How Long Does a Legal Malpractice Case Take?

The Bureau of Justice Statistics studied tort trials concluded in a national sample of state courts in 2005. Its "professional malpractice" category covers non-medical professionals, which includes lawyers but also others. As of that study, the median time from filing of the complaint to verdict or judgment was:

Non-medical professional malpractice cases that went to trial in state courts in 2005 took a median of 26.5 months from filing to verdict or judgment, according to the Bureau of Justice Statistics. In the same study, plaintiffs won 39.2% of those trials.

The comparison is useful even with its limits. Professional malpractice trials took longer than tort trials overall (26.5 months against 22.3 months), and jury trials took longer than bench trials. That is consistent with the extra layers of proof described below.

Two cautions. These numbers only cover cases that reached a verdict, and the study notes that tort trials are a small share of tort case dispositions; settlements usually are not part of the public record. And the data is old. It is still the most detailed national breakdown we found that separates professional malpractice from other torts, and we will update this page if newer data is published.

The clock that matters first is the one that runs before you file anything: the statute of limitations. In California, a legal malpractice suit must generally be filed within one year after the client discovers the wrongful act, and no later than four years after it (Code of Civil Procedure § 340.6). Texas and Florida allow two years, and New York three. See the statute of limitations table.

Before filing, a malpractice lawyer typically needs to:

• Get and read your client file. See how to get your case file.
• Review the original matter to judge the case within a case
• Consult an expert witness on whether the standard of care was breached

How long this takes depends mostly on how quickly the file arrives and how complex the original matter was. Arriving with your documents organized, using the evidence checklist, can shorten it.

Some states set expert deadlines at the start of the case. Pennsylvania requires a certificate of merit filed with the complaint or within 60 days after it. Georgia requires an expert affidavit with the complaint in actions against attorneys.

After filing, most malpractice cases move through the same stages. Each one can be short or long depending on the court and the parties; we do not have reliable national data for individual stages, so none is given here.

1. Pleadings and early motions. The lawyer's defense often challenges the filing deadline or causation early.
2. Discovery. Documents, depositions, and expert reports for both the malpractice claim and the original case. This is usually the longest stage.
3. Summary judgment. Either side can ask the court to decide the case without a trial. Rogers v. Zanetti (Tex. 2017) ended here, with the court affirming judgment for the lawyers on causation.
4. Mediation and settlement. Can happen at any point, and often happens after key rulings or expert reports.
5. Trial and post-trial motions. The Bureau of Justice Statistics found post-trial motions were filed in nearly 1 out of 3 tort trials.
6. Appeal. Either side can appeal a final judgment, which adds more time.

For what happens inside each stage, see the legal malpractice lawsuit process.

• Two cases in one. You usually must prove both the mistake and what would have happened in the original matter. In Texas, when a malpractice case arises from prior litigation, the client must prove a more favorable result would have been obtained had the lawyer met the standard of care (Rogers v. Zanetti, 2017). Re-creating that case takes time. See the case within a case.
• Experts on both sides. Experts on the standard of care, and often on the original case, have to be retained, write reports, and be deposed. See the expert witness guide.
• Insurance. When the lawyer has malpractice insurance, the insurer is often involved in defense and settlement decisions, which can add steps.
• Collectibility. Proving the other side in the original case could have paid adds another layer of discovery.
• Deadline fights. Defendants often argue the claim was filed too late, and resolving when you knew or should have known about the mistake can take its own round of discovery and motions.
• Appeals. A verdict for either side can be appealed, which can add a long stretch after trial.

Sometimes the malpractice case cannot really start until something else finishes. Several rules deal with that waiting period, which is why tolling matters.

• Appeals in the original case. In Texas, the limitations period for malpractice committed in a lawsuit is tolled until all appeals in that lawsuit are exhausted, a rule from Hughes v. Mahaney & Higgins (1991).
• Same lawyer, same matter. California's statute tolls the deadline while the lawyer continues to represent the client on the matter where the mistake happened. This is known as continuous representation.
• Criminal convictions. In California, actual innocence is a necessary element of a malpractice claim against a criminal defense lawyer (Wiley v. County of San Diego, 1998), and Texas requires exoneration (Peeler v. Hughes & Luce, 1995). Post-conviction proceedings can take years before a malpractice claim is possible. See criminal defense malpractice.

These rules are narrow and state-specific. Do not assume one applies to you without a lawyer confirming it.

The practical lesson is that waiting has a cost either way. Filing too early can mean suing before the original matter shows what you actually lost. Filing too late can end the claim entirely. The Texas dissent in Gray v. Skelton (2020) captures the tension: the court's majority extended the pause in limitations to certain post-conviction proceedings, while the dissent warned against tolling deadlines indefinitely. When rules are that contested, a lawyer's reading of your specific facts is worth getting early.

Because there is no reliable month-by-month data for legal malpractice alone, the most useful way to think about timing is by how much has to be proven. The comparisons below describe relative complexity, not predicted durations.

Estate planning claims deserve a note. Drafting mistakes in wills and trusts often surface only after a death, which can be long after the work was done. In the ABA's Profile of Legal Malpractice Claims for 2020 to 2023, estate, trust, and probate work produced 13.58% of reported claims, the most of any practice area. Time limits for these claims vary widely by state, which makes early advice especially important. See estate planning malpractice.

What you can do while the case is pending

• Keep every document and message related to the case, and add to your timeline as things happen.
• Respond quickly when your lawyer asks for information or signatures. Delays on your side add up.
• Keep records of new losses tied to the mistake, such as interest, penalties, or fees paid to fix it.
• Ask your lawyer for a realistic schedule for your court, and ask again after major rulings.
• Check with your lawyer before talking to anyone about the case, including the lawyer you are suing or their insurer. Statements made casually can end up as evidence.

• A clear, documented mistake. A dismissal order for a missed deadline is easier to prove than a disputed judgment call. See missed deadline claims.
• Organized evidence. A complete file and timeline shorten the review before filing.
• A clear damages number. Cases with a defined loss, such as missing trust account funds, can be easier to value and settle. See stolen client funds.
• Early mediation. Settlement can happen at any stage, and many civil cases end that way.

If the dispute is really about a bill, fee arbitration through a bar program is designed to resolve it without a full lawsuit. See attorney fee dispute arbitration.

The one thing you cannot speed up after the fact is a missed filing deadline. If you think your lawyer's mistake cost you money, a free case review takes about two minutes and can connect you with an independent attorney in your state before time runs out.