Id. at 603;
see also Yoffe v. Keller Industries, Inc., 580 F.2d 126, 129-31 (5th Cir.1978)
(Yoffe), cert. denied, 440 U.S. 915, 99 S.Ct. 1231, 59 L.Ed.2d 464 (1979).
The Seventh Circuit is most expansive in its view of appellate jurisdiction over voluntary conditional dismissals. In Cauley v. Wilson, 754 F.2d 769, 770-71 (7th Cir.1985), the Seventh Circuit held that it had jurisdiction of voluntary dismissals conditioned on payment of fees, “at least in cases in which a plaintiff requests a dismissal in order to proceed in state court.” Id. at 771; see also id. at 770-71 (suggesting, arguably erroneously, that the District of Columbia Circuit has held that it has jurisdiction over appeals of voluntary dismissals conditioned on payment of fees).
We spoke on the issue in Coursen v. A.H. Robins Co., 764 F.2d 1329 (9th Cir.) (Coursen), corrected, 773 F.2d 1049 (9th Cir.1985), where we held that a dismissal with prejudice was appealable, whether voluntary or involuntary. 764 F.2d at 1342-43, corrected, 773 F.2d at 1049. In the course of so holding, we stated, “A plaintiff may appeal a voluntary dismissal which imposes a condition that creates sufficient prejudice in a legal sense.” 764 F.2d at 1342. We cited LeCompte as authority for this proposition, and also cited, with a see also signal, a case involving involuntary dismissal, Gardiner v. A.H. Robins Co., 747 F.2d 1180, 1186-87 (8th Cir.1984). Coursen, 764 F.2d at 1342-43.
Accepting the statement in Coursen that a plaintiff may appeal a conditional voluntary dismissal that imposes sufficient legal prejudice, we must determine whether the condition of costs and attorneys’ fees imposed on the rule 41(a)(2) order in this case renders the order appealable. We find it especially significant that our statement in Coursen is supported by a citation to the Fifth Circuit’s opinion in LeCompte, rather than to its more recent opinion in Yoffe. LeCompte differs from Yoffe in at least one important respect: whereas LeCompte holds that a “usual” rule 41(a)(2) condition, such as “payment of costs and attorney’s fees,” does not involve legal prejudice, 528 F.2d at 603, Yoffe indicates that a condition imposing a “clearly unreasonable” amount of costs and fees may amount to appealable legal prejudice. 580 F.2d at 131. Thus, consistent with Coursen and LeCompte, we hold that a condition of costs and attorney’s fees does not involve legal prejudice and therefore does not render a conditional voluntary dismissal adverse and appeal-able. In so holding, we in no way intend to suggest that we find the amount of costs and fees in this case clearly unreasonable. Nor do we foreclose the possibility that review of clearly unreasonable conditions could be obtained through a writ of mandamus.
Because the condition of costs and attorneys’ fees that plaintiffs and counsel challenge does not involve legal prejudice, it is not adverse, and we have no jurisdiction over this appeal. We therefore dismiss the appeal of the rule 41(a)(2) order.
Ill
Alioto challenges on several grounds the district court’s imposition of rule 11 sanctions against him. The jurisdictional defect that precludes our review of the district court’s rule 41(a)(2) order does not apply to Alioto’s rule 11 appeal, since the court’s imposition of sanctions is plainly adverse to him. An order imposing sanctions solely upon counsel, a non-party to the underlying action, is immediately appealable as a final order. Optyl Eyewear Fashion International Corp. v. Style Companies, Ltd., 760 F.2d 1045, 1047 n. 1 (9th Cir.1985); Kordich v. Marine Clerks Association, 715 F.2d 1392, 1393 (9th Cir. 1983).
Rule 11, as amended in 1983, states in part:
Every pleading, motion, and other paper of a party represented by an attorney shall be signed by at least one attorney of record in his individual name____ The signature of an attorney ... constitutes a certificate by him that he has read the pleading, motion, or other paper; that to the best of his knowledge, information, and belief formed after reason