Brandon Burke A supervising attorney reviews a file before a pretrial conference. She finds that the jury demand was never filed. The associate on the case is already working on a fix. Now the firm has to answer two questions. Does the client need to know? If so, who tells them, and when?
Here is the short answer. Your firm must tell a client about a mistake when a lawyer believes they may have made a material error in the representation of a current client. Model Rule 1.4 creates the duty, and ABA Formal Opinion 481, issued April 17, 2018, spells it out. An error is material if a disinterested lawyer would conclude that it is reasonably likely to harm or prejudice the client. It is also material if it would reasonably lead a client to consider ending the representation, even when there is no harm. The lawyer may consult first and, when it’s reasonable, may try to fix the error first. The client still has to hear about it “promptly under the circumstances.”
This is general information, not legal advice. State rules and ethics opinions vary, so check your own jurisdiction.
What counts as a material error
Opinion 481 sets a two-part test. An error is material if a disinterested lawyer would conclude that it is “(a) reasonably likely to harm or prejudice a client; or (b) of such a nature that it would reasonably cause a client to consider terminating the representation even in the absence of harm or prejudice.”
Three features of that test matter for a firm making the call.
It isn’t limited to malpractice. Opinion 481 says “it is unreasonable to conclude that a lawyer must inform a current client of an error only if that error may support a colorable legal malpractice claim.” An error can hurt a client’s case even if the client could never prove a malpractice claim.
Harm isn’t required. The second prong covers an error that “would cause a reasonable client to lose confidence in the lawyer’s ability to perform the representation competently, diligently, or loyally despite the absence of clear harm.” So “we caught it and nothing bad happened” doesn’t end the analysis.
The standard is objective. Opinion 481 says the standard for requiring disclosure “must be objective.” The question is what a disinterested lawyer would conclude. The view of the lawyer who made the error doesn’t settle it.
Where errors fall on the continuum
Opinion 481 describes errors as falling “along a continuum.” It draws examples from two state ethics opinions: North Carolina 2015 Formal Ethics Opinion 4 and Colorado Formal Opinion 113. The quotations below appear as they are quoted in Opinion 481.
| Where it falls | Example, as quoted | Source | Disclose? |
|---|---|---|---|
| Clearly material | “failing to file the complaint before the statute of limitations runs” | N.C. 2015 FEO 4, as cited in Opinion 481 | Yes |
| Middle ground, harmful | An error that “will result in financial loss to the client, substantial delay in achieving the client’s objectives for the representation, or material disadvantage to the client’s legal position” | N.C. 2015 FEO 4, as cited in Opinion 481 | “the error must be disclosed to the client” |
| Middle ground, specific examples | “the failure to request a jury in a pleading (or pay the jury fee), the failure to include an acceleration provision in a promissory note, and the failure to give timely notice under a contract or statute” | Colorado Op. 113, as cited in Opinion 481 | These “may give rise to an ethical duty to disclose.” Opinion 481 says middle-ground errors “must be analyzed individually.” |
| Tactical judgment call | A tactical decision among “equally viable alternatives” where the law on the issue is unsettled | Colorado Op. 113, as cited in Opinion 481 | Not required |
| Minor | “nonsubstantive typographical errors” or “missing a deadline that causes nothing more than delay” | N.C. 2015 FEO 4, as cited in Opinion 481 | The other end of the spectrum from material errors |
The hard calls sit in the middle rows. Opinion 481 acknowledges that neither the state opinions nor the ABA “purport to precisely define the scope of a lawyer’s disclosure obligations.” The opening example, a missing jury demand, sits squarely in the Colorado row. That is exactly the kind of error that calls for a careful, documented materiality call.
The rules behind the duty
Opinion 481 grounds the duty in several parts of Rule 1.4. Other ABA Model Rules shape what happens next.
| Rule | What it says | Why it matters after an error |
|---|---|---|
| Rule 1.4(a)(1) | Requires the lawyer to promptly inform the client of any decision or circumstance that may require the client’s informed consent | An error that creates a conflict puts a consent decision in the client’s hands |
| Rule 1.4(a)(2) | “reasonably consult with the client about the means by which the client’s objectives are to be accomplished” | The fix may change the plan for the case |
| Rule 1.4(a)(3) | “keep a client reasonably informed about the status of a matter” | A material error changes the status of the matter |
| Rule 1.4(a)(4) | Requires prompt compliance with reasonable requests for information | Opinion 481 says it “may be implicated if the client asks about the lawyer’s conduct or performance of the representation” |
| Rule 1.4(b) | “explain a matter to the extent reasonably necessary to permit the client to make informed decisions regarding the representation” | The client needs enough detail to decide what happens next |
| Comment 7 to Rule 1.4 | Cited in Opinion 481 for the point that a lawyer may not withhold information for the lawyer’s own interests or convenience | Embarrassment and liability worries don’t justify waiting |
| Rule 1.7(a)(2) | A conflict exists if “there is a significant risk that the representation of one or more clients will be materially limited by . . . a personal interest of the lawyer” | Opinion 481 says a serious error can create this conflict, and the client then needs to know |
| Rule 1.6(b)(4) | Permits revealing information “to secure legal advice about the lawyer’s compliance with these Rules” | Opinion 481 cites it in support of consulting before the client is told |
| Rule 1.8(h)(2) | Bars settling a malpractice claim or potential claim with an unrepresented client or former client unless the person is advised in writing to seek independent counsel and given a reasonable chance to do so | Matters if the firm offers to make the client whole |
| Rule 1.16(d) | Sets the lawyer’s duties when a representation ends | Opinion 481 says it does not create a duty to tell former clients about errors found later |
One line in Opinion 481 sums up the stakes for a firm tempted to wait.
“A lawyer may not withhold information from a client to serve the lawyer’s own interests or convenience.”
ABA Formal Opinion 481, citing comment 7 to Rule 1.4
When to tell the client
The duty is to notify the client “promptly under the circumstances.” Opinion 481 calls that “a case- and fact-specific inquiry.” It adds one firm marker: “Greater urgency is required where the client could be harmed by any delay in notification.” If the client has a decision to make before a deadline, they need the information before that deadline.
You may consult first. Under Opinion 481, the lawyer “may consult with his or her law firm’s general counsel, another lawyer, or the lawyer’s professional liability insurer before informing the client of the material error.” The opinion cites Rule 1.6(b)(4) for that step. It also says: “Such consultation should also be prompt.” A consultation is a short step before the call to the client, not an open-ended pause.
Your malpractice policy has its own terms. Opinion 481 allows calling the insurer before calling the client. It doesn’t address what any particular policy requires. Read your policy’s notice terms before you need them, and keep the carrier’s claims contact in a place the supervising attorneys can find. For background on coverage itself, see our guide to what legal malpractice insurance costs.
You may try to fix it first, when that’s reasonable. The opinion says: “When it is reasonable to do so, the lawyer may attempt to correct the error before informing the client.” Whether that’s reasonable “should take into account the time needed to correct the error and the lawyer’s obligation to keep the client reasonably informed about the status of the matter.” A fix that takes a day is different from one that takes months. The opinion treats correction as something that can happen before informing the client, not instead of informing the client.
Current client or former client
The duty in Opinion 481 runs to current clients. For an error discovered after the relationship has ended, “No similar duty of disclosure exists under the Model Rules.” That makes the end date of a representation important.
According to the opinion, a current client generally becomes a former client in one of these ways:
- At a time the lawyer specifies and the client acknowledges, such as in an engagement letter or a disengagement letter
- When the lawyer withdraws under Rule 1.16
- When the client ends the representation
- When overt acts inconsistent with continuing the relationship show that it has ended
Two details catch firms off guard. First, a client with several matters is “a current client if any of those matters is active or open.” Closing one file doesn’t make the client a former client. Second, for an episodic client who comes back whenever a need arises, the answer “will thus depend on the facts of the case.”
This is a practical reason to close matters in writing. Opinion 481 points to a disengagement letter sent at the end of a matter, as long as the lawyer “thereafter acts consistently with the letter.” A clear end date takes the guesswork out of which regime applies.
For former clients, the opinion still leaves room to speak up. It says “Good business and risk management reasons may exist for lawyers to inform former clients of their material errors when they can do so in time to avoid or mitigate any potential harm or prejudice to the former client.” It calls those “personal decisions for lawyers rather than obligations imposed under the Model Rules.” It also concludes that Rule 1.16(d) doesn’t fill that gap.
State positions differ at the edges, including for current clients. Opinion 481 cites Texas Opinion 593, which concluded that when the consequences of a lawyer’s malpractice can’t be significantly mitigated by continuing the representation, the relationship must end as to that matter. Check your own state’s rules and opinions before relying on the ABA view.
How to tell a client about a mistake, step by step
The opinion sets the duty. The firm still has to have the conversation. These steps put Opinion 481 into a sequence a supervising attorney can follow.
- Pin down the facts. Write down what happened, when it was found, and what it affects. Keep it factual and avoid conclusions about fault.
- Make the materiality call with fresh eyes. The test asks what a disinterested lawyer would conclude, so have someone outside the matter review it. Use the continuum table above as a starting frame.
- Consult promptly, if you’re going to. Call general counsel, another lawyer, or the insurer as Opinion 481 allows. The opinion says the consultation “should also be prompt,” so don’t let it become a reason to wait.
- Decide whether a quick fix is reasonable. Weigh the time needed against the client’s right to stay informed. If the client could be harmed by any delay, the opinion calls for greater urgency, so lean toward telling them first.
- Choose who makes the call. Usually that’s the responsible lawyer, with a supervising attorney present when the error is serious. Make the choice deliberately so it doesn’t land on whoever happens to answer the phone.
- Have a live conversation. Use a phone call, a video call, or a meeting. Plan it so the client hears from a lawyer before any routine update about the corrective step goes out.
- Explain enough for the client to decide. Rule 1.4(b) asks for what the client needs “to make informed decisions regarding the representation.” Cover what happened, what it means, what has been done, and what the options are.
- Address the conflict question. If the error creates a Rule 1.7(a)(2) conflict, the client decides “whether to discharge the lawyer or to consent to the conflict of interest,” as Opinion 481 puts it.
- Follow up in writing. Send a short summary of the conversation, the next steps, and who to contact.
Sample talking points
Adapt these with whoever you consulted. Keep the language plain and the facts specific.
“[Client name], thanks for making time. I need to tell you about a problem in your case. On [date], we [what happened]. I found it on [date].”
“Here is what it means for your case right now: [effect on the case]. Here is what we’ve already done about it: [corrective step and status].”
“You have some decisions to make, and I want you to have what you need to make them. Your options are [option one] and [option two]. You can also talk with another lawyer about this, and you can decide whether you want us to keep handling your case.”
“I’ll send you a written summary by [date]. If questions come up before then, call me directly at [phone number].”
The tone matters as much as the content. Our guides to client communication best practices and managing client expectations cover the everyday habits that make a hard call like this one easier to have.
After the conversation
The call is the start of the process, not the end. A few things follow from it.
Get the client’s decision on any conflict. If the client chooses to keep the firm despite a Rule 1.7 conflict, the rule requires informed consent, confirmed in writing. The lawyer must also reasonably believe the firm can still provide competent and diligent representation. If the client ends the representation, follow Rule 1.16, including the steps in Rule 1.16(d) to protect the client’s interests.
Don’t settle around the rule. If the firm wants to compensate the client, Rule 1.8(h)(2) applies to an unrepresented client or former client. The client must be advised in writing that independent counsel is a good idea, and given a reasonable opportunity to get it.
Keep the record straight. Put the written summary and every later update in the case file. The client’s view of their case should match what actually happened after the fix.
Look at how it happened. If the error was a missed or unrecorded deadline, review how dates get into your calendar and who checks them. Our overview of legal calendar software is one place to start.
Where CasePulse fits
We built CasePulse as a client portal layer on top of the case management system your firm already uses. We work with Neos, Needles, LawBase, Litify, and Salesforce.
After the conversation, your team can send the written follow-up through our secure messaging, which keeps the exchange within your case management system. Our automated updates go out when key actions occur in the case, by text, email, or both, based on the client’s preferences. Our Smart Calendar syncs with your CMS, so the dates your client sees come from your case record. What we can’t do is decide whether an error is material or have the conversation for you. That call belongs to a lawyer, and the disclosure itself is best handled as a live conversation, not an automated update.
See everything the portal does on our features page, or browse our integrations to see how we connect to your CMS.