What is Res Judicata? The “One Bite at the Apple” Rule
In Louisiana, res judicata is a powerful defense. It essentially means that once a case has reached a final judgment, you cannot bring that same claim against that same party again. The goal is to protect defendants from being harassed and to keep the courts from wasting time on “ghost” cases. If an attorney fails to check the case history before filing, they risk a total dismissal.
If your previous attorney failed to identify that your case was barred by res judicata, you may be facing a Legal Malpractice issue.
The Cost of Frivolous Litigation: $10,000 Sanctions
In Mendonca v. Tidewater, Inc., the plaintiff sought to nullify several final judgments made by the district court. Mendonca’s list of suits stretched over four years, with multiple appeals and pleas for annulment. However, none of Mendonca’s nullity claims or his appeals were successful. In his final appeal for anulment, the Fourth Circuit Court of Appeals handed down three restrictions that laid Mendonca’s long line of cases to rest.
The first of these restrictions was the court’s upholding of the defendent’s plea of res judicata and failure to state a claim. When res judicata is enacted, the court declares one of two denials. First, that the claim has been subject to a final judgment and thus no longer qualifies for an appeal, or second, that the litigant cannot bring a claim against the same party in a second claim because all claims should have been brought against that party in the initial suit. The policy considerations supporting res judicata is to preserve court resources and protect defendants from being subject to litigation multiple times, with the possibility of having to pay damages more than once. A defendant’s plea that a plaintiff has failed to state a claim goes hand-in-hand with res judicata. If res judicata is applicable, then all duplicitous claims cancelled. In Mendonca’s case, this means that there were no new claims. Since there were no such claims, the court held that Mendonca’s nu
llity actions were a failure to state a new claim.
A second deterrent to brining frivolous, harassing, or duplicitous suits is the possibility of monetary sanctions. Rules of civil procedure require that an attorney make objective inquiries into the facts of a case and the law that pertains to it. These inquiries are held to a high standard as they are seen as an attorney’s duty. This means that one’s subjective good faith inquiry is not sufficient. When an attorney files a claim, it is important that case history is analyzed to ensure that res judicata does not apply. A failure to inquire about previous claims is a failure to impose the applicable law and is essentially poor lawyering. This was the case in Mendonca’s appeal. Any attorney who objectively analyzed the situation would have known that the claim was precluded through res judicata. Yet, Mendonca proceeded. The court interpreted this as an abuse of the judicial system and an attempt to harass the defendant. This abuse justifies the imposition of sanctions.
Sanctions are typically defined as an order to pay to the other party the amount of reasonable expenses through the employment of an attorney. Yet, “reasonable” is not confined to the actual expense accrued by the attorney. Instead, “reasonable” has been interpreted to mean additional costs that act to deter, punish, and compensate. When sanctions are imposed by a trial judge they are unlikely to be appealed. Appellate judges tend to give deference to the trial judge’s intimate knowledge of the case, litigants, and attorneys. For these reasons, Mendonca was sanctioned in the amount of $10,000, all of which were upheld on appeal.
In Forma Pauperis: A Privilege, Not a Right
Many litigants represent themselves or file as “indigent” to waive court costs. This is called in forma pauperis status. However, as this case proves, that status is a privilege. If you abuse the system by filing harassing or frivolous suits, the court can—and will—revoke your status and force you to pay every penny of the associated costs.
A third way that a court can punish an individual as a deterrent is to issue a sanction revoking in forma pauperis status. In forma pauperis is a legal termed used by a judge to allow a poor individual to file a legal case and/or represent oneself at trial. Allowing one to claim this status is to essentially cut most court associated costs for the needy individual in order to ensure due process. Mendonca qualified and was granted this status. However, courts have held that in forma pauperis status is a privilege, not a right. Therefore, any abuse of this status will result in revocation. The most common reason why in forma pauperis status is revoked is because one brings frivolous suits. Mendonca did this in his case and was punished accordingly.
“Navigating the rules of civil procedure—like res judicata and failure to state a claim—requires more than just a passing knowledge of the law. It requires a ‘research hawk’ who investigates every angle before a single paper is filed. At the Berniard Law Firm, we pride ourselves on protecting our clients from the procedural traps that lead to sanctions and dismissals. Whether you are facing a Business Dispute or a Complex Injury Claim, ensure your team has the expertise to get it right the first time. Contact our New Orleans litigation team today.”
UPDATE February 2026: Following recent landmark verdicts and the federal approval of MDL 3171, the Berniard Law Firm is now providing nationwide representation for Uber and Lyft sexual assault survivors. If you were harmed during a rideshare trip, click here to learn about your rights under the new 2026 legal standards.