Minnesota legal malpractice law
How to sue your lawyer in Minnesota.
Minnesota gives you 6 years to sue a lawyer, starting when some damage occurs, not when you discover it. You also need an expert affidavit. Here are the rules.
In Minnesota you have six years to sue a lawyer for legal malpractice, and the six years start when the mistake first causes you some damage, even if you do not know about it yet. Minnesota also has a strict filing rule: in most cases, your lawyer must serve an affidavit of expert review with the complaint.
Here is how the Minnesota deadline and expert rules work, and where to go for fee disputes and stolen funds.
Key takeaways.
- In Minnesota, you have six years to sue a lawyer for malpractice, and the clock starts when some damage first occurs, not when you discover the mistake (Minn. Stat. § 541.05; Antone v. Mirviss, 2006).
- Minnesota has rejected the discovery rule for legal malpractice.
- Minn. Stat. § 544.42 requires an affidavit of expert review served with the complaint when expert testimony is needed, and missing it can mean mandatory dismissal with prejudice.
- A former criminal defendant's claim does not accrue until postconviction relief is granted (Noske v. Friedberg, 2003).
- The Minnesota Client Security Board can reimburse up to $150,000 for losses from lawyer dishonesty.
Check your Minnesota claim.
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Minnesota at a glance.
Compare all states- Deadline to sue
- 6 years from when some damage occursMinn. Stat. § 541.05, subd. 1
- Clock starts
- Six years from when some compensable damage first results from the lawyer's mistake, whether or not you know about it.
- Discovery rule
- No
- Paused while lawyer still represents you
- Unsettled
- Outer limit (repose)
- None
- Expert needed
- Required in most cases
- Certificate of merit
- Affidavit of expert review with the pleadings, plus expert identification affidavit within 180 days (Minn. Stat. § 544.42)
- Criminal defense cases
- Postconviction relief required; claim accrues when relief is granted (Noske v. Friedberg)
- Stolen client money
- Minnesota Client Security Board
- Lawyer discipline
- Office of Lawyers Professional Responsibility
- Malpractice insurance
- Not required; lawyers report coverage on annual registration (Lawyer Registration Rule 22)
General rules only. Tolling, exceptions, and the facts of your case can change the deadline. Verified 2026-09-23.
How long do you have to sue a lawyer in Minnesota?
Minnesota's statute of limitations for legal malpractice is six years under Minn. Stat. § 541.05, subd. 1. The Minnesota Supreme Court confirmed in Antone v. Mirviss, 720 N.W.2d 331 (Minn. 2006), that "the statute of limitations for legal malpractice is six years."
The damage rule
The hard part is the start date. Antone describes three approaches used around the country: the occurrence rule, the discovery rule, and the damage rule. The court said Minnesota has "rejected the discovery rule" and instead uses the damage rule, under which the claim accrues when "some" damage has occurred as a result of the malpractice. The court then held that the clock starts "on the occurrence of any compensable damage, whether specifically identified in the complaint or not."
In Antone, a lawyer drafted a flawed prenuptial agreement. The client did not lose property until a divorce court ruled years later, but the court held the claim accrued on the wedding day, when the client first became exposed to the loss. His suit was too late. In Minnesota, the six-year malpractice clock starts when the lawyer's mistake first causes any compensable damage, even if you do not learn of the mistake until years later.
Continuous representation and concealment
We did not find a Minnesota appellate decision adopting the continuous representation rule for lawyers. In Sabes & Richman, Inc. v. Muenzer, 431 N.W.2d 916 (Minn. Ct. App. 1988), the court declined to reach the argument because it was not raised below, so the question is unsettled. The same opinion noted that ignorance of a claim does not delay accrual absent allegations such as fraud. If a lawyer hid the mistake, raise that with your attorney right away. We found no statute of repose for legal malpractice in Minnesota.
What you have to prove in Minnesota
In Jerry's Enterprises, Inc. v. Larkin, Hoffman, Daly & Lindgren, Ltd., 711 N.W.2d 811 (Minn. 2006), the Minnesota Supreme Court restated the four traditional elements: "(1) the existence of an attorney-client relationship; (2) acts constituting negligence or breach of contract; (3) that such acts were the proximate cause of the plaintiff's damages; [and] (4) that but for defendant's conduct, the plaintiff would have been successful in the prosecution or defense of the action." The fourth element is the case within a case. Jerry's Enterprises held that "but for" causation applies in transactional matters too, not just lawsuits.
The expert affidavit statute
Minnesota has a certificate of merit rule that covers lawyers. Minn. Stat. § 544.42 applies to actions against a "professional," defined to include a licensed attorney, when expert testimony is needed to make a prima facie case. It requires two affidavits:
- Affidavit of expert review, served with the pleadings. Your attorney must state that the facts were reviewed with a qualified expert who believes the defendant deviated from the standard of care and caused injury. The statute allows a limited exception when review could not reasonably be obtained before a deadline.
- Affidavit of expert identification, served within 180 days after discovery begins, naming each expert witness and summarizing the opinions and grounds.
Under Minn. Stat. § 544.42, failing to serve the affidavit of expert review within 60 days after the defendant demands it results, on motion, in mandatory dismissal with prejudice of each claim that needs expert testimony. People suing without a lawyer are bound by the same requirements. See our expert witness guide.
Criminal defense malpractice in Minnesota
In Noske v. Friedberg, 670 N.W.2d 740 (Minn. 2003), a man convicted in 1990 later won habeas corpus relief on grounds of ineffective assistance, then sued his trial lawyer. The Minnesota Supreme Court held that until he obtained postconviction relief and had the conviction set aside, his malpractice claim could not have survived a motion to dismiss, so it did not accrue until relief was granted in 1999. In Minnesota, a former criminal defendant's malpractice claim against a defense lawyer does not accrue until postconviction relief is granted. That both limits and protects clients: you need the conviction set aside first, but the six years do not start before then. See criminal defense malpractice.
If the problem is fees or missing money
Minnesota has no single statewide fee arbitration program. According to the director of the Office of Lawyers Professional Responsibility, district bar associations maintain fee arbitration panels, and the process is voluntary on the lawyer's part. When a complaint is only a fee dispute, the Office may dismiss it and give you the contact for your local arbitration committee. In Ramsey County, fee arbitration is free to all participants. See our fee arbitration guide.
If a lawyer took your money, the client protection fund is run by the Minnesota Client Security Board, created by the Minnesota Supreme Court. It covers losses from lawyer dishonesty during an attorney-client relationship, such as stolen settlements, failure to refund fees when little or no work was done, and loans the lawyer never meant to repay. The Minnesota Client Security Fund may reimburse up to $150,000 for money or property lost through a lawyer's dishonesty. It does not cover incompetence, neglect, or fee disputes. See how to get money back from a client protection fund.
Filing a grievance with the Office of Lawyers Professional Responsibility
Complaints against Minnesota lawyers go to the Office of Lawyers Professional Responsibility (OLPR). An intake attorney reviews each complaint. If it gives a reasonable basis to believe misconduct occurred, the OLPR or a volunteer District Ethics Committee investigates. Otherwise it is dismissed.
The OLPR is candid about its limits: it "cannot represent you, give you any legal advice, effect or change the outcome of a court decision, or recover money for you." It also warns clients not to wait for its investigation before protecting their legal interests. A Minnesota bar complaint cannot recover money for you and does not pause the six-year malpractice deadline. See legal malpractice vs. a bar complaint.
Minnesota does not require lawyers to carry malpractice insurance, but Rule 22 of the Rules of the Supreme Court on Lawyer Registration requires annual reporting of professional liability insurance coverage.
What to do next in Minnesota
- Identify the first date the mistake cost you anything. Count six years from there.
- Request your complete client file in writing. See how to get your case file.
- Leave time for expert review. The affidavit is due with the complaint.
- For theft, contact the Client Security Board. For billing, ask your district bar about fee arbitration.
If you think your lawyer's mistake cost you, a free case review takes about two minutes and can connect you with an independent attorney in Minnesota who handles legal malpractice claims.
Common questions.
How long do I have to sue my lawyer in Minnesota?
Six years under Minn. Stat. § 541.05. The clock starts when the lawyer's mistake first causes some compensable damage, not when you discover it, under Antone v. Mirviss (2006).
Does Minnesota have a discovery rule for legal malpractice?
No. The Minnesota Supreme Court has rejected the discovery rule and uses a damage rule, so the six years can run out before you know anything went wrong.
Do I need an expert affidavit to sue a lawyer in Minnesota?
Usually yes. Minn. Stat. § 544.42 requires an affidavit of expert review served with the pleadings when expert testimony is needed, and an affidavit identifying experts within 180 days of the start of discovery. Missing them can lead to mandatory dismissal with prejudice.
Can I sue my criminal defense lawyer in Minnesota?
Only after your conviction has been set aside through postconviction relief. Under Noske v. Friedberg (2003), the malpractice claim does not accrue until that relief is granted.
Where do I file a complaint against a lawyer in Minnesota?
With the Office of Lawyers Professional Responsibility. It can investigate and pursue discipline, but it says it cannot give legal advice, change a court decision, or recover money for you.
How much can the Minnesota Client Security Board pay?
Up to $150,000 for money or property lost because of a lawyer's dishonesty. It does not cover incompetence, neglect, or fee disputes.
Sources.
Statutes, court rules, appellate opinions, and bar publications we relied on. See our editorial standards.
- 1.Antone v. Mirviss, 720 N.W.2d 331 (Minn. 2006) (Caselaw Access Project)
- 2.Jerry's Enterprises v. Larkin, Hoffman, 711 N.W.2d 811 (Minn. 2006) (Caselaw Access Project)
- 3.Noske v. Friedberg, 670 N.W.2d 740 (Minn. 2003) (Caselaw Access Project)
- 4.Sabes & Richman, Inc. v. Muenzer, 431 N.W.2d 916 (Minn. Ct. App. 1988) (Caselaw Access Project)
- 5.Minn. Stat. § 544.42, Actions against professionals; certification of expert review
- 6.Minn. Stat. § 541.05
- 7.Minnesota Client Security Board
- 8.OLPR: Fee Disputes (Bench & Bar of Minnesota, March 2011)
- 9.Minnesota bars: Dispute with an Attorney (Ramsey County fee arbitration)
- 10.OLPR: Complaint FAQs
- 11.Rules of the Supreme Court on Lawyer Registration




