The duty that arises from an engagement, the standard a professional is held to, proving that a better outcome was available, the certificate or affidavit of merit required at filing, when the limitation period starts and what tolls it, the outer bar that runs regardless of discovery, fee disputes raised as counterclaims, and insurance written on a claims-made basis.
Merit screening statutes require a claimant suing a professional to file a supporting statement from a qualified practitioner, or a certification that expert proof is unnecessary. The statutes vary in who may sign, what the statement must assert, when it is due and whether the underlying expert must be identified. Non-compliance commonly produces dismissal, and in several states that dismissal operates with prejudice or after the limitation period has expired, ending the claim.
A professional defending a liability claim commonly argues that the client was informed of the options and risks and chose the course now complained of, or that the decision was a considered judgment among reasonable alternatives. Both defenses depend on a contemporaneous record. Informed consent requires that adequate information was communicated, not merely that a document was signed, and judgmental immunity protects a choice made after reasonable inquiry rather than one made in ignorance.
Damages in a professional liability claim are compensatory and are measured by the difference between the actual position and the position competent work would have produced. Recoverable items typically include the value of the lost claim or bargain, fees paid for defective work and the cost of correcting it. Emotional distress and punitive awards are generally unavailable absent conduct beyond negligence, and consequential losses must satisfy foreseeability and certainty requirements.
A professional must exercise the knowledge, skill, thoroughness and preparation ordinarily brought to comparable work by members of the same profession. The measure is objective and does not require a correct outcome. Because the content of the standard is not within common experience, most jurisdictions require expert testimony to establish it, subject to a narrow exception for failures obvious to a layperson. Holding out as a specialist raises the measure to that of the specialty.
A claim against a professional and a dispute over the professional's fee are usually two aspects of one disagreement. Unpaid fees may be pursued as an affirmative claim, asserted as setoff, or submitted to a fee arbitration program. A claimant may seek forfeiture or disgorgement of fees paid, a remedy that in many states rests on breach of fiduciary duty rather than negligence and does not require proof that the work caused separate loss.
Causation requires proof that the professional's departure changed the outcome, which in litigation matters means retrying the underlying dispute within the malpractice action. The claimant must establish that the original claim or defense would have succeeded. Many jurisdictions add collectability, requiring proof that a hypothetical judgment could have been recovered. Transactional and settlement claims use distinct proofs of a lost better bargain.
A duty of professional care arises from an engagement, which may be formed by express agreement or by conduct that would lead a reasonable person to believe the professional had undertaken the work. The engagement's terms fix the scope of the duty, and matters outside that scope generally fall outside it. A limited class of non-clients may be owed a duty where the professional's work was intended to benefit them, and a consultation that never becomes an engagement can still create obligations.
An extended reporting endorsement, commonly called a tail, extends the time within which a claim arising from work before the policy ended may be reported. It does not extend the policy period or add a new limit; it preserves the expiring policy's limit for a further reporting window. The right to elect is normally confined to a short period after termination, priced as a percentage of the expiring premium, and available only if the premium is paid in full.
A claims-made policy responds to claims first made against the insured during the policy period and reported in accordance with the policy's conditions. It differs fundamentally from occurrence cover, which responds to conduct during the period whenever the claim arrives. Retroactive dates limit how far back covered work extends, prior knowledge conditions exclude matters known at inception, and late reporting can defeat cover for a claim otherwise within the grant.
A statute of repose fixes an absolute outer date measured from the defendant's conduct or from substantial completion of the work, without regard to when the harm was discovered. It differs from a limitation period in trigger, in the availability of tolling and, in many states, in character: repose is treated as extinguishing the right rather than barring the remedy. Consequences follow for tolling agreements, for relation back and for the choice of forum.
Limitation periods for professional liability claims are set by state law and vary in length, trigger and tolling. The traditional rule ran the period from the negligent act. Most states now apply a discovery rule keyed to when the claimant knew or should have known the facts constituting the wrong, and several also require actual injury before the claim accrues. Continuous representation, concealment and disability commonly suspend the running, subject to an outer limit.
