PHILIP A. BRIMMER, District Judge.
The Court takes up this matter sua sponte on the Notice of Removal [Docket No. 1] filed by Kiyanna Mills and MOD Digital, LLC (the "removing defendants"). Removing defendants state that the Court has subject matter jurisdiction over this lawsuit pursuant to 28 U.S.C. § 1332. Docket No. 1 at 2, ¶ 10.
In every case and at every stage of the proceeding, a federal court must satisfy itself as to its own jurisdiction, even if doing so requires sua sponte action. Citizens Concerned for Separation of Church & State v. City & Cty. of Denver, 628 F.2d 1289, 1297 (10th Cir. 1980). Absent an assurance that jurisdiction exists, a court may not proceed in a case. See Cunningham v. BHP Petroleum Great Britain PLC, 427 F.3d 1238, 1245 (10th Cir. 2005). Courts are well-advised to raise the issue of jurisdiction on their own, regardless of parties' apparent acquiescence. First, it is the Court's duty to do so. Tuck v. United Servs. Auto. Ass'n, 859 F.2d 842, 844 (10th Cir. 1988). Second, regarding subject matter jurisdiction, "the consent of the parties is irrelevant, principles of estoppel do not apply, and a party does not waive the requirement by failing to challenge jurisdiction." Ins. Corp. of Ireland v. Compagnie des Bauxites de Guinee, 456 U.S. 694, 702 (1982) (internal citations omitted). Finally, delay in addressing the issue only compounds the problem if it turns out that, despite much time and expense having been dedicated to a case, a lack of jurisdiction causes it to be dismissed or remanded regardless of the stage it has reached. See U.S. Fire Ins. Co. v. Pinkard Constr. Co., No. 09-cv-00491-PAB-MJW, 2009 WL 2338116, at *3 (D. Colo. July 28, 2009).
It is well established that "[t]he party invoking federal jurisdiction bears the burden of establishing such jurisdiction as a threshold matter." Radil v. Sanborn W. Camps, Inc., 384 F.3d 1220, 1224 (10th Cir. 2004). Removing defendants invoke 28 U.S.C. § 1332 as the basis for this Court's diversity jurisdiction. Docket No. 1 at 2, ¶ 10. Section 1332(a)(1) states: "The district courts shall have original jurisdiction of all civil actions where the matter in controversy exceeds the sum or value of $75,000, exclusive of interest and costs, and is between [] citizens of different States." The facts as presently averred, however, do not provide sufficient information regarding the citizenship of Standard Retail, LLC, MOD Digital, LLC, and Digital Exits, LLC (collectively, "the LLC parties").
The notice of removal identifies the LLC parties' states of organization and principal places of business. Docket No. 1 at 2, ¶¶ 8, 9.
Furthermore, when an entity consists of multiple tiers of ownership and control, the entire structure must be considered for diversity purposes. In other words, when an entity is composed of multiple layers of constituent entities, the citizenship determination requires an exploration of the citizenship of the constituent entities as far down as necessary to unravel fully the citizenship of the entity before the court. See U.S. Advisor, LLC v. Berkshire Prop. Advisors, No. 09-cv-00697-PAB-CBS, 2009 WL 2055206, at *2 (D. Colo. July 10, 2009); SREI-Miami, LLC v. Thomas, No. 08-cv-00730-MSK-BNB, 2008 WL 1944322, at *1 (D. Colo. May 2, 2008); see also Hicklin Eng'g, L.C. v. Bartell, 439 F.3d 346, 347 (7th Cir. 2006); Turner Bros. Crane & Rigging, LLC v. Kingboard Chem. Holding Ltd., 2007 WL 2848154, at *4-5 (M.D. La. Sept. 24, 2007); cf. Carden, 494 U.S. at 195 ("[W]e reject the contention that to determine, for diversity purposes, the citizenship of an artificial entity, the court may consult the citizenship of less than all of the entity's members.").
Removing defendants have not identified the members and the citizenship of the LLC parties. See Docket No. 1.