or disputed and on what terms, and identify any obligation that survives the disbursement. An ERISA plan that reserved rights, a Medicare conditional-payment matter still in appeal, or a provider balance the client agreed to carry personally all belong in the letter. A former client who is later dunned by a lienholder will come to you first; a letter that shows what was resolved and what the client knowingly retained is your answer.
What you keep, what you return, and for how long
Under Rule of Professional Conduct 1.16(e)(1), the client's file belongs to the client, and on request you must release it promptly — including papers and property the client provided, pleadings, discovery, correspondence, and work product for which the client has paid. The closing letter is the natural moment to offer the file and to tell the client how to request it. Offer it in writing and you avoid the later claim that you withheld it.
Retention is a separate obligation with its own clock. Trust account records must be kept for five years after final distribution under Rule 1.15(d). California has no single mandatory retention period for the rest of a civil file, but State Bar guidance has long advised holding former-client files for a reasonable period and destroying them only after notice to the client. The practical rule for a PI firm: do not destroy a file while any related limitations or tolling period could still run. That caution bears directly on the next point.
Minors, incapacity, and the clock that does not run
Some files cannot be closed in the ordinary sense because the limitations period is tolled. Code of Civil Procedure section 352 tolls the statute during a plaintiff's minority or lack of legal capacity, and the medical-malpractice statute carries its own extended period for injured minors. If a sibling, a passenger, or the client's child has a claim arising from the same incident that was not resolved, the closing letter should flag that the deadline on that person's claim may be years away and that it is the family's responsibility to act on it.
The retention consequence follows: a file involving a minor's unresolved claim is not a candidate for routine destruction, because the underlying claim — and any criticism of how the firm handled it — can surface long after an adult matter would be time-barred. Mark those files so a retention schedule does not purge them early.
Future-facing settlement terms belong here too. If the client took a structured settlement, agreed to a Medicare set-aside, or signed a release with ongoing confidentiality or indemnity obligations, the letter should remind them that those commitments outlive the check. For clients whose recovery carries Medicare exposure, our review of Medicare set-aside administration explains why the client's post-settlement duties are worth restating in plain language.
The discipline part
None of this works as an occasional gesture. The protection comes from doing it the same way on every file — a template that forces the handling attorney to name the end date, list unresolved claims and their deadlines, reconcile the money and the liens, offer the file, and flag any tolled period before the matter goes to storage. A closing letter sent on the strong cases and skipped on the small ones is the pattern a plaintiff's lawyer will find and use. Send one every time, and the day a former client's lawyer calls, the answer is already in the file.