OPINION OF THE COURT
William Schwab appeals from an order of the District Court affirming an order of the Bankruptcy Court granting CGL, LLC’s motion for leave to sue Schwab in the Lancaster County, Pennsylvania, Court of Common Pleas for actions taken in his capacity as trustee of the bankruptcy estate of VistaCare Group, LLC. The primary question on appeal is whether the Barton doctrine, which requires a party seeking to sue a court-appointed receiver, to first obtain leave of the appointing court, applies to bankruptcy trustees in light of changes in the bankruptcy laws. For the reasons set forth below, we hold that (1) the Barton doctrine continues to apply to bankruptcy trustees and (2) the Bankruptcy Court’s decision to grant leave in this case was proper. Therefore, we will affirm.
I.
William Schwab (“the Trustee”) was appointed as the Chapter 7 trustee of the bankruptcy estate of VistaCare Group, LLC (“VistaCare”). VistaCare’s bankruptcy estate included Parkside Manor Retirement Community (“Parkside”), a 12.2 acre parcel of land located in Lancaster County, Pennsylvania. The parcel consisted of forty-five lots, forty-four of which were subdivided and zoned for mobile homes. The forty-fifth lot (“Lot 45”) contained a four-story retirement and assisted living facility. All of the lots shared common infrastructure, including roads, sewer lines, storm lines, and water lines. The lots were subject to a subdivision plan, which contained various restrictions, including “Restriction No. 1,” which provided: “Fee title to the Lot shown on this plan will not be transferred to the parties having residences constructed upon the said Lots, but title will remain in the developer, his heirs and assigns.” The subdivision plan was approved by East Cocalico Township (“the Township”) and recorded in the Office of the Recorder of Deeds of Lancaster County.
On July 25, 2008, the Trustee filed a motion in the U.S. Bankruptcy Court for the Middle District of Pennsylvania, seeking authorization to sell Parkside, either as one parcel, or as two separate parcels, with one parcel consisting of Lot 45 and the other containing the remaining forty-four lots. The Trustee’s motion acknowledged the existence of Restriction No. 1 and stated that a sale of Parkside as two separate parcels “would be contingent upon approval by East Cocalico Township of the modification of Restriction No. 1 to allow the personal care home and the mobile home park to be separated.” The Bankruptcy Court granted the motion on August 21, 2008. On September 27, 2008, after a public auction, CGL, LLC (“CGL”) entered into an agreement for the purchase of Lot 45. On November 14, 2008, the Township Solicitor confirmed that Restriction No. 1 did not prevent the sale of *223 Lot 45, and in an order dated March 10, 2009, the Bankruptcy Court stated, “[t]his sale shall ... be free and clear of Restriction # 1 of the Subdivision Plan.” The sale of Lot 45 closed on May 8, 2009.
During this time, the Trustee had determined that it was necessary to liquidate the remaining forty-four lots on Parkside. While making preparations to sell the lots, the Trustee discovered that some residents in the mobile home park had permanently affixed their mobile homes to the land. The Trustee then instituted adversary actions against these residents. To resolve the adversary actions, the Trustee and the residents agreed that the lots could be sold to the residents, despite Restriction No. l’s prohibition on sales to individuals “having residences constructed” on the land. Most of the lots were subsequently sold to the individual residents. For each sale, the Trustee filed a Report of Sale with the Bankruptcy Court. On December 14, 2009, the Trustee and the Township entered into an agreement abrogating Restriction No. 1 as to the forty-four individual lots. CGL was not a party to that agreement.
On July 30, 2010, CGL filed in the Bankruptcy Court a motion for leave to file suit against the Trustee in the Lancaster County, Pennsylvania, Court of Common Pleas. CGL alleged that the sales of the individual lots were unlawful and that such sales damaged its property interests in Lot 45. CGL further alleged that the December 14 agreement between the Trustee and the Township abrogating Restriction No. 1 deprived CGL of its property rights without notice and without due process of law. On August 12, 2010, the Trustee filed a response, in which he asserted that under
Barton v. Barbour,
On October 21, 2010, the Bankruptcy Court held a hearing on CGL’s motion, in which Grant Wise, the sole owner of CGL, and the Trustee, testified. During the hearing, the Bankruptcy Court expressed doubt as to whether CGL needed its permission to file suit against the Trustee in state court, opining that Barton was “antiquated and probably not controlling in the Third Circuit.” Nevertheless, the Bankruptcy Court went on to determine whether it should grant leave in this case. After hearing arguments, the Bankruptcy Court concluded that although it could not predict whether CGL would be successful on its state law claims, such claims were not “on [their] surface, frivolous.” The Bankruptcy Court added that state court was the appropriate forum to resolve the dispute given that state courts “probably ha[d] an expertise in th[e] area.” On October 22, 2010, the Bankruptcy Court issued an order formally granting CGL’s motion for leave.
The Trustee appealed to the U.S. District Court for the Middle District of Pennsylvania. On May 26, 2011, the District Court affirmed the Bankruptcy Court’s order.
In re Vistacare Grp., LLC,
No. 10CV-2522,
II.
The Bankruptcy Court had jurisdiction under 28 U.S.C. § 157(b). The District Court had jurisdiction over the appeal from the Bankruptcy Court under 28 U.S.C. § 158(a), and we have jurisdiction under 28 U.S.C. §§ 158(d) and 1291. On appeal, “we ‘stand in the shoes’ of the District Court and review the Bankruptcy Court’s decision.”
In
re
Global Indus. Techs., Inc.,
III.
A.
The first question presented by this case is whether a party must first obtain leave of the bankruptcy court before it brings an action in another forum against a bankruptcy trustee for acts done in the trustee’s official capacity. We now join our sister circuits in holding that, under the doctrine established in
Barton v. Barbour,
leave of the bankruptcy court is required before instituting such an action.
See, e.g., Laurrence v. Goldberg,
Established by the Supreme Court over a century ago, the
Barton
doctrine provides that “before suit is brought against a receiver!,] leave of the court by which he was appointed must be obtained.”
As the Court explained ten years later in
McNulta v. Lochridge,
In this case, although the Bankruptcy Court did not definitively hold that the
Barton
doctrine did not apply to bankruptcy trustees, during the hearing on CGL’s motion for leave, the Bankruptcy Court stated that the doctrine was “antiquated and probably not controlling in the Third Circuit.” The Bankruptcy Court opined that although courts may have applied the
Barton
doctrine to bankruptcy trustees under the bankruptcy system in place before 1978, the Bankruptcy Reform Act of 1978, commonly known as the Bankruptcy Code, 11 U.S.C. §§ 101-1527 (“the Bankruptcy Code” or “the Code”), fundamentally overhauled the bankruptcy laws, and in the process, raised doubts about the continued applicability of
Barton.
During the hearing, the Bankruptcy Judge echoed the concerns he had previously raised in
In re Lambert,
Although Congress has never expressly codified the Barton doctrine, implicit in a provision of the Judicial Code, 28 U.S.C. *226 § 959(a), is a general rule that a party seeking to sue a receiver or trustee must first obtain permission from the appointing court. Section 959(a) provides:
“Trustees, receivers or managers of any property, including debtors in possession, may be sued, without leave of the court appointing them, with respect to any of their acts or transactions in carrying on business connected with such property. Such actions shall be subject to the general equity power of such court so far as the same may be necessary to the ends of justice, but this shall not deprive a litigant of his right to trial by jury.”
28 U.S.C. § 959(a) (emphasis added). 3
This provision, originally enacted in 1887, just six years after
Barton,
seems to have been in direct response to the concerns raised in Justice Miller’s dissent in
Barton.
Criticizing the scope of the Court’s holding, Justice Miller noted that the role of a receiver had expanded well beyond winding up the affairs of a defunct corporation and liquidating its assets, to in some situations, essentially running the company.
4
Barton,
When Congress enacts legislation, it is presumed to act with knowledge of the “existing law and judicial concepts.”
Farina v. Nokia Inc.,
Significantly, although the Bankruptcy Code overhauled the bankruptcy system and replaced many of the bankruptcy statutes, § 959(a) was left intact. Although 28 U.S.C. § 959 is technically part of the Judicial Code, we note that the other subsection in § 959, subsection (b), was amended when Congress enacted the Bankruptcy Code.
6
Thus, Congress was clearly aware of § 959 when it adopted the Code, and its decision to leave subsection (a) intact is telling. As the Supreme Court has explained, “[w]hen Congress amends the bankruptcy laws, it does not write ‘on a clean slate.’ ”
Dewsnup v. Timm,
Moreover, the policies underlying the
Barton
doctrine continue to apply with full force to bankruptcy proceedings. Upon the filing of a bankruptcy petition, a bankruptcy estate is created, which consists of, with certain exceptions, all of the debtor’s legal or equitable interests in property, wherever located and by whomever held. 11 U.S.C. § 541(a). The district court in which a bankruptcy case is commenced has exclusive jurisdiction over all of the property of the estate, 28 U.S.C. § 1334(e)(1), and the bankruptcy court within such district may hear and determine all cases under the Bankruptcy Code and all “core proceedings” arising under the Code, 28 U.S.C. § 157(b)(1). Because a judgment against the trustee, whether ultimately satisfied out of the assets of the estate or out of the trustee’s pockets, may affect the administration of the estate, “[t]he requirement of uniform application of bankruptcy law dictates that all legal proceedings that affect the administration of the bankruptcy estate” be either brought in the bankruptcy court or with the permission of the bankruptcy court.
In re Crown Vantage, Inc.,
Although the Bankruptcy Court did not address the impact of § 959(a), it opined that several other changes implemented by the Code have raised questions about the continued applicability of the
Barton
doctrine. First, the Bankruptcy Court noted that under the Code, trustees are no longer appointed by the bankruptcy court, but instead are appointed by a United States Trustee. Second, the Bankruptcy Court observed that 11 U.S.C. § 362 provides for the automatic stay of all suits and lien enforcement efforts against the debtor or the debtor’s estate, thus making it more difficult for a third party to drain the assets of the estate. Finally, although the Bankruptcy Judge did not raise this concern here, in his decision in
In re Lambert,
he noted that 11 U.S.C. § 323(b) provides that a trustee “has capacity to sue and be sued,” but says nothing about a leave-of-
*229
court requirement.
We first address the contention that changes in the way in which trustees are appointed undermined the basis for the Barton doctrine. Under the Bankruptcy Act of 1898, ch. 541, 30 Stat. 544 (1898) (superseded 1978) (“the Bankruptcy Act”), and the Chandler Act, ch. 575, 52 Stat. 840 (1938) (superseded 1978), the predecessors to the Code, trustees were appointed by the courts. However, when the Code was adopted in 1978, a pilot program was initiated, under which the power to appoint bankruptcy trustees was vested in the United States Department of Justice. 2 Norton Bankr.L. & Prac.3d § 26:1 (3d ed.2012). The program was “designed to remove the ... awkward relationship between bankruptcy judges and private trustees, whom they appointed], which ha[d] generated great disrespect for the bankruptcy system.” H.R.Rep. No. 95-595, at 113 (1977), reprinted in 1978 U.S.C.C.A.N. 5963, 6074. In 1986, Congress added 28 U.S.C. § 581, which established the United States Trustee System on a national basis. Pub.L. No. 99-554, 100 Stat. 3088, 3091 (1986). 8 Under the current system, the U.S. Attorney General is charged with the appointment of United States Trustees, who, among other things, “establish, maintain, and supervise [] panel[s] of private trustees that are eligible and available to serve as trustees in cases under chapter 7.” 28 U.S.C. § 586(a)(1). Upon the commencement of a Chapter 7 case, the U.S. Trustee selects an individual from the panel to serve as the trustee in that case. 11 U.S.C. § 701(a)(1). 9
CGL argues that because the
Barton
doctrine specifically requires leave of the
appointing
court, and there is no appointing court under the modern bankruptcy system,
Barton
is no longer valid. We disagree. A bankruptcy trustee is the “statutory successor to the equity receiver” and “lj]ust like an equity receiver, a trustee in bankruptcy is working in effect” for the court overseeing the bankruptcy proceeding, “administering property that has come under the court’s control by virtue of the Bankruptcy Code.”
In re Linton,
The Bankruptcy Court further opined that the
Barton
doctrine is no longer necessary in light of 11 U.S.C. § 362, which provides for the automatic stay of any attempt to collect against property of the estate. We disagree. First, as the U.S. Court of Appeals for the Seventh Circuit explained in
In re Linton,
there are several rationales for the
Barton
doctrine unrelated to the concern that a suit against the trustee could directly threaten the assets of the estate.
Second, assuming a suit against a bankruptcy trustee in another forum would jeopardize the assets of the estate, Congress’s adoption of § 362 still does not convince us that it intended to abrogate
Barton.
10
The power of a court to stay collection efforts against the debtor has always been an integral part of bankruptcy law.
See
1A Collier on Bankruptcy § 11, at 130 (1898 ed.) (“The power to stay suits concerning the person or property of the bankrupt is essential to the orderly administration of a bankruptcy law.”). Mindful of the Supreme Court’s admonition that we should not read a Bankruptcy Code provision to “effect a major change in pre-Code practice” absent clear congressional intent,
Dewsnup,
Section 11 of the Bankruptcy Act of 1898 provided that a lawsuit pending when a bankruptcy petition was filed would be stayed if the suit was based on a claim that would be subject to discharge. § 11,
In 1978, as part of the new Bankruptcy Code, Congress enacted 11 U.S.C. § 362, which provides that upon the filing of a voluntary or involuntary case, all suits and lien enforcement efforts against the debtor or the debtor’s estate shall be automatically enjoined, subject to certain exceptions for repeat bankruptcy filers. The legislative history accompanying § 362 explains that its primary purpose was to give the debtor a “breathing spell” from creditors, to allow the debtor to begin the process of discharging his debts, and where applicable, to develop a repayment or reorganization plan. H.R.Rep. No. 95-595, at 174, reprinted in 1978 U.S.C.C.A.N. at 6135. Section 362 was also intended to protect creditors by preventing one creditor from obtaining payment of its claims to the detriment of others. Id. The legislative history noted that the existing automatic stay provisions were “inadequate, both from the standpoint of the debtor ... and of the creditor.” Id. Therefore, § 362 “expanded] coverage in some areas, reduce[d] it in others, and clarifie[d] many uncertain aspects of the [old] provisions.” Id. Given that the applicability of the Barton doctrine under the pre-Code system has not been questioned, despite the existence of automatic stay provisions under the Bankruptcy Act and the former Rules of Bankruptcy Procedure, we decline to interpret the changes implemented by § 362 as eliminating the long-standing common law Barton doctrine. 11
Finally, we address CGL’s argument that because 11 U.S.C. § 323(b) provides that a trustee has the “capacity to sue and be sued,” but mentions no leave-of-court requirement, no such requirement exists. In
In re Lambert,
the bankruptcy court stated, “[s]hould Congress have wanted to subject lawsuits against the trustee to preliminary court approval, it clearly could have used language that [it] inserted in multiple other provisions directing the need for court authorization.”
In sum, we hold that the Barton doctrine remains valid, and therefore, subject to the exception in § 959(a), a party must first obtain leave of the bankruptcy court before it brings an action in another forum against a bankruptcy trustee for acts done in the trustee’s official capacity.
B.
Although the Bankruptcy Court expressed skepticism as to whether
Barton
applied, it nevertheless held a hearing on CGL’s motion for leave,
12
and ultimately granted the motion. The Bankruptcy Court therefore complied with
Barton
and we will consider whether its decision to grant CGL’s motion for leave constituted an abuse of discretion.
In re Linton,
A party seeking leave of court to sue a trustee “must make a prima facie case against the trustee, showing that its claim is not without foundation.”
In re Nat’l Molding Co.,
In this case, the Bankruptcy Court did not abuse its discretion in concluding that CGL had met its burden of establishing that its claims against the Trustee were “not without foundation.” CGL’s motion for leave alleged that (1) “[t]he sales of individual lots in violation of Restriction No. 1 [were] unlawful and ... caused damage to CGL’s property interests in Lot 45” and (2) the agreement between the Trustee and the Township was “an attempt to deprive CGL of its property rights without notice and without due process of law.” Although CGL’s motion did not specify a particular state law cause of action, as the Bankruptcy Court observed, the proposed state court action would be a property dispute involving the status of Restriction No. 1, and whether the owner of a lot in the subdivision could enforce the restriction against another owner.
CGL’s motion set forth the following factual allegations: (1) the Parkside subdivision plan included a recorded restriction prohibiting the sale of lots to “parties having residences constructed” on the lots; (2) in purchasing Lot 45, CGL relied on assurances from the Township Solicitor that Restriction No. 1 did not prevent the sale of Lot 45, and the Bankruptcy Court’s March 10, 2009 order confirming that the sale was “free and clear of Restriction # 1”; (3) after the sale of Lot 45, the Trustee filed motions with the Bankruptcy Court seeking authorization to sell the individual lots in the mobile home park, but none of those motions advised the court of Restriction No. l’s applicability to the individual lots; (4) the Trustee then sold most of the lots in the mobile home park to individual residents who had affixed their mobile homes to the land; and (5) on December 14, 2009, the Trustee and the Township entered into an agreement which purported to abrogate Restriction No. 1 as to the forty-four individual lots, and CGL was not a party to that agreement. During the hearing on CGL’s motion, Grant Wise, the owner of CGL, testified that he was under the assumption when he purchased Lot 45 that Restriction No. 1 remained in place with respect to the forty-four individual lots, and explained that single ownership was crucial to his decision to purchase.
As the District Court noted, CGL had presented “evidence of a restriction on the deeds to the individual lots that had been recorded,” and there was “a legitimate disagreement about the status of
*234
those restrictions.”
In re Vistacare Grp., LLC,
Here, CGL purchased Lot 45, a parcel within the Parkside subdivision. The subdivision was subject to a restrictive covenant barring the sale of lots to individuals with residences constructed on the lots. Nevertheless, the Trustee sold many of the forty-four individual lots to such individuals, and together with the Township, attempted to remove the restrictive covenant to allow for the sales. Although we express no opinion regarding CGL’s likelihood of success on its claims once it gets to state court, the Bankruptcy Court did not err in concluding that the claims were “not without foundation.”
See In re Nat’l Molding Co.,
On appeal, the Trustee maintains that the Bankruptcy Court erred in failing to consider his arguments that he was entitled to immunity for the challenged actions, or alternatively, that the proposed suit was barred under preclusion principles.
13
We disagree. A bankruptcy court is not required to consider immunities and defenses raised by a trustee when
*235
evaluating a motion for leave. A bankruptcy court cannot be expected to conduct a trial on the merits of a party’s proposed state law claim against a trustee simply to decide whether to grant leave to pursue such a claim in state court. The bankruptcy court need only satisfy itself that the claim is “not without foundation.”
In re Nat'l Molding Co.,
rv.
For the foregoing reasons, we will affirm the order of the District Court affirming the order of the Bankruptcy Court granting CGL’s motion for leave. We hold that: (1) the Barton doctrine continues to apply to bankruptcy trustees; and (2) the Bankruptcy Court did not abuse its discretion in determining that CGL’s proposed claims were “not without foundation.”
Notes
. On June 24, 2011, while this appeal was pending, CGL filed suit against the Trustee in the Lancaster County Court of Common Pleas. On July 20, 2011, the case was removed to the U.S. District Court for the Eastern District of Pennsylvania, and is currently pending in that court. CGL, LLC v. Schwab, Civ. No. 11-4593.
. The U.S. Courts of Appeals for the Fourth, Eighth, Tenth, and District of Columbia Circuits have not spoken on the issue, at least not in published precedential opinions.
. The original provision applied only to "receivers” and "managers” of property. Act of Congress of Mar. 3, 1911, ch. 231, §§ 65, 66, 36 Stat. 1104 (repealed 1948). In 1948, Congress amended the statute and extended it to "trustees” and "debtors in possession.” 62 Stat. 926 (June 25, 1948) (codified at 28 U.S.C. § 959(a)).
. Justice Miller was particularly worried about the potential effect of the majority’s holding on suits against railroad corporations.
Barton v. Barbour,
. It is important to note that 28 U.S.C. § 959(a) does not apply here. VistaCare was not in the business of buying and selling real estate. Thus, in selling the lots on the Park-side property, the Trustee was not carrying on VistaCare’s business, but rather performing his duty as trustee to liquidate the assets of the estate.
. Section 959(b) of Title 28 of the U.S.Code provides:
Except as provided in section 1166 of title 11, a trustee, receiver or manager appointed in any cause pending in any court of the United States, including a debtor in possession, shall manage and operate the property in his possession as such trustee, receiver or manager according to the requirements of the valid laws of the State in which such property is situated, in the same manner that the owner or possessor thereof would be bound to do if in possession thereof. In 1978, Congress substituted "Except as
provided in section 1166 of tille 11, a trustee” for "A trustee.” Act of Congress of Nov. 6, 1978, Pub.L. 95-958.
. Citing
McNulta v. Lochridge,
. The only exceptions are Alabama and North Carolina, which are not part of the United States Trustee System, and in the judicial districts in those states, bankruptcy courts retain the power of appointment and direct supervision. 2 Norton. Bankr.L. & Prac.3d § 26:1 (3d ed.2012).
. Under 11 U.S.C. § 701, a member of the panel of private trustees is initially appointed to serve on an interim basis. Eligible creditors subsequently have an opportunity to elect a trustee, and if no trustee is elected, the interim trustee serves as trustee in the case. 11 U.S.C. § 702.
. We emphasize that we are assuming, for the purpose of addressing the Bankruptcy Court’s point, that the assets of the estate will be affected. As we noted in Footnote 7, supra, we express no opinion as to whether a judgment against the Trustee in this case will be satisfied out of the assets of the estate.
. We also note that the availability of one mechanism to protect against depletion of the assets of the bankruptcy estate does not necessarily foreclose others. Bankruptcy courts have broad powers (in addition to 11 U.S.C. § 362) to protect the property of the estate. For example, under 11 U.S.C. § 105(a), a bankruptcy court may issue injunctive relief "where parties are pursuing actions pending in other courts that threaten the integrity of a bankrupt's estate.”
In re DeLorean Motor Co.,
. Our holding should not be read as requiring a bankruptcy court to conduct a hearing on a party's motion for leave in every case. Whether to hold a hearing is within the sound discretion of the bankruptcy court.
. At oral argument, CGL asserted that the immunity issue was never raised before the Bankruptcy Court and thus we should consider it waived. Although CGL is correct that the issue was not addressed during the October 21, 2010 hearing before the Bankruptcy Court, the Trustee did raise immunity as a defense in his response to CGL's motion for leave. This was sufficient to preserve the issue for appellate review.
