Beginning in the 1980s, Sprint purchased from some 40 different railroads operating in every state of the continental United States the right to install fiber-optic cables on the railroads’ rights of way. A suit has been filed in the district court on behalf of owners of the land adjacent to these rights of way, claiming that the right belongs to them, not to the railroads, and seeking damages for the alleged conversion. Class certification was sought under Fed.R.Civ.P. 23(b)(3). The district court *681 certified two plaintiff classes, one consisting of owners of land adjacent to rights of way obtained by condemnation, the other of owners of land adjacent to rights of way obtained by grants of public land to the railroads. Sprint appeals from the order of certification under Fed.R.Civ.P. 23(f), which grants the courts of appeals discretion to review orders granting or denying class certification.
The rule did not become effective until the last month of 1998, and the courts have not yet coalesced on an exhaustive list of grounds for the exercise of this discretion. For a recent discussion, see
Lienhart v. Dryvit Systems, Inc.,
What this means is that if the first two rulings go in favor of Sprint, no members of the class, other than the named plaintiffs, will fail to opt out of the suit, and the result will be that only the named plaintiffs will be bound by the judgment. If, however, the judge proceeds to stage 3, few if any class members will opt out and Sprint will be exposed to enormous potential liabilities. So even if Sprint prevails at stages 1 or 2, it will have to face the class members in other cases, while if the judge rules against it at those stages its prospects will darken greatly as a result of the combined effects of the two rulings — portents of likely future judgments against Sprint — plus the effect of those rulings in encouraging members of the class not to opt out of the suit. Were it not for this “one-way intervention” authorized by the challenged order, Sprint would face a smaller potential liability because members of the class would have a greater incentive to opt out of the suit. If the order of certification stands, the pressure on Sprint to settle will be enormous.
We conclude that this is an appropriate case in which to accept a Rule 23(f) appeal and we proceed to the merits because they have been fully briefed in connection with Sprint’s petition for permission to appeal and the plaintiffs’ opposition to it.
The certification order must be reversed, and not only because one-way intervention is forbidden. Fed.R.Civ.P. 23(c)(2);
Amati v. City of Woodstock,
176
*682
F.3d 952, 957 (7th Cir.1999);
Schwarzschild v. Tse,
The plaintiffs suggest that since Rule 23(c)(1) permits conditional grants of class status, the judge’s order should be viewed as properly conditioned on the plaintiffs’ eventually establishing that the prerequisites for class status have been met. But the prerequisites cannot be bypassed in this way.
General Telephone Co. v. Falcon, supra,
In like vein the plaintiffs argue that the appeal is premature because the district judge has made clear that his order certifying the class was tentative and is subject to revision. Emphasis on tentativeness and reusability is misplaced in the present context. Most interlocutory orders are subject to reconsideration as a case proceeds; that fact cannot defeat an appeal from such an order when interlocutory appeals are authorized. Finality is by definition not a property of an interlocutory order, and in fact the Supreme Court has described a certification order as “inherently tentative.”
Id.
at 160,
A final point: Our decision of this appeal was delayed by the district judge’s failure to make an adequate inquiry into the existence of federal jurisdiction over the plaintiffs’ suit. The only jurisdictional basis alleged in the complaint is diversity of citizenship, and it requires that each of the named plaintiffs separately have a stake in the case that exceeds $75,000. With Sprint contending that the individual claims are “relatively small,” the plaintiffs only that they are “substantial” but not large enough to justify a separate suit by *683 any of the plaintiffs, and the value of the subeasements that the plaintiffs claim to have lost not obviously great, the allegation that the requirements of diversity jurisdiction are satisfied could not be taken at face value. The parties had also failed to specify the citizenship of a trust that was a defendant and of the partners in a limited partnership that was another defendant. The fact that an appeal is interlocutory does not excuse the absence of adequate jurisdictional statements, for unless a case is within the jurisdiction of the district court, we cannot decide the merits of an appeal; we can only direct that the suit be dismissed. So we ordered the filing of supplemental briefs on jurisdiction. The briefs repair the deficiencies of the original filings well enough to prevent us from concluding at this stage that the district court lacked jurisdiction. But the size of the stakes remains sufficiently murky to bear further inquiry by the district-court, should the plaintiffs decide to press on with their case.
Circuit Rule 36 shall apply on remand.
Reversed.
