CA Legal Malpractice CLS key terms

The fiduciary and contractual bond formed when a person manifests intent to obtain legal services and the lawyer agrees or fails to clearly decline. It triggers duties of competence, confidentiality, loyalty, and communication, and is the foundation of most malpractice claims.

The lawyer's obligation to perform legal services with the skill, knowledge, and care ordinarily possessed and exercised by reputable practitioners under similar circumstances. Breach of this duty is the first element a plaintiff must prove in a malpractice action.

The benchmark of professional conduct measured by what a reasonably competent attorney would do in comparable circumstances, usually established through expert testimony. It is not measured by the best possible practice or by hindsight, but by customary professional norms.

A failure to meet the applicable standard of care, whether by act or omission. Plaintiffs must identify a specific deviation, such as missing a filing deadline, failing to research controlling law, or neglecting client instructions, rather than merely showing an unfavorable outcome.

Conduct falling below the professional standard expected of lawyers, encompassing careless errors, omissions, and oversights. It is the most common theory of legal malpractice and requires proof of duty, breach, causation, and damages.

Compensable economic or other harm the client actually suffered because of the lawyer's error, such as a lost judgment, forfeited claim, or added costs. Speculative or purely emotional harm generally will not support a malpractice recovery.

The link showing the lawyer's breach directly and foreseeably produced the client's injury. If the harm would have occurred regardless of the error, or an independent intervening event caused it, causation fails and the claim cannot succeed.

The but-for connection between the attorney's conduct and the client's loss. The plaintiff must show that absent the error the harm would not have happened, often combined with proximate cause under a substantial factor analysis.

The procedural device requiring a malpractice plaintiff to prove the underlying matter would have succeeded but for the lawyer's error. Often called the trial-within-a-trial rule, it demands proof of the original claim's merits and collectability.

A condition in which the underlying defendant lacks assets or insurance to satisfy a judgment, meaning the client could not have collected even with competent representation. This defense defeats causation and damages in a malpractice action.

The requirement that a malpractice plaintiff prove the underlying judgment would have been recoverable from the original adverse party. Without evidence of collectability, the client cannot establish that the attorney's error caused a real economic loss.

A written contract defining the scope of representation, fees, responsibilities, and termination. Clear scope provisions help determine whether an alleged error fell within the lawyer's undertaking and can limit or expand professional duties.

The specific matters and tasks a lawyer has agreed to handle for a client. Work outside that agreed boundary may fall outside the duty of care, while ambiguous scope is often construed against the drafting attorney.

An arrangement in which a lawyer handles only discrete tasks, such as drafting a document or appearing at one hearing, rather than the entire matter. The lawyer owes full competence on the assigned tasks and must clearly document the limits.

Legal assistance divided into separate components the client may purchase individually, with the client handling remaining tasks. Lawyers must confirm the division in writing and avoid leaving clients with misleading impressions of ongoing representation.

The lawyer's obligation of utmost loyalty, good faith, and candor toward the client, including avoiding self-dealing and conflicts. Breach can support both malpractice and separate breach-of-fiduciary-duty claims with different remedies and limitations periods.

A circumstance in which a lawyer's personal interests, duties to another client, or prior relationships create a substantial risk of materially limiting representation. Undisclosed conflicts can render representation negligent and may lead to disqualification or fee forfeiture.

A client's agreement to a proposed course of action, including conflicts or settlement, made after the lawyer discloses all material facts and risks. Valid consent generally must be confirmed in writing for conflict waivers under professional rules.

The lawyer's duty not to reveal information relating to the representation without client consent, broader than the evidentiary privilege. Unauthorized disclosure can injure the client and support malpractice or disciplinary claims independent of any litigation harm.

An evidentiary rule protecting confidential communications between lawyer and client made for legal advice. It belongs to the client, survives termination, and can be waived, but it does not protect underlying facts or communications shared with third parties.

Protection for materials a lawyer prepares in anticipation of litigation, shielding mental impressions and strategy from discovery. It is distinct from the attorney-client privilege and can be overcome by substantial need and undue hardship showings.

The statutory deadline for filing a malpractice suit, varying by jurisdiction and often measured from the act, discovery, or cessation of representation. Missing it bars the claim entirely, and accrual rules are frequently litigated.

A doctrine delaying accrual of a malpractice claim until the client knows or reasonably should know of the injury and its cause. It protects clients from unknowable harm but is bounded by statutes of repose in many states.

A rule that tolls the limitations period while the attorney continues to represent the client on the same matter. It ends when representation terminates or the client learns of the error, depending on the jurisdiction.

An absolute outer time limit on filing a malpractice claim, regardless of when the injury was discovered. Unlike a limitations period, it is generally not subject to tolling and can bar otherwise timely claims.

Suspension of the limitations clock during specified circumstances, such as minority, incapacity, or ongoing representation. Properly identifying tolling events is essential because failing to file within the revived period forfeits the claim.

Testimony from a qualified attorney explaining the applicable standard of care and whether the defendant deviated from it. Most jurisdictions require it in malpractice cases because lay jurors cannot judge legal competence without guidance.

A narrow doctrine allowing malpractice claims to proceed without expert testimony when the error is so obvious that lay jurors can evaluate it unaided, such as missing a plainly stated deadline. Courts apply it sparingly.

A circumstantial evidence doctrine permitting an inference of negligence when the injury would not ordinarily occur absent carelessness and the instrumentality was under the defendant's control. Its use in legal malpractice is rare and limited.

A defense protecting lawyers from liability for good-faith tactical or strategic decisions that later prove unsuccessful. It distinguishes an informed exercise of professional judgment from a careless failure to investigate or advise.

A doctrine shielding attorneys from liability for mere mistakes in judgment where they chose among reasonable options after adequate investigation. It does not protect decisions made without research, client consultation, or basic competence.

A defense asserting the client's own carelessness contributed to the loss, potentially barring or reducing recovery depending on jurisdiction. Courts often scrutinize it because clients rely on lawyer expertise, but it can apply to concealment or ignored advice.

A doctrine allocating responsibility between lawyer and client and reducing damages in proportion to the client's share of fault. It replaced contributory negligence as a complete bar in many jurisdictions.

The client's duty to take reasonable steps to limit losses after discovering the lawyer's error. Failure to mitigate can reduce or bar recovery for harm that reasonable corrective action would have avoided.

A defense that the client knowingly and voluntarily accepted a known risk created by the lawyer's conduct. It requires actual awareness and voluntary acceptance, and is rarely successful absent clear written disclosure.

Legal responsibility imposed on a firm or supervising lawyer for the malpractice of subordinate attorneys or staff acting within the scope of employment. It exists even without personal fault and is often paired with direct negligent supervision claims.

A claim that a supervising attorney or firm failed to adequately train, monitor, or oversee a subordinate, allowing harm to occur. It is a direct theory of liability that does not depend on proving the subordinate's own negligence.

The doctrine making an employer liable for wrongful acts committed by employees within the scope of employment. In law firms it can extend to associates and staff, though intentional or personal misconduct may fall outside its reach.

A fee arrangement paying the lawyer a percentage of the recovery, typically zero if the client loses. Fee disputes frequently arise in malpractice cases, and improper fee collection can itself constitute a breach of duty.

A disagreement over the amount, basis, or reasonableness of attorney compensation, often resolved through arbitration or civil action. Excessive or unconscionable fees may violate professional rules and support malpractice or fiduciary claims.

A quasi-contract remedy allowing recovery for the reasonable value of services rendered when no enforceable fee agreement exists. Courts weigh benefit conferred and may deny recovery where the lawyer's misconduct caused the discharge.