Platinum-Montaur Life Sciences, LLC v. Navidea Biopharmaceuticals, Inc.

18-3535-cv
Platinum-Montaur Life Sciences, LLC v. Navidea Biopharmaceuticals, Inc.
1
United States Court of Appeals 2
for the Second Circuit 3
4
August Term, 2019 5
6
(Argued: September 5, 2019 Decided: November 25, 2019) 7
8
Docket No. 18-3535-cv 9
10
_____________________________________ 11
12
PLATINUM-MONTAUR LIFE SCIENCES, LLC, 13
14
Plaintiff-Appellant, 15
16
v. 17
18
NAVIDEA BIOPHARMACEUTICALS, INC., 19
20
Defendant-Third-Party-Plaintiff-Appellee, 21
22
v. 23
24
PLATINUM PARTNERS CREDIT OPPORTUNITIES MASTER FUND, LP, 25
26
Third-Party-Defendant. 27
28
_____________________________________ 29
Before: 30
31 K ATZMANN, Chief Judge, WALKER AND PARK, Circuit Judges. 32
33
Plaintiff Platinum-Montaur Life Sciences, LLC (“Platinum-Montaur”), 34
appeals a decision of the United States District Court for the Southern District of 35
New York (Caproni, J.) granting the motion to dismiss of defendant Navidea 36

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2
Biopharmaceuticals, Inc., on grounds that Platinum-Montaur lacked Article III 1
standing. Because the district court did not first determine whether there was 2
complete diversity of citizenship between the parties, it is unclear whether it had 3
subject-matter jurisdiction under 28 U.S.C. § 1332. We thus VACATE and 4
REMAND for further proceedings consistent with this opinion. 5
6
R OBERT J. B URNS (Warren E. Gluck, Barbara 7
P. Parlin, and Kathryn B. Daly on the brief), 8
Holland & Knight LLP, New York, New 9
York for Plaintiff-Appellant. 10
11
R OBERT C. F OLLAND, Barnes & Thornburg, 12
LLP, Columbus, Ohio for Defendant- 13
Appellee. 14
15
Park, Circuit Judge: 16
Platinum-Montaur Life Sciences, LLC (“Platinum-Montaur”) sued 17
Navidea Biopharmaceuticals, Inc. (“Navidea”) in state court over a contract 18
dispute. Navidea removed the case to the United States District Court for the 19
Southern District of New York (Caproni, J.). Navidea asserted that the district 20
court had diversity jurisdiction under 28 U.S.C. § 1332 but it did not identify 21
Platinum-Montaur’s citizenship. The parties conducted limited informal 22
jurisdictional discovery but failed to determine Platinum-Montaur’s citizenship. 23
Instead of ordering further jurisdictional discovery, the district court assumed 24
that it had subject-matter jurisdiction, stating that it could proceed because it had 25
no “good faith basis to believe that there is not complete diversity.” 26

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3
We hold that the district court erred by failing to determine whether it had 1
diversity jurisdiction before deciding Navidea’s motion to dismiss. Accordingly, 2
we VACATE and REMAND for further proceedings consistent with this 3
opinion. 4
BACKGROUND 5
In 2017, Platinum-Montaur sued Navidea in New York state court to 6
collect on a debt. Navidea then filed a notice of removal in the United States 7
District Court for the Southern District of New York. Navidea claimed that the 8
federal court had “diversity jurisdiction under 28 U.S.C. § 1332(a).” 9
Section 1332(a) gives federal courts jurisdiction to hear controversies 10
“between . . . citizens of different States.” Navidea stated that it was “a Delaware 11
corporation, with a principal place of business in Ohio,” making it a citizen of 12
Delaware and Ohio. 28 U.S.C. § 1332(c)(1) (“[A] corporation shall be deemed to 13
be a citizen of every State . . . by which it has been incorporated and of the 14
State . . . where it has its principal place of business.”). 15
But Navidea’s notice of removal did not fully specify Platinum-Montaur’s 16
citizenship. Platinum-Montaur is a limited liability company (“LLC”), which 17
takes the citizenship of all of its members. See Bayerische Landesbank, New York 18

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Branch v. Aladdin Capital Mgmt. LLC, 692 F.3d 42, 49 (2d Cir. 2012). Navidea 1
stated that Platinum-Montaur was an LLC with three members—two individual 2
residents of New Jersey and Platinum Partners Value Arbitrage Fund, L.P. 3
(“PPVA”), a Cayman Islands Limited Partnership (“LP”). For the purposes of 4
diversity jurisdiction, a partnership takes the citizenship of all of its partners. See 5
Carden v. Arkoma Assocs., 494 U.S. 185, 195–96 (1990). Therefore, Platinum- 6
Montaur is a citizen of every state of which PPVA’s partners are citizens. 7
Navidea did not identify these partners in its notice of removal, leaving 8
Platinum-Montaur’s citizenship uncertain. 9
Because it was unclear whether the parties before it were diverse, the 10
district court ordered “informal jurisdictional discovery in order to determine the 11
citizenship of [PPVA].” After looking into its own citizenship, Platinum- 12
Montaur determined that one of PPVA’s partners was Platinum Partners Value 13
Arbitrage Funds (USA) L.P. (“PPVA Onshore”), a “feeder fund intended for U.S. 14
investors” with around 220 limited partners and which took the citizenship of 15
each partner. Carden, 494 U.S. at 195–96. Platinum-Montaur stated that it had 16
tried but failed to determine whether any of PPVA Onshore’s partners was a 17

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citizen of either Delaware or Ohio, which would destroy diversity of citizenship 1
between Platinum-Montaur and Navidea.1 2
At a status conference, Platinum-Montaur told the court that it was 3
“seeing . . . hundreds of feeder funds, multiple LLCs, [and] unincorporated 4
entities,” in its ownership structure. After contacting some of PPVA Onshore’s 5
partners in an effort to identify their citizenship, Platinum-Montaur decided to 6
stop and wait on the district court’s direction because it was “unclear” to them 7
“when you are just one cog in the chain of the uphill ownership structure how 8
that affects diversity jurisdiction.” 9
The district court asked Platinum-Montaur whether it planned to move for 10
a remand to state court, and Platinum-Montaur responded that it was “really 11
trying to follow the Court’s directives” on this issue. The court decided to 12
conclude its jurisdictional inquiry and stated, “I’m not inclined to order [further 13
jurisdictional discovery]. At this point I don’t have a good faith basis to believe 14
that there is not complete diversity.” 15
1 PPVA’s two other partners were an offshore feeder fund and a Delaware LLC that served as
PPVA’s general partner. Platinum-Montaur would have to identify the citizenship of these two entities
as well as PPVA Onshore to determine its own citizenship.

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Having assumed subject-matter jurisdiction, the district court later granted 1
Navidea’s motion to dismiss, finding that as a matter of contract law, Platinum- 2
Montaur had assigned away all of its rights to Navidea’s debts and therefore 3
lacked standing to sue. Platinum-Montaur appealed that ruling, and both parties 4
briefed the issue of standing but not subject-matter jurisdiction. 5
S TANDARD OF R EVIEW 6
This court may “sua sponte delve into the issue of whether there is a factual 7
basis to support” subject-matter jurisdiction. Velez v. Sanchez, 693 F.3d 308, 314 8
(2d Cir. 2012) (cleaned up). We consider “questions of subject matter jurisdiction 9
de novo” and are “not limited in our right to refer to any material in the record.” 10
Id. (citations omitted).2 11
2 If we were to agree with the district court’s conclusion that Platinum-Montaur lacked Article III
standing to bring this suit, then we would face two threshold jurisdictional questions—Article III
standing and statutory diversity jurisdiction. In that event, we would have “inherent flexibility” to
choose between them as grounds for dismissal. Disability Rights New York v. New York, 916 F.3d 129, 131
n.1 (2d Cir. 2019). We need not make such a choice in this case because the district court’s holding—that
Platinum-Montaur had no legal right to collect on Navidea’s debt because it had assigned away its rights
to that debt—is best understood as a merits ruling, not a jurisdictional, Article III standing decision. “As
a matter of the English language, the word ‘standing’ can be used to describe [the] contention [that a
plaintiff lacks the legal right to sue under a contract], but ‘standing’ in this context is entirely distinct
from ‘standing’ for purposes of Article III.” Novartis Seeds, Inc. v. Monsanto Co., 190 F.3d 868, 871 (8th Cir.
1999). Platinum-Montaur plausibly alleged that it retained a right to the unassigned portion of Navidea’s
debt, that Navidea “failed to pay [it] the amounts owing” under the debt agreement, and sought damages
for that alleged breach. That was enough to allege “an injury in fact . . . that is likely to be redressed by a
favorable judicial decision,” and therefore enough to allege Article III standing. Spokeo, Inc. v. Robins, 136
S. Ct. 1540, 1547 (2016). The district court’s decision is better understood as a ruling on the merits. See
Perry v. Thomas, 482 U.S. 483, 492 (1980) (rejecting the “contention that resolving” whether a party could

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DISCUSSION 1
“‘It is a fundamental precept that federal courts are courts of limited 2
jurisdiction’ and lack the power to disregard such limits as have been imposed 3
by the Constitution or Congress.” Durant, Nichols, Houston, Hodgson & Cortese- 4
Costa P.C. v. Dupont, 565 F.3d 56, 62 (2d Cir. 2009) (quoting Owens Equipment & 5
Erection Co. v. Kroger, 437 U.S. 365, 374 (1978)). Perhaps the most important limit 6
is subject-matter jurisdiction, which defines “a court’s competence to adjudicate a 7
particular category of cases.” Wachovia Bank v. Schmidt, 546 U.S. 303, 305 (2006). 8
“[B]ecause it involves a court’s power to hear a case,” subject-matter jurisdiction 9
cannot be forfeited, waived, or conferred by consent of the parties. See United 10
States v. Cotton, 535 U.S. 625, 630 (2002); Cable Television Ass’n of New York v. 11
Finneran, 954 F.2d 91, 94 (2d Cir. 1992). “It is well-settled that the party asserting 12
federal jurisdiction bears the burden of establishing jurisdiction,” and it must 13
prove jurisdiction by a “preponderance of evidence.” Blockbuster, Inc. v. Galeno, 14
472 F.3d 53, 57 (2d Cir. 2006); Liranzo v. United States, 690 F.3d 78, 84 (2d Cir. 15
2012). 16
enforce an arbitration agreement was a question of Article III standing and instead characterizing the
question as “a straightforward issue of contract interpretation”). We express no view on the proper
interpretation of the contracts at issue in this case.

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This case involves diversity jurisdiction. Under 28 U.S.C. § 1332, federal 1
courts have jurisdiction to hear civil actions between “citizens of different States” 2
as long as “the matter in controversy exceeds . . . $75,000.” The Supreme Court 3
has interpreted “citizens of different States” to grant jurisdiction only “if 4
diversity of citizenship among the parties is complete, i.e., only if there is no 5
plaintiff and no defendant who are citizens of the same State.” Wis. Dep’t of Corr. 6
v. Schacht, 524 U.S. 381, 388 (1998). The issue presented in this case is how a 7
district court should proceed when a defendant seeks to remove an action from 8
state court on the basis of diversity jurisdiction, but the notice of removal and 9
underlying pleadings do not establish whether complete diversity exists between 10
the parties. 11
We have remanded or dismissed cases when a plaintiff has invoked the 12
original diversity jurisdiction of a federal district court but failed to include 13
adequate allegations of diversity in the complaint and the record does not allow 14
us to determine the citizenship of one of the parties. In Durant, Nichols, Houston, 15
Hodgson & Cortese-Costa P.C. v. Dupont, 565 F.3d 56 (2d Cir. 2009), the parties 16
disputed the citizenship of the defendant, and the court remanded “for 17
supplementation of the record with findings” regarding his citizenship. Id. at 65– 18

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66. In John Birch Society v. National Broadcasting Co., 377 F.2d 194 (2d Cir. 1967), 1
we dismissed a suit for lack of subject-matter jurisdiction when the plaintiff 2
failed to plead a defendant’s citizenship with apparent “intent[] to delay” after 3
receiving multiple opportunities to do so. Id. at 199; see also Van Buskirk v. United 4
Grp. of Companies, Inc., 935 F.3d 49, 55 (2d Cir. 2019) (noting that dismissal may be 5
appropriate “even absent an intent to delay” if “the party seeking to invoke 6
federal jurisdiction has been given an opportunity to amend their pleadings” but 7
“failed to do so”). 8
“In light of the congressional intent to restrict federal court jurisdiction, as 9
well as the importance of preserving the independence of state governments, 10
federal courts construe the removal statute narrowly, resolving any doubts 11
against removability.” Somlyo v. J. Lu-Rob Enters., Inc., 932 F.2d 1043, 1045–46 (2d 12
Cir. 1991), superseded by rule on other grounds as recognized by Contino v. United 13
States, 535 F.3d 124, 127 (2d Cir. 2008). As a result, “[w]e are not inclined to 14
countenance prolonged preliminary litigation over the removal issue simply 15
because [the defendant] failed in the first instance to aver a proper jurisdictional 16
basis for removal.” Lupo v. Human Affairs Intern., 28 F.3d 269, 274 (2d Cir. 1994). 17

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That being said, a district court has discretion to order jurisdictional 1
discovery in a removal case with improperly pleaded citizenship. For example, 2
in United Food & Commercial Workers Union, Local 919, AFL-CIO v. Centermark 3
Properties Meriden Square, Inc., 30 F.3d 298 (2d Cir. 1994), a union sued several 4
shopping centers in state court. When the defendants removed the case to 5
federal court, their notice of removal improperly asserted the union’s citizenship 6
because, in the context of that case, the union took “the citizenship of each of its 7
members,” and the notice of removal did not list the union’s members or their 8
citizenship. Id. at 302. We remanded for the district court to determine whether 9
it had jurisdiction because “we [were] not free to speculate on the citizenship” of 10
the union’s members “in the complete absence of any evidence.” Id. at 302–03. 11
In this case, Platinum-Montaur filed suit in state court and Navidea sought 12
to remove the action to federal court pursuant to 28 U.S.C. § 1441. As the party 13
invoking federal jurisdiction, it was Navidea’s burden to establish the existence 14
of diversity jurisdiction. United Food, 30 F.3d at 301. But as we have noted, 15

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Navidea’s notice of removal and the underlying state-court record failed to 1
establish whether the parties to this action were completely diverse.3 2
A district court may not assume subject-matter jurisdiction when the 3
record does not contain the necessary prerequisites for its existence. Here, the 4
district court erred by exercising diversity jurisdiction on the basis that it did not 5
have a “good faith basis to believe” that the parties before it were not completely 6
diverse. 7
After the parties began conducting informal jurisdictional discovery, they 8
realized that it would be difficult to ascertain Platinum-Montaur’s citizenship 9
because of the company’s complex ownership structure.4 Platinum-Montaur 10
acknowledged, however, that further discovery would likely allow it to identify 11
the citizenship of the partners of PPVA Onshore and the other entities that made 12
up PPVA, and therefore, to determine its own citizenship. 13
At this stage, the district court had two options. First, it could have 14
remanded the case to state court because Navidea had failed to allege complete 15
3 We note, however, that because Navidea was a citizen of Delaware, there would be no diversity
if any one of PPVA Onshore’s 220 partners were also a citizen of Delaware. It seems unlikely that none of
these 220 American corporate entities was a citizen of Delaware, but “we are not free to speculate” on
Platinum-Montaur’s citizenship without further evidence. United Food, 30 F.3d at 302.
4 Although Platinum-Montaur told the district court it was willing to consent to federal
jurisdiction, “parties may not confer subject matter jurisdiction on the court by consent.” Cable Television,
954 F.2d at 94.

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diversity of citizenship or to establish diversity through discovery. See 28 U.S.C. 1
§ 1447(c). Second, the district court could have exercised its discretion to order 2
further discovery to determine whether there was complete diversity of 3
citizenship. See United Food, 30 F.3d at 302–03. We note, however, that such 4
discretion should be exercised with caution. See Lupo, 28 F.3d at 274 (“Removal 5
procedures seek a rapid determination of the proper forum for adjudicating an 6
action.”). 7
Here, none of the underlying state-court pleadings, the notice of removal, 8
or the record as a whole reflected that the parties were completely diverse. Thus, 9
the district court erred by proceeding to the merits of this case. We therefore 10
remand so that the district court can exercise its discretion to conduct further 11
proceedings, if any, as it deems appropriate. 12
It bears noting that scrupulous enforcement of these jurisdictional rules 13
may make it more difficult for many business entities to sue or to be sued in 14
federal court under diversity jurisdiction. “LLCs have become the dominant 15
vehicle for doing business in the United States,” and LLCs with many members 16
may share the citizenship of their adversaries in litigation, meaning that they 17
cannot proceed in federal court under Section 1332. Lincoln Benefit Life, 800 F.3d 18

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at 112 (Ambro, J., concurring) (citation omitted). Nonetheless, even when the 1
citizenship of an LLC or LP is in question, a district court may not proceed to the 2
merits without first determining whether it has subject-matter jurisdiction. 3
C ONCLUSION 4
For the foregoing reasons, the judgment of the district court is VACATED 5
and REMANDED for further proceedings consistent with this opinion. 6

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