In English v. Thorpe, the Colorado Court of Appeals addressed, for the first time, whether C.R.C.P. 15(a) or C.R.C.P. 41(a) governs when a party seeks to amend a pleading to dismiss some, but not all, claims. The dispute arose after the estate of Joseph English sued Shirley Thorpe for unjust enrichment and conversion related to property they jointly occupied. Thorpe initially asserted counterclaims alleging the existence of a partnership but later sought to amend her pleadings to withdraw those claims. The district court denied her motion, applying Rule 41 and finding that dismissal would prejudice the estate.
The Court of Appeals reversed, holding that Rule 15(a)—not Rule 41—controls when a party seeks to drop fewer than all claims against an opposing party. The court reasoned that Rule 41 applies only to dismissal of an entire “action,” whereas Rule 15 governs amendments to pleadings, including partial claim withdrawals. Applying Rule 15’s liberal standard, which instructs courts to freely grant leave to amend when justice so requires, the division concluded that the district court abused its discretion. It found that any potential prejudice to the estate—such as additional discovery or delay—could have been mitigated through case management tools rather than outright denial.
The court further held that the district court erred in treating Thorpe’s withdrawn counterclaims as binding judicial admissions establishing the existence of a partnership. Instead, it clarified that once a pleading is amended, prior allegations lose their status as judicial admissions and become merely evidentiary admissions that may be considered—but are not conclusive. Without the binding effect of Thorpe’s prior allegations, the remaining evidence was insufficient to establish a partnership, particularly because there was no indication that the parties operated a business for profit, a required element under Colorado law.
Finally, the division concluded that the district court’s unjust enrichment award was also flawed because it depended on the erroneous finding of a partnership. Without that foundation, the record did not adequately support the damages award. Accordingly, the Court of Appeals reversed the judgment and remanded the case for a new trial, directing the district court to permit Thorpe to amend her pleadings and allowing further proceedings consistent with its opinion. Read the entire opinion here.