Luis Soto-Rios and Brenda Tosado-Ar-belo (“debtors”) filed for bankruptcy under Chapter 11, years after they had executed three mortgage deeds in favor of Banco Popular de Puerto Rico. In the midst of the bankruptcy proceedings, the debtors sought to avoid the mortgages, and to prevent any post-petition actions that would perfect them. See 11 U.S.C. §§ 362(a), 544(a), 547(b). On summary judgment, the bankruptcy court rejected the debtors’ efforts. When the district court later affirmed this decision, the debtors pursued this appeal before us. We affirm.
I. BACKGROUND
In 2004 and 2005 the debtors executed the three mortgage deeds to secure two loans. The mortgagee Banco Popular, in turn, presented the documents for recording to the Registry of the Property for Puerto Rico (hereinafter, “registry” or “registrar”). Two deeds were presented in October 2004, and the third approximately ten months later in 2005. Due to an administrative backlog, however, the three presented mortgage deeds were still pending recordation when the debtors filed for bankruptcy nearly three years later. 1
*115 During the bankruptcy proceedings, Banco Popular filed a secured proof of claim regarding the loan debts putatively secured by the three mortgage deeds. In response, the debtors filed an adversary proceeding asserting their right to avoid the mortgages under certain provisions of the Bankruptcy Code, including the automatic stay, the “strong arm” power and the avoidance of preferential transfers. 2 See 11 U.S.C. §§ 362(a)(5), § 544(a), 547(b). After an exchange of pleadings, the parties agreed that the case could be resolved on summary judgment and subsequently filed competing motions. The bankruptcy court granted Banco Popular’s motion and dismissed the debtors’ adversary action. In ruling that exceptions to the automatic stay and strong arm power applied, 11 U.S.C. §§ 362(b)(3), 546(b)(1)(A), the court rejected the debtors’ argument that, until the deeds were fully recorded, Banco Popular lacked a pre-petition property interest. The bankruptcy court also ruled that the debtors failed to establish the necessary elements of a preferential transfer, 11 U.S.C. §§ 547(b), 547(e)(1)(A). After an unsuccessful appeal to the district court, this appeal followed.
II. STANDARD OF REVIEW AND ISSUES ON APPEAL
Bankruptcy practice encompasses traditional summary judgment standards, as provided under Rule 56 of the Federal Rules of Civil Procedure.
See
Bank. R. 7056;
In re Varrasso,
Before us, the debtors first challenge the bankruptcy court’s application of the exceptions to the automatic stay and trustee strong arm power on the sole basis that Banco Popular never obtained the required pre-petition property interest. They contend that because recording is essential to the valid constitution of a mortgage deed under Puerto Rico law, the three deeds evidenced no more than unsecured personal obligations at the time that the bankruptcy petition was filed. The debtors also argue that the bankruptcy court erred in ruling that they failed to establish the elements of a preferential transfer. See 11 U.S.C. § 547(b). We address each argument in turn.
III. GOVERNING LAW AND ANALYSIS
A. Exceptions to Automatic Stay and Strong Arm Power
Resolution of this appeal involves the interplay between and among provisions of *116 the Bankruptcy Code and Puerto Rico law. Certain portions of the Bankruptcy Code serve as the framework for the legal issue, and so we begin our endeavor there. We then will turn to navigate local law. While the path is a bit meandering, in the end the conclusion is clear.
1. Pertinent Bankruptcy Code Provisions
As a familiar bedrock of bankruptcy law, the automatic stay creates “breathing room” for debtors, at least temporarily, by foreclosing creditors from pursuing certain collection efforts against the debtor’s assets once a petition for bankruptcy has been filed. 11 U.S.C. § 362(a);
In re 229 Main St. Ltd. P’ship,
While section 362(b)(3) limits the automatic stay, its companion statute, section 546(b), limits the debtor’s power to avoid statutory liens under the so-called strong arm provision.
See id.
The instant that a bankruptcy petition is filed, the bankruptcy trustee is vested with the status of a hypothetical bona fide purchaser of real property, and may ordinarily avoid any transfer of the property or obligation of the debtor to the extent allowed under state law.
See
11 U.S.C. § 544(a)(3);
In re Ryan,
As earlier noted, the debtors’ challenge to the application of sections 362(b) and 546(b)(1)(A) is solely based on the existence of a single element common to both exceptions—whether Banco Popular had acquired a pre-petition “interest in property.”
See 229 Main St.,
*117 2. Meaning of “Interest in Property ”
Local law ordinarily dictates the existence and extent of an entity’s interest in property.
See 229 Main St.,
In 229 Main Street, the Commonwealth of Massachusetts sought relief from the automatic stay so that it could establish and secure a lien for monies that it had expended in the pre-petition environmental cleanup of the debtor’s property. Id. at 3. Under Massachusetts environmental law, a debt comes into being once the Commonwealth incurs the cleanup expenses, which simultaneously ripens into a lien and becomes perfected when a claim statement is recorded, registered or filed. See id. at 4, 7. The Commonwealth had notified the property owner by letter of its intent to record a claim statement and had entered into administrative proceedings relative to liability and the amount owed. Id. at 3. But the debtor filed for bankruptcy before the administrative proceedings had concluded and before a claim statement had been filed to effect the recording of a lien. Id.
These circumstances required us to determine whether the Commonwealth possessed a pre-petition “interest in property” under sections 362(b)(3) and 546(b)(1)(A). See id. at 3-7. Applying the plain language of the Bankruptcy Code, we held that the federal statutory term “interest in property” is “unequivalent to, and broader than,” the term “lien.” Id. at 7. We also concluded that the “amalgam” of circumstances presented in the case gave rise to a pre-petition property interest. See id. In particular, we focused on the following: “the Commonwealth’s expenditures, together with its notice of intent to record a lien and its tenacious pursuit of that lien through administrative channels.” Id. With this backdrop, we turn to examine the nature of Banco Popular’s pre-petition interest under the mortgage deeds which it had presented for recording, as informed by Puerto Rico law.
3. Pre-petition “Interest in Property ” Informed by Puerto Rico Law
In general, a mortgage comprises a conveyance or retention of an interest in real property executed for the benefit of the mortgagee to secure payment of a debt.
See generally
Restatement (Third) of Property: Mortgages § 1.1 (1997); 54A Am.Jur. 2d
Mortgages
§§ 1, 138 (2009);
see also Liechty v. Descartes Saurí,
In their briefing, both parties use nomenclature suggesting that Puerto Rico is a lien theory jurisdiction. But they focus on different provisions of Puerto Rico law to reach opposite conclusions on the critical issues. The debtors assert that recor-dation of a mortgage deed is so essential to its validity under Puerto Rico mortgage law that even when such a deed is presented to the registry for recording, no property interest vests until the deed is actually recorded by the registrar. According to the debtors, because the mortgage deeds were unrecorded at the time the bankruptcy petition was filed, they were no more than unsecured personal obligations and did not confer a pre-petition property interest on Banco Popular. Meanwhile, Banco Popular stands on Puerto Rico’s relation back doctrine to contend that a bona fide third party who acquires rights in real property after a mortgage security interest in the same property has been presented and is pending recordation acquires the property interest subject to the perfection of the first-in-time security interest. Thus, according to Banco Popular, the execution of the mortgage deeds along with the acts of presentment sufficiently vested in it a pre-petition interest in the real property which the Bankruptcy Code allows to continue to perfection.
After review of the relevant local law, along with the instruction of 229 Main Street, we agree with Banco Popular’s position that it attained a pre-petition “interest in property” within the meaning of sections 362(b)(3) and 546(b)(1)(A) of the Bankruptcy Code.
In Puerto Rico, the nature and effect of mortgages is governed by the Commonwealth’s Mortgage and Property Registry Act of 1979 and portions of its Civil Code. See P.R. Laws Ann. tit. 30, § 2001 et seq. (2005); P.R. Laws Ann. tit. 31, § 5001 et seq. (1991). The mortgage law provides:
A mortgage directly and immediately binds an estate and the rights on which it is imposed, whoever its owner or titleholder may be, to the fulfillment of the obligation for the security of which it was constituted.
Recorded mortgages shall be strictly real encumbrances, permitting mortgage loans to be made regardless of any subsequent right that is acquired on the same property or mortgage rights....
P.R. Laws Ann. tit. 30, § 2551; see also P.R. Laws Ann. tit. 31, § 5043 (effect of mortgage on property); P.R. Laws Ann. tit. 30, § 2601 (defining “voluntary mortgages”). The civil code sets forth the “essential requisites” of a mortgage contract, including that a mortgage “be constituted to secure the fulfillment of a principal obli *119 gation.” P.R. Laws Ann. tit. 31, §§ 5001, 5002.
Additionally, the civil code prescribes that “it is indispensable, in order that the mortgage may be validly constituted, that the instrument in which it is created be entered in the registry of property.” P.R. Laws Ann, tit. 31, § 5042. A companion statute under the mortgage law also provides that “[i]n order for voluntary mortgages to be validly constituted” the mortgage must be “stipulated in a deed” and must “be recorded in the Property Registry.” P.R. Laws Ann. tit. 30, § 2607. While recording is a necessary prerequisite to “valid constitution,” the original date a mortgage deed is presented to the registry for recording establishes priority between competing registrations. Pursuant to P.R. Laws Ann. tit. 30, § 2256:
Registered titles shall become effective for third parties from the date of their registration. For all intents and purposes, the registration date, including the determination of the term needed for cancellation of entries, must appear in the registration itself.
In order to determine preference between two or more registrations of the same property, attention shall be given to the date, hour and presentation number of the respective titles in the Registry.
The debtors would have us conclude the analysis here. They take the cut-and-dried position that a foundational prerequisite for valid constitution was not in place and therefore Banco Popular enjoyed no more than a personal obligation, not an interest in property, at the time the bankruptcy proceedings commenced. To support their stance, the debtors point to several decisions of the Puerto Rico Supreme Court and those of federal courts interpreting Puerto Rico law.
See, e.g., Rosario Pérez v. Registrador,
Without doubt, the debtors’ cases set forth the fairly unremarkable position that “recordation is a constitutive act through which the security produces real effects and becomes operative
erga mines
[that is, “toward all”] in the sphere of real rights.”
Rosario Pérez,
For example, in
Rosario Pérez
the Supreme Court of Puerto Rico faced the question of whether the registry had properly refused to record a mortgage deed that had been presented for recording
after
the presentment of a writ of attachment barring alienation of the same property.
Rosario Pérez,
To cite one more example, in
Roig Commercial Bank
the United States District Court for the District of Puerto Rico faced the question of whether a mortgagee was a party in interest with a right to redeem property that the Internal Revenue Service had seized and then sold at public auction.
Roig Commercial Bank,
*121
At the same time, at a minimum Puerto Rico law regards presentment to be a legally significant act that initiates the certifying role of the registrar, begins the process of registration, and as previously noted, operates as the decisive point for resolving any competing registrations in the same property.
See
P.R. Laws Ann. tit. 30, § 2256. Generally, once presented, the registrar must pass judgment on the documents within sixty days, or some “just cause” period thereafter, and then either act to record them or alert the applicant to any defect.
See
P.R. Laws Ann. tit. 30, §§ 2255, 2267, 2270-72. Indeed, the registrar must keep detailed records to memorialize the very “moment of presentation” by entering “the exact time of day” into the day book (filing entry).
See
P.R. Laws Ann. tit. 30, §§ 2152, 2154, 2253. Such precision is required, of course, because the filing entry is “intimately linked to the registry principle called rank or priority”; the first filing entry prevails.
Gasolinas, P.R. v. Registrador,
Puerto Rico law also circumscribes whether and how presented documents may be withdrawn before recording occurs, requiring “notarized consent of the person entitled to withdraw” if other documents may be “affected adversely by the withdrawal.” P.R. Laws Ann. tit. 30, § 2254. The most pointed statutory clue is the relation back provision establishing the moment of presentment as the priority marker. P.R. Laws Ann. tit. 30, § 2256;
Gasolinas,
To diffuse the importance of presentment, the debtors contend that for the relation back doctrine “to be activated, an act to record must be undertaken by the [registry],” yet “such an act is clearly stayed” by the automatic stay provision. They also argue that “[r]ecordation cannot be presumed upon the presentation of documents for inscription with the Registrar” because the registrar has a legal duty “to review and qualify the documents presented for inscription before the act of recording can take place.”
We recognize that the relation back provision speaks of competing “registrations,” P.R. Laws Ann. tit. 30, § 2256, and that the registrar bears the legal obligation of “passing judgment” on presented documents to determine whether to record them, P.R. Laws Ann. tit. 30, § 2267. We further acknowledge that under Puerto Rico law recording is a “constitutive” act for a mortgage, and without the existence of a mortgage, a creditor only has an unsecured personal obligation regarding the underlying debt.
See Rosario Pérez,
These rules do not, however, preclude the conclusion that presentment, though
*122
arguably falling short of creating a valid mortgage lien, could create an interest in the real property superior to a later-in-time bona fide purchaser or judicial lien holder. As we held in
229 Main Street,
“interest in property” is a broader term than “lien.”
229 Main St.,
Banco Popular presented the latest mortgage deed for recording two years before the debtors’ bankruptcy filing. There is no claim that the mortgagee dawdled in doing so. In the normal course of events anticipated by the statutory scheme, there is a fair certainty that, absent noticed and uncured defects, recording of the three mortgage deeds would have occurred well before the debtors filed for bankruptcy. And the record is devoid of any suggestion that the documents were defective in any manner or that Banco Popular bears any responsibility for the lengthy delay. Indeed, the “explanatory statement” prefacing the new Property Registry Facilitation Act indicates that registrar delay has been widespread in Puerto Rico for quite some time without the fault of applicants. See 2010 P.R. Laws No. 216. Moreover, the local statutes give no indication that mere passage of time caused by registrar delay somehow nullifies or expires the filing entry or its priority rank. Cf. P.R. Laws Ann. tit. 30, § 2255 (entry of presentation expires where notified defect is not seasonably corrected).
Like the Commonwealth of Massachusetts as the creditor in
229 Main Street,
Banco Popular obtained a concrete, pre-petition debt owed to it by the property owner.
See 229 Main St.,
To accept the debtors’ narrow ,view would, in effect, place Banco Popular in the same position as a creditor who, before a bankruptcy petition was filed, either never presented executed mortgage deeds, withdrew presented deeds or failed to correct known defects. This view, however, does not comport with Puerto Rico law, because the act of presenting a mortgage deed itself has legal significance. Moreover, the approach urged by the debtors
*123
does not accord with the federal bankruptcy principles that are in play. This is not a situation in which a creditor is jockeying for an undue advantage over other creditors or engaging in harassing debt collection conduct in the midst of bankruptcy proceedings.
See Mann v. Chase Manhattan Mortg. Corp.,
After considering the circumstances through the prisms of both federal bankruptcy law and Puerto Rico law, we are satisfied that Banco Popular enjoyed a pre-petition interest in property within the meaning of sections 362(b)(3) and 546(b)(1)(A). Accordingly, we conclude that the debtors have failed to demonstrate that the bankruptcy court erred in ruling that the exceptions to the automatic stay and the trustee’s strong arm power apply in this case.
See Butner,
B. Preferential Transfer
The debtors also challenge the bankruptcy court’s ruling that the necessary elements of a preferential transfer were not established. See 11 U.S.C. § 547. We are not convinced.
Pursuant to section 547(b), the bankruptcy trustee is authorized to avoid certain transfers of “an interest of the debtor in property” made during the ninety days preceding the bankruptcy petition, with certain enumerated exceptions.
In re Net-Velázquez,
Applying the Puerto Rico relation back provision, P.R. Laws Ann. tit. 30, § 2256, the bankruptcy court ruled that the transfers of the mortgage deeds to Banco Popular were “perfected” for purposes of section 547 as of the dates of presentment in 2004 and 2005 — well outside the ninety day window for preferential transfers — because only a bona fide purchaser presenting documents earlier than Banco Popular could have acquired a superior interest.
See
11 U.S.C. § 547(e)(2). The debtors disagree with this ruling, arguing that the mortgage deeds can be avoided as preferential transfers because (1) Puerto Rico’s relation back doctrine cannot be applied to determine when Ban-co Popular’s interest became perfected for purposes of section 547(e)(1)(A), and (2) therefore the transfer of the unperfected deeds is deemed to have occurred immediately before the bankruptcy petition was filed in accord with section 547(e)(2)(C). They point to
Fidelity Fin. Serv., Inc. v. Fink,
In
Fink,
the Supreme Court rejected a creditor’s attempt to rely on a state relation back provision to place perfection of a
*124
lien on personal property within the twenty-day period required under the “enabling loan” exception under section 547(c)(3).
We first note the obvious — that Fink involved a different Code provision relative to perfection than the one at issue here. Because the case involved personalty — a car — rather than realty, the perfection language in Fink tracked section 547(e)(1)(B), which states that perfection occurs when “a creditor ... cannot acquire a judicial lien that is superior to the interest of the transferee” (emphasis added). Here, on the other hand, we focus on section 547(e)(1)(A), which defines perfection on the basis of an “interest that is superior to the interest of the transferee” (emphasis added). As earlier noted, the Code’s differentiation between an “interest” and a “lien” is meaningful, and the debtors here make no effort to take this distinction into account in their reliance on Fink.
More importantly, Banco Popular has not invoked the enabling loan exception and is not looking to rely on the local relation back doctrine to extend a perfection period limited by section 547.
See id.
at 212,
IV. CONCLUSION
The judgment is affirmed.
Notes
. Because the registry has long suffered a substantial backlog, while this appeal was pending the Commonwealth of Puerto Rico enacted the "Property Registry Facilitation Act.” Effective February 10, 2011, all documents presented as of April 30, 2010, with enumerated exceptions, are deemed registered as a matter of law. See 2010 P.R. Laws No. 216; P.R. Reg. for the Implementation of Act No. 216. The effects of the new law have not been fully litigated in this case or in Puerto Rico generally. See infra n. 5. Accordingly, we do not reach Banco Popular's suggestion that Law 216 renders this appeal *115 moot, and instead affirm the lower court’s decision on the merits.
. A debtor in possession stands in the shoes of the bankruptcy trustee, generally having the same rights, powers, duties and functions, with certain exceptions. See 11 U.S.C. § 1107(a). Accordingly, we refer to "the debtors” and "the bankruptcy trustee” interchangeably where appropriate.
. No pincite is available for this decision.
. In a post-oral argument submission made pursuant to Federal Rule of Appellate Procedure 28(j), the debtors argue that their position is further strengthened by
Puerto Rico Farm Credit v. Ruiz Valentin,
No. 09-1377(MEL),
. The Court in
Fink
noted that it was resolving a circuit dispute.
