You can sue an attorney for filing a frivolous lawsuit, but the path is narrow and most people are better off asking the judge in the original case to sanction the lawyer instead. A separate suit — usually framed as malicious prosecution — requires that the underlying case already ended in your favor, that no reasonable attorney would have believed the claim had merit, and that the lawyer pursued it for an improper purpose like harassment. Even then, a doctrine called the litigation privilege shields most attorney conduct, and anti-SLAPP statutes can turn your new lawsuit into a bill you owe the other side.
Start Inside the Original Case
Before you think about a new lawsuit, look at the tools built into the case you’re already in. They’re faster, cheaper, and use a judge who has already watched the opposing lawyer’s behavior firsthand. You don’t have to prove malice, and the remedy can include your attorney’s fees.
Rule 11 in Federal Court
Federal Rule of Civil Procedure 11 requires every attorney to certify that their filings aren’t presented for an improper purpose like harassment or delay, that the legal arguments are warranted by existing law, and that the factual claims have evidentiary support.1Legal Information Institute. Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions If a filing violates those requirements, you can move for sanctions.
There’s a critical procedural catch. Rule 11 has a “safe harbor” provision: you must serve your sanctions motion on the opposing attorney and wait 21 days before filing it with the court. During that window the attorney can withdraw or correct the offending filing and avoid sanctions entirely.1Legal Information Institute. Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions Skip the step or file early and the court will deny your motion no matter how frivolous the filing was.
Sanctions must be limited to what is necessary to deter the conduct. They can include nonmonetary directives, a penalty paid into court, or an order that the offending attorney pay your reasonable attorney’s fees and expenses caused by the violation.1Legal Information Institute. Rule 11 – Signing Pleadings, Motions, and Other Papers; Representations to the Court; Sanctions Most state courts have equivalent rules with similar procedures, though specifics vary.
28 U.S.C. § 1927
Federal courts have a second tool aimed squarely at attorneys. Under 28 U.S.C. § 1927, any attorney who unreasonably and vexatiously multiplies proceedings can be required to personally pay the excess costs, expenses, and attorney’s fees that resulted from that conduct.2Office of the Law Revision Counsel. 28 USC 1927 – Counsel’s Liability for Excessive Costs Rule 11 targets specific filings; § 1927 targets a pattern of conduct that drags the case out. The lawyer pays out of pocket, not the client.
Malicious Prosecution: The Main Standalone Claim
If you want to bring a new lawsuit against the attorney, malicious prosecution is the primary theory. To win, you have to prove four things:
- The attorney was actively involved in bringing or continuing the original lawsuit against you.
- That case ended in your favor by dismissal, summary judgment, or a verdict at trial.
- No reasonable attorney in the same position would have believed there were grounds to bring the case.
- The attorney acted primarily for a purpose other than winning on the merits, such as harassment, coercion, or causing financial harm.
Each element has to be proven, and the last two are where most claims fall apart.3Legal Information Institute. Malicious Prosecution A case can be weak, or even poorly researched, without lacking probable cause. Probable cause here means the attorney had a reasonable belief, based on the available facts, that the claim was valid under existing law or a reasonable extension of it. Courts give lawyers significant room. A case that loses, even badly, isn’t automatically one that lacked probable cause. You have to show the claim was so baseless that no competent attorney could have honestly believed it had a chance. Proving the lawyer’s hidden motive is just as hard, because the attorney can point to almost any plausible litigation objective and their file will usually document reasoning that supports it.
Favorable Termination and Why Settlements Kill the Claim
You can’t even start a malicious prosecution lawsuit until the original case is completely over and resolved in your favor. This is an absolute prerequisite. It prevents malicious prosecution from being used as a live counterclaim tactic, and it limits the doctrine to people who were actually vindicated.
Favorable termination means you won. A judge’s dismissal, summary judgment for you, or a defense verdict at trial all count. A settlement generally does not, even if the terms favored you, because no court made a finding that the claims lacked merit. Many potential claims die right here. If you settled the original case just to end it, you probably can’t turn around and sue for malicious prosecution even if the case was groundless.
The Litigation Privilege Blocks Most Other Theories
The biggest structural obstacle to suing an attorney is the litigation privilege. It broadly protects lawyers from civil liability for statements and actions taken while representing a client in court, and it exists because the adversarial system depends on lawyers being able to advocate without being sued every time they file a motion the other side dislikes.
In many jurisdictions the privilege is absolute for communications connected to a legal proceeding. It blocks claims like defamation, intentional infliction of emotional distress, and interference with business relationships. Some courts extend it to abuse of process and even to malicious prosecution. The narrow exception is that the privilege doesn’t protect an attorney who pursues litigation for an unlawful purpose while knowing the client’s claim lacks merit. That opening is exactly where a malicious prosecution claim lives, which is why the path is so tight.
Abuse of Process as an Alternative
Abuse of process is a separate theory. Instead of attacking the decision to file the case at all, it targets the misuse of a specific legal tool for a purpose it wasn’t designed for. The classic example is a subpoena used not to gather evidence but to harass a witness or squeeze a settlement through intimidation.
The elements are generally that a legal process was used improperly, that the person using it had an ulterior motive, and that the misuse caused you harm.4Legal Information Institute. Abuse of Process One advantage over malicious prosecution is that the original lawsuit doesn’t have to have been baseless. Even a legitimate case can support an abuse of process claim if a specific procedure inside it was weaponized. You also may not need to wait for the original case to end, though in practice most people pursue it afterward.
Anti-SLAPP Motions Can Cost You
If you sue the attorney, expect a possible anti-SLAPP motion. Roughly 33 states have statutes designed to quickly dismiss lawsuits that target someone’s right to petition the government or speak on matters of public concern. Filing a lawsuit is itself a form of petitioning, so your suit against the attorney can be characterized as an attack on their client’s right to petition.
When the motion is filed, the burden shifts to you to show a likelihood of winning at an early stage. If you can’t, the court dismisses your case and typically orders you to pay the other side’s attorney’s fees and costs. Courts have applied these statutes in exactly this scenario, sometimes ordering tens of thousands of dollars in fees against the person who brought the malicious prosecution claim.
What You Can Recover if You Win
Clear every hurdle and the damages can be meaningful. Compensatory damages cover the actual losses the frivolous lawsuit caused you: the legal fees and court costs you spent defending the original case, lost income if the case interfered with your ability to work, and compensation for damage to your professional or personal reputation.
Emotional distress is also compensable. Being dragged through a baseless case takes a real psychological toll, and courts recognize that. Where the attorney’s conduct was especially egregious, a court may award punitive damages on top of compensatory damages. Punitive damages aren’t about reimbursing your losses; they punish outrageous conduct and warn other attorneys.
Timing and Cost
Statutes of limitations for malicious prosecution are generally short, often one to two years from the date the original case ended in your favor. Miss the window and the claim is gone regardless of merit. Filing fees for a new civil lawsuit vary by jurisdiction but typically range from around $55 to $500, and you’ll need to budget for your own attorney’s fees to prosecute the new case.
For most people the sanctions route is the better play. It doesn’t require proving malice, it uses the judge who already has context, and it can recover your fees without years of separate litigation. A standalone suit against the attorney makes the most sense when the frivolous case caused significant, documentable financial harm well beyond legal fees, or when the conduct was extreme enough to justify the investment.