Concept
The Professional Standard of Care
Civil liability to client, including malpractice
The Professional Standard of Care
Breach asks whether a lawyer's conduct fell short, and the answer depends on where the law draws the line. Negligence is conduct that falls below the standard the law establishes for protecting others against unreasonable risk of harm,1 and an actor is liable only when that conduct is negligent with respect to the person claiming harm.2 A court cannot find that a lawyer fell below a standard until it knows where the standard sits.
The preceding section settled to whom a lawyer owes a duty; this one settles what the duty demands. A negligence action lies for a client's purely economic loss because the lawyer undertook the work and stands in a special relationship with the client, and legal malpractice is the standard example.3 What the duty demands is measured by a professional yardstick: not what an ordinary reasonable person would do, but what a reasonable professional would do.4
The reason is what the client buys. A client hires a lawyer for knowledge the client lacks: how to compute a limitations period, or when a clause will be enforced as written. If the benchmark were a careful layperson, a lawyer who missed an issue that any trained practitioner would have caught could answer that a careful layperson would have missed it too. The professional yardstick closes that gap. It also protects the lawyer, because a standard drawn from competent practice demands neither perfection nor knowledge of how a matter would later turn out.
The subsections that follow build the standard in layers. The first sets the baseline, the reasonable lawyer. The second shows how a plaintiff proves it, since jurors rarely know what competent legal practice looks like. The next two adjust the baseline at its edges: upward for specialists and lawyers of superior skill, and not at all for inexperience or mental limits. The last two ask what kind of conduct can fall below the standard, an act or an omission, and which honest errors of judgment fall outside it. Proof of breach does not win the case, since causation and damages must still follow, but every later element depends on fixing this one first.
The Reasonable Lawyer
The benchmark is the reasonable and prudent lawyer. A lawyer must act with the competence and diligence normally exercised by lawyers in similar circumstances,5 and the standard takes objective form: the knowledge, training, and skill of an ordinary member of the profession.6 The plaintiff therefore proves breach by showing that the lawyer failed to use the skill, prudence, and diligence that lawyers of ordinary skill and capacity exercise on the kind of task the lawyer undertook. An objective measure suits the client's position. A client cannot inspect a lawyer's talent before hiring, so a standard tied to what reasonable lawyers do gives every client the same floor of competence without asking the client to rate the individual lawyer.
That floor sits at the reasonable lawyer, not the average one. A rule that required only what the average lawyer delivers would put half the profession below the standard by definition, so an entirely competent lawyer could be liable merely for sitting in the lower half of the range. Courts have therefore rejected “average” in professional-negligence jury instructions, observing that practitioners with somewhat less than average skill may still have the skill and care to serve clients competently.7 Nor does the standard demand excellence. A professional is ordinarily liable only for negligence, because the service carries no guaranteed result.8 For an exam answer, the working phrase is the reasonable and prudent lawyer, with neither the perfect lawyer nor the average lawyer standing in for it.
The objective test also governs what the lawyer perceived and knew. Under § 289(a), an actor must recognize that conduct risks invading another's interest whenever a reasonable person would recognize it while exercising the attention, perception of the circumstances, memory, knowledge of other pertinent matters, intelligence, and judgment that a reasonable person would have.9 In malpractice, the reasonable person is the reasonable lawyer.10 The question becomes whether a lawyer exercising ordinary legal attention, knowledge, and judgment would have seen that an unresearched point could cost the client a claim. A lawyer who never researches, or who lacks knowledge that ordinary lawyers have, fails to recognize a risk the test charges to the lawyer, and the failure is the breach itself rather than an excuse for it. The alternative would reward ignorance: if the lawyer's actual knowledge set the standard, the lawyer who learned least would owe least. Section 289(b) supplies the other half of the test, which holds a lawyer who actually knows more to that higher level, and the specialist subsection below takes it up.11
MRPC 1.1 names similar ingredients of competent work, including legal knowledge, skill, thoroughness, and preparation. Rules of professional conduct may bear on the standard of care, but courts generally do not give them per se effect, comparable to safety statutes in ordinary negligence cases.12
Smith v. Lewis shows the test at work. A lawyer representing a wife in a divorce failed to claim her interest in her husband's retirement benefits under California community property law, because he mistakenly believed such benefits could not be claimed. The court upheld a $100,000 judgment against him.13 He had not researched the point, and research would have shown that the law was relatively clear that the benefits were community property. His sincere belief gave him no protection. The standard asks what a reasonable lawyer's research would have turned up.
The result changes when research would have found no settled answer. A lawyer who fails to predict how a court will resolve an unsettled principle has not committed malpractice, as Smith v. McLaughlin illustrates, and neither has a lawyer who fails to urge a substantial change in the law that would require overruling controlling precedent, as in Minkina v. Frankl.14 What separates those decisions from Smith v. Lewis is whether a reasonable lawyer at the time would have found a settled answer or would have had to predict one; the size of the client's loss does not enter into it. The test is one of foresight: what a reasonable lawyer would have done at the time, with hindsight excluded. A standard that charged lawyers with knowing how courts would later rule would turn every lost case in a changing field into malpractice. Even then, unsettled law excuses only the failure to predict. It does not excuse a lawyer who skips the research a prudent lawyer would have done, a limit developed under Errors of Judgment below.15
Good faith is no defense. The client's loss is the same whether the lawyer meant well or not, and a subjective test would reward sincerity at the client's expense. Medical malpractice follows the same logic: that a physician meant well or practiced to the best of his ability is irrelevant, because conduct is measured by objective criteria.16
The standard also tracks what ordinary lawyers are expected to know, and that expectation can change. In Lucas v. Hamm, the California Supreme Court held a lawyer not liable for a will whose trust provisions violated the rule against perpetuities. That aspect of the decision has been distinguished away, and a competent lawyer is now expected to comply with the Rule.17 An exam stem in which an estate-planning lawyer drafts a will that violates the Rule should therefore not be answered with Lucas as the lawyer's defense.
Proving the Standard
Because the standard describes what reasonable lawyers do, the plaintiff must show the jury what that is, and the usual means is an expert witness. Jurors can judge from experience whether a driver kept a proper lookout. They normally have no specialized knowledge about the responsibilities of lawyers, so expert testimony is generally necessary to guide them in applying the standard to the facts of the case.19 The assistance matters so much that expert testimony is normally an essential step toward an award of damages.20 As ethics expert William Hodes puts it, without such witnesses jury verdicts would often be “the result of pure whim and prejudice, or random and arbitrary decision-making.”21
Courts are reluctant to dispense with the expert. The Connecticut Supreme Court held that its own observation, during an appeal in the underlying case, that the client's lawyer had violated basic rules of appellate procedure did not excuse the client from presenting expert evidence on the standard of care and its breach in the later malpractice action.22 The New Hampshire court in Wong v. Ekberg likewise required expert testimony to establish the standard of care for pretrial preparation of a criminal defense.23
The expert's job is narrower than it may first appear. Juries usually decide whether a lawyer breached the duty,24 and the expert supplies the link between the standard and the lawyer's conduct. That link cannot be the expert's personal preference. It is insufficient for an expert to testify that the expert would have handled the matter differently, because the issue is whether any lawyer exercising reasonable care could have done what the defendant did.25 The reason is that the standard is a floor drawn from what reasonable lawyers do, and reasonable lawyers often take different routes through the same matter. An expert who describes a preference may be describing something better than the law requires, and a jury that treated preference as the standard would hold a competent lawyer liable for failing to be brilliant.
The expert requirement has an exception for breaches so obvious that laypersons recognize them. No expert is needed to establish that the standard of care would prohibit the theft of a client's settlement proceeds or fraudulent billing.26 Courts have likewise excused the expert where a client suffered a default judgment because his lawyer did absolutely nothing to protect him, and where the lawyer failed to file a timely notice of appeal despite the client's instruction to appeal.27
Both clients lose their claims, so the result cannot separate the two cases. What separates them is whether a professional judgment stands between the lapse and the loss. Courts distinguish mechanical steps, which implicate no professional judgment and make liability easier to find, from discretionary ones, and failing to file suit before the limitations period runs is the prime example of the mechanical type.28 When a deadline is missed because of the lawyer's legal judgment, expert testimony is required to show that the judgment fell below professional standards.29
The expert's frame of reference is geographic as well as professional. The standard of care is generally determined on a statewide basis, so a lawyer in Buffalo could testify that a lawyer in Schenectady had been negligent.30 The state is the usual frame because substantive law, procedure, and the ethics rules vary from state to state. The Vermont Supreme Court in Russo v. Griffin held that an out-of-town expert supported a negligence claim because the expert knew the standard of care in the state. The Delaware Supreme Court in Phillips v. Wilks, Lukoff & Bracegirdle, LLC found a New Jersey lawyer unqualified on a claim governed by Delaware law, because more than a reading of Delaware case law was required.31 Where the work involves federal tax, securities, bankruptcy, or patent law, a national frame makes sense, because lawyers throughout the country practice under the same law.32
Courts have rarely adopted a purely local standard, for two reasons. A small local bar may have few lawyers, and they may be unwilling to testify against one another, so a client with a good case could not find a qualified witness.33 A local standard would also shield lawyers in communities that lag behind the profession and would weaken the incentive to keep pace. Local practice remains evidence of whether conduct was proper, but it does not change the standard.
Some jurisdictions add an early screen. To dispose of frivolous claims promptly, a number of them require the plaintiff to file an expert's affidavit of merit within a specified time after the suit begins, or the court dismisses it.34 A claim that cannot attract an expert will usually fail at trial anyway, so the affidavit moves that failure to the start of the case, before the defendant bears the cost of discovery.
Specialists and Superior Skill
Section 289(b) adds a second half to the objective test. Subsection (a) measures the actor against a reasonable person's attention, perception, memory, knowledge, intelligence, and judgment.36 Subsection (b) requires the actor also to recognize any risk that would be apparent to someone with such superior attention, perception, memory, knowledge, intelligence, and judgment as the actor himself has.37 The two halves work as a floor and a ratchet. An actor who knows less than a reasonable person gets no discount, and an actor who knows more is charged with whatever the extra knowledge reveals. The reason follows from who can see a danger. A risk visible only to someone with special training can be averted only by that person, so if the law measured everyone against one baseline, the lawyer with unusual training could stop at ordinary care and let a loss occur that only that training would have prevented.
For lawyers, the best-known application of the ratchet is the specialist. A lawyer who holds herself out as a specialist, for example by claiming to be an expert in international taxation issues, may be held to the heightened standard of care of lawyers who are also experts in that field.38 When such a lawyer misses a treaty issue that practitioners in the field routinely spot, the comparison is with those practitioners, and what a reasonable general practitioner would have found no longer settles the question. The reason lies in the client's reliance. A client who chooses a lawyer for claimed expertise has passed over other lawyers, usually at a premium, and the claim is what earned the engagement. A standard that ignored the claim would give the client nothing for that premium and would let the lawyer collect the benefit of advertised skill while owing only ordinary care.
Proof of the higher standard follows the usual expert requirement, with one adjustment. Where the defendant is a specialist, the plaintiff needs a witness who knows the specialist's standards, since a personal injury lawyer could hardly help a jury judge whether a tax lawyer's estate plan met the profession's standards.39 Because the specialist's standard is the more exacting one, proof that a specialist fell below the lesser standard also shows breach of the greater. A plaintiff suing a specialist therefore has two routes to breach: showing that the lawyer failed even the ordinary measure, or showing that the lawyer failed the field's own.
Holding out is not the only route to the higher measure, because § 289(b) looks to what the actor actually has rather than to what the actor advertises.40 A lawyer's real superior knowledge can therefore raise the measure as well.
Holding out and actual knowledge thus lead to the same higher measure, and exam stems usually signal the first route by having the lawyer advertise an area of expertise. Complexity alone does not raise the measure. A lawyer who is not a specialist and claims no expertise is judged by the standard for non-specialists, which on the usual view is less exacting than the specialist's.
Set beside the international-tax example, this scene shows which fact moved the standard. The treaty lawyer invited reliance on specialist knowledge. The general practitioner disclosed the limit of her experience and took the steps a careful generalist takes, so the client had no reason to expect a specialist's judgment.
Inexperience does not lower the measure either. A federal appeals court reviewing Rule 11 sanctions against a solo practitioner in a town of 14,000, who had filed a copyright suit without expertise in copyright law or federal litigation, declined to fault him for lacking mastery of an esoteric field but applied an objective standard that makes no allowance for the circumstances of particular practitioners.41 Rule 11 itself requires every pre-filing inquiry to be reasonable under the circumstances, a requirement that presupposes investigation before the lawyer files.42 The court described the standard in negligence terms and observed that legal malpractice has no locality rule, that a specialist may be held to a higher standard than a generalist, and that a generalist acts at his peril in bringing suit in a field or forum he does not know. Such a lawyer must either associate a lawyer who has the expertise or study the relevant law at every step, recognizing that inexperience makes error likely.
The peril follows from who knows what. The lawyer knows that the field is unfamiliar, and the client usually cannot tell. The lawyer can decline the matter, bring in someone who knows the field, or learn the law with care, and each of those responses protects the client. Only the lawyer who goes ahead with none of them has imposed an avoidable risk, so the law leaves the cost of the resulting error with that lawyer. A lower standard for the inexperienced would invert the incentive, since the less a lawyer knew about a field, the less care the lawyer would owe in it. MRPC 1.1 draws a similar line: it permits a lawyer to enter an unfamiliar area and expects the lawyer to supply the missing competence through study or by associating a lawyer who has it.
Personal Limitations
The objective standard raises a question: how much of the individual lawyer's own condition does the yardstick take into account? Two Restatement sections answer differently. Under § 283B, unless the actor is a child, insanity or other mental deficiency does not relieve the actor from liability for conduct that fails to conform to the standard of a reasonable person under like circumstances.44 Under § 283C, an actor who is ill or otherwise physically disabled is held to the standard of a reasonable person under like disability.45 The first rule leaves the standard where it was, and the second moves it. The reason for the difference tells you how to sort an exam fact pattern that mentions some limitation in the lawyer.
The child exception in § 283B has no application to a lawyer, who is an adult licensed to practice, so for exam purposes the mental-deficiency rule denies any excuse. The reason lies in what the standard is for. A client choosing a lawyer cannot test the lawyer's mental capacity, so the reasonable-lawyer standard gives every client the same floor of care. If a lawyer's own mental limits lowered that floor, the client who happened to hire the most limited lawyer would receive the least care and bear the whole cost of the shortfall. The lawyer is the one person who knows the limits of the lawyer's own capacity, and the lawyer can respond by declining the matter, bringing in another lawyer, or studying the area. A rule that excused the limit would reward the lawyer who went ahead anyway.
Inexperience is treated in the same spirit, even though it is a gap in training and not a mental deficiency. Courts applying professional standards in the medical setting held a defendant who had just graduated from medical school and was doing an internship to the same standard of care as a physician in Centman v. Cobb, and the majority rule in Arpin v. United States holds residents to the standard of physicians who have completed their residency in the same field.46 The measure is the knowledge, training, and skill of an ordinary member of the profession, and a novice's place at the bottom of the experience ladder does not change it. The same reasoning applies to a newly licensed lawyer, who is judged as any reasonable lawyer would be.
Holding the novice to the full standard settles only the breach element. A new associate with no experience and inadequate supervision who makes serious errors in trying a case still leaves the plaintiff to prove that those errors adversely affected the result of the trial.47 Inexperience therefore does not lower the standard, and it does not supply proof of harm either, since causation is a separate element taken up later in this chapter.
Physical disability moves the standard because the law does not blame a person for what the person cannot control. When illness or physical disability limits what a lawyer can do, the question becomes what a reasonable lawyer in that condition would have done, which is the comparison § 283C makes.48 The mental-deficiency rule differs because the faculties it concerns, knowledge and judgment, are the very things the reasonable-lawyer standard measures. Letting them lower it would make the standard vary with the lawyer's own capacity and defeat its purpose as a uniform floor. A physical limit on what a person can do is a circumstance the standard can take into account while it keeps measuring the lawyer's knowledge and judgment as before.
The adjustment is narrower than it first appears, because the reasonable lawyer under like disability also makes sensible decisions about the disability. A lawyer who sees an illness coming, or who runs a practice with no one to cover it, is judged on those decisions as well as on what happened during the incapacity.
The pair shows where the adjustment stops. Section 283C changes what is expected of the lawyer while incapacitated, and the decisions made before that point remain subject to the ordinary standard of care. A sole practitioner has no partner to pick up the work, so a reasonable sole practitioner foresees that illness could leave clients unattended and arranges for another lawyer to be able to step in. A lawyer who ignores that foreseeable gap answers for the omission, and the illness itself is not what the law measures. The next subsection takes up omissions of this kind.
Acts and Omissions
Section 284 divides negligent conduct into two kinds: an act and a failure to act.50 The act branch reaches conduct that the actor, as a reasonable person, should recognize as involving an unreasonable risk of invading another's interest.51 The omission branch reaches a failure to do an act necessary for the protection or assistance of another, but only when the actor is under a duty to do it.52 The earlier subsections measured a lawyer's conduct against the reasonable-lawyer standard; § 284 identifies what that conduct can be. A lawyer can fall below the standard by doing something carelessly or by leaving something undone. A malpractice complaint ordinarily points to one specific act or omission, so sorting it into a branch tells you what the client must prove: for an act, that a reasonable lawyer would have seen the risk; for an omission, that the lawyer owed a duty to act at all.
For a lawyer, the act branch covers the affirmative work product of the representation. A lawyer may be negligent in drafting or recording documents, in searching records, in giving advice, in negotiating a settlement or advising its acceptance, in preparing for trial, and in the strategies and techniques used at trial, and these claims arise in any kind of representation, not only litigation.53 Faulty drafting, a careless title search, advice that misstates the law, and a badly handled negotiation share one feature: the lawyer took a step, the step carried a risk that a reasonable lawyer would have seen, and the client relied on the result. The objective measure from earlier in this chapter applies without change, so a lawyer who skipped the research cannot answer that the danger went unnoticed.
The omission branch needs a limiting condition that the act branch does not, because tort law is slow to punish a person for failing to help someone else. Section 284(b) supplies the condition by reaching only those failures where the actor is under a duty to do the necessary act.54 In malpractice that duty comes from the undertaking: because the lawyer took on the work and stands in a special relationship with the client, the lawyer owes a duty of care.55 The earlier discussion of the attorney-client relationship showed how the undertaking forms. It also matters because of what the client does next. A client who hires a lawyer stops monitoring the matter, so the lawyer's silence or inaction is itself the hazard, since no one else is positioned to notice that a deadline is approaching or that an offer has arrived.
The omissions that recur in lawyer cases all grow out of that dependence. A lawyer may fail to file a claim or defense within the required time, and a lawyer has a duty to communicate to the client material information relating to the client's case, so failing to relay the status of the matter or an offer of settlement is a failure to act of the same kind.56 The ethics rules describe the same obligations: MRPC 1.4 requires the lawyer to keep the client reasonably informed about the status of the matter, and MRPC 1.3 requires reasonable diligence and promptness. One limit keeps the category from growing without bound. The duty reaches only material information, so a lawyer is not liable for failing to advise a client to assert a claim for insurance benefits for which the client is not eligible, because the undisclosed information was not material.57 Even a nondisclosure that proves breach leaves the client to prove that it caused damage.58
Omissions of this kind are often the easiest breaches to prove. Filing before the limitations period runs is a mechanical step, not a discretionary one, and because mechanical steps implicate no professional judgment, courts readily find liability when they are missed.59 The clearest omissions can even reach a jury without an expert, as where a lawyer failed to file a timely notice of appeal despite the client's instruction to appeal.60 A deadline missed because of a legal judgment is different, and the next subsection takes up judgment.
The duty to act stays with the lawyer who hands the task to someone else. In Kleeman v. Rheingold, a lawyer hired a process server two days before the limitations period on a medical malpractice claim was about to expire. The server delivered the papers to the doctor's secretary instead of the doctor, the trial court held service defective, and the underlying case was dismissed as time-barred. The majority held that lawyers have a nondelegable duty to see that process is validly served, so the lawyer could not avoid responsibility by pointing to an independent contractor.61 The majority gave three supports: the ethics rules do not let a lawyer limit malpractice exposure by contract or otherwise, both the code of legal ethics and public perception expect lawyers to control and supervise the entire litigation, and timely service is an integral part of the lawyer's task.62 The mechanism is easy to see. The client chose the lawyer and has no practical way to evaluate or sue a vendor the lawyer picked, so leaving responsibility with the lawyer puts the cost of the vendor's mistake on the person who selected and could supervise the vendor.
Nondelegability is a narrow doctrine. Lawyers are ordinarily not liable for the conduct of independent contractors they retain, but liability may arise if the contractor performs a nondelegable duty, and few courts have stated a general rule on when a duty cannot be delegated, which makes a lawyer's exposure hard to predict.63 A concurring judge in Kleeman objected that the majority's rule gives lawyers a strong incentive to serve process themselves or to supervise outside servers directly, and so favors large firms with in-house servers over small firms and solo practitioners.64 The safe exam instinct is that a task central to the representation, such as timely service, cannot be outsourced out of existence.
The undertaking that creates the duty to act also marks where it ends. A lawyer may limit the scope of a representation if the limitation is reasonable and the client gives informed consent (MRPC 1.2(c)), and AmBase Corp. v. Davis Polk & Wardwell is cited for limiting a lawyer's duty to the matter the lawyer undertook.65 A failure to act is actionable only where there was a duty to act, so an omission outside the agreed scope is not a breach.
A scope limit narrows what the lawyer promised to do, and it does not excuse careless performance of what the lawyer did promise. A lawyer who carelessly drafts the lease in the first scene remains liable for that act. The ethics rules also still bar an agreement that prospectively limits malpractice liability,66 permitting one only when the client is independently represented in making it (MRPC 1.8(h)). A student should therefore ask two separate questions of any omission: whether the task fell within what the lawyer undertook, and whether the lawyer's handling of it, including any delegation, met the standard of care.
Errors of Judgment
A lawyer whose conduct meets the § 282 standard has not been negligent, whatever became of the client's matter.68 Courts apply that definition to legal work through the error-of-judgment rule: a professional is not liable for a mere error of judgment, and tactical decisions or decisions on a debatable point of law are not actionable so long as the lawyer exercises best judgment.69 The rule rests on two facts about legal practice. Outcomes depend on judges, opponents, and fact-finders whom no lawyer controls, and a professional ordinarily answers only for negligence because the service carries no guaranteed result.70 A lawyer who feared liability whenever a reasonable choice lost would also begin to practice defensively, and the advocacy the client hired the lawyer to provide would suffer.
Read literally, however, the rule would erase the tort, because almost any lawyer error can be relabeled afterward as a good-faith judgment. Courts therefore confine it to situations in which reasonable professional judgments could differ. The working test is that a lawyer is negligent only by doing what no reasonably prudent lawyer could do, or by failing to do what every reasonably prudent lawyer must do, and between those extremes lies a wide field of discretion.71 The field is wide because most legal assignments are complex enough that competent lawyers approach them in different ways. That explains why an expert who testifies only that the expert would have handled the matter another way has not proved breach: the issue is whether any lawyer exercising reasonable care could have done what the defendant did.72
The phrase best judgment needs care, because it can turn an objective test into a subjective one. A jury told that a professional is not liable so long as she used her best judgment may conclude that sincerity ends the inquiry, even though a lawyer's best judgment can still fall below the accepted standard. For that reason courts in West Virginia, and Pennsylvania in a medical case, have criticized mistake-of-judgment instructions as injecting subjectivity into the evaluation of the standard of care.73 The rule shields reasonable choices, and a sincere but unreasonable choice remains a breach.
Courts draw the line in the same place for expert witnesses. A defense lawyer may normally elect to cross-examine the plaintiff's expert rather than introduce opposing expert testimony, yet it would be unreasonable to call no expert in a case that requires one.74 Decisions about which witnesses and documents to present fall on the protected side as well. In Harris v. Farmer, the plaintiff argued that the lawyer was negligent in failing to subpoena or present certain witnesses and documents, and the Michigan Court of Appeals, citing precedent protecting a lawyer's exercise of discretion, held that summary disposition was properly granted for the lawyer.75 In each protected example the lawyer chose among options by weighing considerations that only the lawyer was placed to weigh. What removes protection is a choice that no reasonably prudent lawyer would have made.
Unsettled law is the setting where the rule appears most often, and courts differ about how far it reaches there. The Arkansas Supreme Court in Evans v. Hamby wrote that a lawyer is not liable as a matter of law for a mistaken opinion on a point the state's highest court has not settled and on which reasonable attorneys may differ.76 That is the generous end of the range, and the better view is narrower: debatable issues of importance cannot be ignored when a reasonably prudent lawyer would take precautions to protect the client.77 In L.D.G., Inc. v. Robinson, the Alaska Supreme Court applied that view to a lawyer defending a bar in a dram shop action who did not add a visibly intoxicated consumer as a party for allocation of fault. It held that the open state of the law did not make the lawyer immune, because a prudent defense lawyer would have considered adding the consumer.78 The reasoning follows from the cost of each choice. Naming one more party protects the client if the law resolves against the lawyer's guess, whereas leaving the party out stakes the client's case on that guess, so uncertainty is a reason to take the protective step and no reason to skip it.
The unsettled-law cases also show where the protection returns. In Darby & Darby, P.C. v. VSI International, Inc., the New York Court of Appeals held that a firm had no duty to tell clients about possible advertising-liability insurance coverage for patent litigation costs, because that theory had been rejected by courts in the two states most relevant to the case and was largely unrecognized elsewhere.79 The duty to know about novel theories, trends in the law, and out-of-state precedent reaches only as far as a reasonably prudent lawyer would be aware of those developments. What separates Darby from L.D.G. is whether a reasonably prudent lawyer would have seen the protective step. Joining a party for fault allocation was an ordinary move that a prudent defense lawyer would at least have weighed, while the insurance theory was one that careful lawyers at the time had good reason to pass over.
Advice about settlement is a familiar setting for the rule. Courts have treated a recommendation to settle as an exercise of judgment, as in Thomas v. Bethea.80 The protection assumes, however, that the client decided on the basis of a real judgment, and it falls away when the lawyer supplied only half the picture. In Wood v. McGrath, North, Mullin & Kratz, a lawyer recommended settlement without disclosing that the agreement conceded issues the client might have won, and the Nebraska court held that the recommendation was not an exercise of best judgment.81 A recommendation built on a concealed trade-off cannot be called a reasonable prediction, because the client was never told what the prediction cost.
Judgment can be protected only where judgment was exercised. Steps that are mechanical rather than discretionary, such as filing suit before the limitations period runs, implicate no professional judgment, so courts are more likely to find liability when they are missed.82 A deadline can still hide a judgment call. A lawyer who reads a tolling statute and reasonably concludes that it extends the filing date has made a legal judgment, and the client needs expert testimony to show that the judgment fell below professional standards, while a lawyer who lets the date pass has made no judgment at all.83
Exam stems signal the answer through their wording. A stem saying that the lawyer acted reasonably, exercised due care, or made a considered choice among legitimate options describes conduct at or above the standard, so there is no breach and the claim fails at that element without reaching causation or damages. A stem reporting only that the client lost, or that a settlement came in below hope, tells you nothing about the lawyer's conduct and leaves breach unproved. The stems that point toward liability describe a different kind of fact: a lawyer who never researched the law, who ignored an obvious protective step, who withheld material information before a settlement decision, or who let a deadline pass. Those facts remove the judgment from the error of judgment, and good faith does not restore it.