Joinder + Remand = Nonreviewable

In Porter v. Times Group, the plaintiff sued People Magazine and two journalists for defamation. The case was removed, and then remanded – one of the individual defendants died and the district court allowed joinder of the Louisiana citizen appointed as that defendant’s “succession representative” under Louisiana law, which destroyed diversity. The Fifth Circuit would not ordinarily have jurisdiction over a remand order because of 28 USC § 1447(d) (“An order remanding a case to the State court from which it was removed is not reviewable on appeal or otherwise . . . .”) People Magazine argued that the joinder decision was reviewable as a collateral order, and the Fifth Circuit disagreed, finding that it did not establish the third and fourth requirements for appeal of such an order (that the order be “effectively unreviewable on an appeal from final judgment” and “too important to be denied review”).