ORDER

This cause is before the Court on the following:

1. Defendants’ Consolidated Motion to Dismiss the Complaint (Doc. 59), filed. March 27, 2015; and

2. Plaintiffs’ Response to - Consolidated Motion to Dismiss (Doc. 60), filed April 13, 2015,

*1247This action is part of a multi-court dispute over the administration of the Gina J. Paulucci Trust (“Trust”). (See Doc. 2, ¶ 1.) Plaintiffs are Cynthia Selton and Michael Paulucci, who are siblings of Gina Paulucci and contingent remainder beneficiaries of the Trust. (See id. ¶¶8-9.) Defendants are: (1) Gina Paulucci, the current beneficiary of the Trust; (2) Howard J. Rubin, Richard Ihrig, and U.S. Bank Trust National Association, S.D. (“U.S.Bank”), the current trustees of the Trust (see id. ¶¶ 2-6); and (3) Lindquist & Vennum, PLLP, a law firm at which trustee Ihrig is a partner and which allegedly accepted payment from the Trust for services rendered to Gina Paulucci (see id. ¶¶ 10, 22).

To summarize the Complaint, Plaintiffs claim that Defendants surreptitiously changed the Trust’s situs designation from Florida to South Dakota so that the trustees could make distributions and payments that Florida law prohibits but South Dakota law permits. (See id. ¶¶ 18-22,26-28.) Further, Plaintiffs claim that Defendants took advantage of South Dakota’s trust-supervision statutes to obtain an uncontested, allegedly erroneous order from a South Dakota state court that approved of their conduct and confirmed the situs change. (See id. ¶¶ 23-25.) Maintaining that Defendants’ actions violated Florida’s trust-administration laws, Plaintiffs seek a declaration that the South Dakota state-court order is “void,” as well as other related relief. (See id. ¶¶ 29-57.)

Defendants move to dismiss this action under the Princess Lida doctrine, arguing that the South Dakota court maintains continuing and exclusive jurisdiction over quasi in. rem actions involving the Trust.1 (Doc. 59, p. 7 (citing Princess Lida of Thurn & Taxis v. Thompson, 305 U.S. 456, 465-67, 59 S.Ct. 275, 83 L.Ed. 285 (1939)).) Plaintiffs oppose. (Doc. 60.) The matter is ripe for adjudication. Upon consideration, the Court finds , that the motion is due to be granted in part and denied in part.

BACKGROUND

In 1996, frozen-food magnate Jeno F. Paulucci executed an irrevocable agreement (“Agreement”) which created separate trusts for each of his children. (See Doc. 2-2, pp. 2, 7-8, 22.) Under the terms of the Agreement, all of the children are contingent remainder beneficiaries of each other’s trusts, taking per stirpes if the primary beneficiary dies without “issue.” (Id. at 8.) Defendant Gina Paulucci’s Trust is a product of the Agreement, so Plaintiffs—her siblings—aré contingent remainder beneficiaries. (Doc. 2, ¶1¶ 1, 7-9.)

Pursuant to. the Agreement’s floating choice-of-law provision, the Trust is governed “under the laws of the state that is then the trust situs.” (See Doc. 2-2, p. 19.)' The provision further states:

If there is a change in trust situs, the laws of the state of any new trust situs shall apply as of the date of the change of situs, and all constructions, interpretations, limitations and restrictions imposed by the laws of any previous situs' shall be of no further effect.

(Id.) The Agreement grants trustees the discretionary authority to change the situs of the Trust to any jurisdiction that they deem “advisable.” (Id. at 17.) According to Plaintiffs, Florida was the Trust’s original situs, and thus Florida law originally governed. (See Doc. 2, ¶¶ 11-13, 20, 29, 31.)

The impetus for this action began in 2010, when trustee Defendants Ihrig and *1248Rubin took three important actions: (1) they appointed Defendant-U.S. Bank as a third co-trustee; (2) they transferred the assets of the Trust to U.S; Bank in South Dakota; and (3) they designated South Dakota as the Trust’s situs. (See id, ¶¶ 3, 20; Docs. 2-3, 59-1.) The trustee Defendants, including U.S. Bank, memorialized the actions in a document entitled “Appointment and Acceptance of Co-Trustee” (Docs. 2-3, 59-1), but they apparently did not provide a copy to Plaintiffs or otherwise notify them (Doc. 2, ¶ 20).

Three years passed without Plaintiffs noticing the changes. (See id. ¶¶ 21-22.) Then, for reasons unclear, Plaintiffs requested an accounting of the Trust in October 2013. (Id. ¶ 21.)

On January 2, 2014, the trustee Defendants provided the accounting, which revealed for the first time that they “had distributed hundreds of thousands of dollars to Gina” and had made “hundreds of' thousands of dollars in payments to attorneys for Gina, including payments to the firm of Lindquist & Vennum, where the co-trustee Ihrig is a partner.” (See id. ¶ 22.) Plaintiffs contend that the distributions and payments would not have been permitted under Florida law, as the distributions were improvident and the .payments were “conflict transactions.” (See id. ¶¶ 26-28.)

Also on January 2, 2014—the same day that they provided the Trust accounting— the trustee Defendants filed a “Petition for Court Supervision, Privacy of Court File, and Confirmation, of Situs and Law of Administration” (“Petition”) in a South Dakota state court. (See id. ¶ 23; Doc. 59-1.) The trustee Defendants filed the Petition pursuant to S.D. Codified Laws § 21-22-9, which permits any fiduciary or beneficiary of a trust with a South Dakota trustee or with assets in South Dakota to request court supervision of the trust. Additionally, if a § 21-22-9 petition includes a trust accounting, the petitioner can “request court action as to any matter relevant to the administration of the trust.” See id. (emphasis added). The trustee Defendants included an accounting in their Petition, and they requested that the South Dakota court “confirm that the situs of the Trust is in Minnehaha County, South Dakota, and that the laws of the State of South Dakota govern the administration of the Trust.” (Doc. 59-1, p. 1.)

The South Dakota court set a January 27, 2014 hearing on the Petition. (See Doc. 2, ¶ 23.) Plaintiffs received actual notice of the hearing but, after the trustee Defendants refused to agree to a hearing extension, Plaintiffs refused to appear because they felt that they had been given inadequate time to prepare. (See id. ¶¶ 23-24.)

On February 4, 2014, following an uncontested hearing, the South Dakota court entered an order in which it expressly assumed jurisdiction over the Trust and confirmed the Trust’s South Dakota situs and governing law.2 (Doc. 59-2, p.. 6.)

In response, Plaintiffs filed this action in Florida state court, claiming that Deféndants violated the notification, distribution, and payment provisions of Florida’s trust-administration laws. (See Doc. 2.) As relief, Plaintiffs seek: (1) a declaration that the South Dakota state-court order is “void,” the situs change was ineffective, and Florida law governs the Trust; (2) removal of the trustees; (3) voidance of all payments to Lindquist & Vennum; and (4) surcharges against the trustee Defendants *1249for damages related to their “malfeasance.” (See id. at 10, 14-15 (wherefore clauses).)

Defendants removed (Doc. 1) and now move to dismiss (Doc. 59).

DISCUSSION3

Defendants move to dismiss this action under the Princess Lida doctrine (id. at 6-16), which holds that when two in rem or quasi in rem actions involve the same property, “the court first assuming jurisdiction over property may maintain and exercise that jurisdiction to the exclusion of the other,” 305 U.S. at 466, 59 S.Ct. 275. According to Defendants, Princess Lida is a subject matter jurisdiction doctrine that requires dismissal here because both this action and the South Dakota action are proceeding quasi in rem, both involve the Trust, and the South Dakota court assumed jurisdiction first. (Doc. 59, pp. 6-16.)

Plaintiffs disagree. According to Plaintiffs, Princess Lida reflects principles of abstention—not subject-matter jurisdiction—that have been subsumed within the broader Colorado River doctrine, which presumes that courts should retain jurisdiction. (Doc. 60, pp. 2-4.) Alternatively, Plaintiffs maintain that, regardless of whether it concerns jurisdiction or abstention, Princess Lida does not require dismissal here because this action proceeds in personam, not quasi in rem. (Id. at 4-7.)

For context, in Princess Lida, the U.S. Supreme Court granted certiorari to disentangle parallel state and federal actions involving administration of the same trust. See 305 U.S. at 461, 59 S.Ct. 275. Each lower court had concluded that it had exclusive jurisdiction over matters affecting the trust res, and each had enjoined its litigants from proceeding in the other forum. See id. at 458-61, 59 S.Ct. 275. On review, the U.S. Supreme Court affirmed the state court’s injunction prohibiting litigation in the federal court, as both actions were quasi in rem and the state court had assumed jurisdiction over the trust first. Id. at 463-68, 59 S.Ct. 275.

Ambiguity in the Princess Lida opinion’s language has caused a federal circuit split on whether the doctrine expressed therein pertains to subject matter-jurisdiction or abstention.4 Several circuits treat it as a doctrine of subject-matter jurisdiction. See Cartwright v. Garner, 751 F.3d 752, 759-63 (6th Cir. 2014); Cassity v. Pitts, 995 F.2d 1009, 1012 (10th Cir. 1993); Dailey v. Nat’l Hockey League, 987 F.2d 172, 176 (3d Cir. 1993); cf. State Eng’r v. S. Fork Band of Te-Moak Tribe of W. Shoshone Indians, 339 F.3d 804, 810 (9th Cir. 2003) (holding that the “doctrine of prior exclusive jurisdiction” implicates subject-matter jurisdiction). Others treat it as a mandatory abstention doctrine. See Carvel v. Thomas & Agnes Carvel Found., 188 F.3d 83, 86 (2d Cir. 1999); Crawford v. Courtney, 451 F.2d 489, 492 (4th Cir. 1971). Only the U.S. Court of Appeals for the First Circuit treats Princess Lida as a factor in the Colorado River permissive abstention analysis. United States v. Fairway Capital Corp., 483 F.3d 34, 40 n. *12502 (1st Cir. 2007). The Eleventh. Circuit has not expressly weighed in, nor has its predecessor, the former Fifth Circuit.5

After a thorough review, the Court concludes that Princess Lida is an abstention doctrine.6 As the Second Circuit noted in Carvel, the Supreme Court in Princess Lida was “exploring the difference between in personam and in rem proceedings. Moreover, by invoking the importance of ‘harmonious cooperation’ between the federal and state' courts, the Court indicated that the doctrine it was expounding was a rule of comity or abstention, rather than one of subject matter jurisdiction.” 188 F.3d at 86.

However, contrary to Plaintiffs’ characterization, Princess Lida is mandatory and has not . been subsumed within the Colorado River doctrine. See id. (emphasizing that, while the Princess Lida rule is not a subject-matter-jurisdiction doctrine, but rather “a principle of comity, in the nature of an abstention doctrine, the Princess Lida rule is no less binding on federal courts”). Unlike the Colorado River Water Conservation Dist. v. U.S. doctrine, which permits (but counsels against)7 abstention based on principles of “wise judicial administration” and “conservation of judicial resources,” 424 U.S. 800, 817, 96 S.Ct. 1236, 47 L.Ed.2d 483 (1976) (citation and omitted), the Princess Lida doctrine requires abstention based on principles of comity and in rem jurisdiction. See, e.g., Citibank, NA v. Data Lease Fin. Corp., 645 F.2d 333, 338 (5th Cir. 1981) (characterizing the doctrine as a mandatory “matter of comity”); Key v. Wise, 629 F.2d 1049, 1059 (5th Cir. 1980) (observing that the ,Princess Lida doctrine has “especial importance in its application to Federal and state courts” and “establishes a bar to any other action in rem or quasi in rem respecting the same property until the first court’s jurisdiction is properly terminated” (citation omitted)); PPG Indus., Inc. v. Cont'l Oil Co., 478 F.2d 674, 677 (5th Cir. 1973) (noting that Princess Lida sets out a “virtually mechanical in rem rule”).8

Having concluded that the Princess Lida doctrine requires mandatory abstention where applicable, the Court turns to whether it applies here. The Princess Lida doctrine applies where, two actions involving the same property are proceeding in rem or quasi in rem. See Princess Lida, 305 U.S. at 466, 59 S.Ct. 275. Here, the parties tacitly agree that both actions involve the same property and that the South Dakota action proceeds quasi in *1251rem; however, they dispute whether this action proceeds quasi in rem as well.9

Under Princess Lida, courts look to the plaintiffs’ requested relief to determine whether an action proceeds quasi in rem; if the presiding court must have a substantial measure of “control of the property which is the subject of the litigation in order to proceed with the cause and grant the relief sought,” then the action is quasi in rem. Id. Actions requiring “a substantial measure of control” include not only “cases where property has been actually seized under judicial process,” but also cases “brought to marshal assets, administer trusts ... liquidate estates, and ... suits of a similar nature.” Id. at 466-67, 59 S.Ct. 275. Courts also consider how state law characterizes a particular cause of action, see, e.g., Cassity, 995 F.2d at 1012 (considering Oklahoma law), although state-law labels and characterizations are not controlling, see Dailey, 987 F.2d at 177 (emphasizing that the term quasi in rem has a specialized meaning in the Princess Lida context).

In all four of their claims in this action, Plaintiffs request relief that-would affect the administration of the Trust and the restoration of its corpus: Count I seeks a declaration that, inter alia, the Trust “continues to be governed by and administered in accordance with the State of Florida,” Count II seeks removal of the trustees, and Counts III and IV seek recovery of allegedly improper Trust distributions and payments. (Doc. 2, pp. 10,14-15 (wherefore clauses) (emphasis added)). Based on those requests, this is a paradigmatic quasi in fern proceeding under Princess Lida.10 See 305 U.S. at 467, 59 S.Ct. 275 (holding that, actions pertaining “solely .. to administration and restoration of [a trust’s] corpus” .are quasi in rem). In the Court’s, research, every federal circuit presented 'with, a similar fact pattern has reached the same conclusion. See, e.g., Cartwright, 751 F.3d at 762 (“In suits involving trust administration,, the court must control the property in order to give effect to the resolution of the case, and are quasi in rem.”); Cassity, 995 F.2d at 1012 (“[A] suit that concerns or determines the ownership,' .control and administration of a trust and the powers, duties and liabilities of the trustees is either in rem or quasi in rem.”); Dailey, 987 F.2d at 177 .(“The primary relief sought in both actions is the restoration of trust funds which were allegedly misappropriated. This is precisely the situation which was at issue in Princess Lida and which the court stated was encompassed within the term quasi in rem.”); Beach v. Rome Trust Co., 269 F.2d 367, 371 (2d Cir. 1959) (“[P]laintiffs demands for accounting of the estate and trust and removal of the trustee fall within the rule that a previously attached quasi in rem- jurisdiction of *1252property in a state court requires a federal court to dismiss any claim with regard to the property where the-adjudication would interfere with the proceedings in the state court. This principle is so firmly rooted in our law as to have required and not merely permitted [the district judge] to dismiss the plaintiffs claims insofar as they sought an accounting of the estate and trust.” (citations omitted)). Moreover, Plaintiffs’ claims fall squarely within Florida’s historical quasi in rem definition. See State ex reí S. Brevard Drainage Dist. v. Smith, 126 Fla. 72, 170 So. 440, 441 (1936) (“A proceeding quasi in rera is applied to any action' between parties where the direct object is to reach and dispose of, or to adjudicate the title or status of, property owned by the parties, or of some interest claimed by them, and duly put in issue by the allegations of the pleadings therein.”). Accordingly, this action is quasi in rem under both state and federal law.

Briefly, Plaintiffs raise two counterarguments that warrant discussion. First,’relying on Marshall v. Lauriault, 372 F.3d 175, 181 (3d Cir. 2004), Plaintiffs claim that this is an in personam action dealing “primarily with a determination of rights in [the] Trust,” not with the Trust’s administration, and thus Princess Lida does not apply.11 (Doc. 60, pp. 5-6.) The Court disagrees. Tellingly, Plaintiffs’ counterargument ignores their Complaint’s affirmative allegation that the “administration of [the] Trust is dependent, in part, upon the facts or the law applicable to the facts” at issue here. (Doc. 2, ¶ 37.) More pertinently, Marshall is inapposite. Marshall involved a -dispute over whether and to what extent adult adoptees qualified as beneficiaries under the terms of a trust. See 372 F.3d at 177-79. Here, as addressed above, Plaintiffs know precisely who the Trust beneficiaries are and how they will take: Defendant Gina Paulucci is the primary beneficiary, and Plaintiffs are the contingent remainder beneficiaries who will take per stirpes if Gina dies without surviving issue. (Doc. 2, ¶¶ 1, 7-9; Doc. 2-2, pp. 7-8.) In other words, Plaintiffs are not simply seeking an adjudication of their rights in the Trust; rather, they are contesting the trustees’ administration of it, as well as the South Dakota court’s approval of that administration. Princess Lida therefore applies. See 305 U.S. at 466-67, 59 S.Ct. 275; see also Dailey, 987 F.2d at 177 (rejecting a similar version of Plaintiffs’ argument).

Second, relying on Al-Abood ex rel. AlAbood v. El-Shamari, 217 F.3d 225, 232 (4th Cir. 2000), Plaintiffs argue that this action—particularly the surcharge claim— seeks money damages that do not require control of the Trust res to grant and thus do not implicate Princess Lida. (Doc. 60, pp. 6-7.) Again, the Court disagrees and finds Plaintiffs’ authority inapposite.

In Al-Abood, a wealthy resident of Monaco sued two “former family friends” in a U.S. district court in Virginia, claiming monetary damages for their alleged fraudulent conversion of funds from her trust, brokerage account, and “real estate ventures.” See 217 F.3d at 230-31. Defen*1253dants moved to dismiss under Princess Lida, arguing that the U.S. action was barred by an action they had already filed in a Monacan court. See id. at 231-32. In the Monacan action, the defendants claimed that the plaintiff had looted their trust—that is, a different trust than the one at issue in the U.S. action. See id. The U.S. district court denied the Princess Lida motion, and the Fourth Circuit affirmed, reasoning that the district court did not have to control the defendants’ trust in order to award monetary damages for the diminution of the plaintiff’s trust and other accounts. See id. at 232 (“Even if the Monacan case does concern a trust res, the jurisdiction of the federal courts in this suit does not depend on or involve exercising jurisdiction over that res. ” (emphasis added)).

In contrast to Al-Abood, this action and the South Dakota action involve the same trust. Further, unlike the plaintiff in Al-Abood, Plaintiffs here are not presently entitled to any of the Trust assets that they claim have been unduly diminished; they are contingent beneficiaries, and the contingencies have not occurred. Accordingly, this case does not present an Al-Abood situation where awarding monetary damages directly to the plaintiff would resolve the matter; instead, if Plaintiffs here were to prevail on their surcharge and avoidance claims, any recovery would have to be returned to the Trust corpus,12 and the Court cannot effectuate that remedy without substantially controlling the Trust. This action is therefore quasi in rem. See Cartwright, 751 F.3d at 762 (“[P]laintiff claims that both the value of the trust assets, and his beneficial interest therein, have been diminished— [I]f plaintiff were successful in recovering trust assets that he claims were diminished as a consequence of defendants’ conduct, the court would be required to exercise some control over ... the trusts in order to effectuate that remedy. Accordingly, we hold that the ... action is quasi in rem.”); see also Cassity, 995 F.2d at 1012 (reaching essentially the same conclusion on different facts).13

In sum, for the reasons addressed above, this action proceeds quasi in rem, as does the South Dakota action. As the Plaintiffs initiated this action on June 26, 2014 (Doc. 2, p. 1)—nearly six months after the South Dakota court’s January 2, 2014 assumption of jurisdiction over the trust (Doc. 59-1, p. 7)—the Court “must yield” to the South Dakota court’s quasi in rem jurisdiction and abstain from resolv*1254ing this action. See Princess Lida, 305 U.S. at 466, 59 S.Ct. 275.

CONCLUSION

Accordingly, it is hereby ORDERED AND ADJUDGED:

1. Defendants’ Consolidated Motion to Dismiss the Complaint (Doc. 59) is GRANTED IN, PART AND DENIED IN PART.

a. The motion is GRANTED in that the Princess Lida doctrine, 305 U.S. at 465-68, 59. S.Ct. 275, requires abstention from and. dismissal of this action.

b. In all other respects, the motion is DENIED WITHOUT PREJUDICE.

2. This action is DISMISSED WITHOUT PREJUDICE.14

3. The Clerk is DIRECTED to terminate all pending deadlines and to close the file.