•MURNAGHAN, Circuit Judge:
The case touches many Americans, for it involves the common experience of purchasing a home. Customarily one contemplates a borrowing secured by a lien on the residential parcel to meet a substantial portion of the purchase price. Few are able first, before buying a house, to accrue all the necessary funds.
It is from that common experience that the present case evolves. The facts are influenced by another common experience of less ancient lineage, namely, persistent, consistently high, rates of inflation, accompanied by increased interest rates.
The plaintiffs in the four consolidated cases 1 are (a) in two of the cases, the persons who, when they bought their homes some time ago, imposed deeds of trust on the parcels of residential real estate as security for loans incurred to meet part of the purchase price and (b) in all four cases, the persons who subsequently bought the real estate, and, in doing so, sought to assume the liabilities secured by the deeds of trust and to have them continue in force for the balance of their original terms, typically 30 years. The defendants are the lending institutions, and the questions at issue all coalesce into the ultimate one of whether provisions in the deeds of trust known as due-on-sale clauses purporting to permit acceleration of the maturity of the loans upon sales of the premises (a) were triggered, and (b), if triggered, were legally enforceable.2
[913]*913We choose, for simplicity’s sake, in dealing with the first question, which is whether the due-on-sale clauses were, in fact, triggered, to single out for detailed description the transactions involving Jeffrey W. Williams et ax, since their case is the one which happens to supply the caption for reference purposes. However, since Thomas A. Bailey and Sharon S. Bailey actually had the contractual relations with First Federal Savings and Loan Association of Arlington, and not the Williams, who merely sought to assume the obligation of Mrs. Bailey (to whom all joint interests in the property had been conveyed by Mr. Bailey), we concentrate on the interests of Mrs. Bailey through whom the rights of the Williams derive.
On April 27, 1977, the Baileys purchased a home located at 8061 Powder Brook Lane, Springfield, Virginia. In • Virginia, the forms used to impose a mortgage security interest, or lien, on land commonly employed in other parts of the United States are not used. Instead, resort has been to the deed of trust. While the formalities differ, for many essential intents and purposes, though by no means all, a deed of trust is equivalent to a mortgage.3
While appellants urge that differences in the two types of security device play a relevant role in the formulation of the method employed to shift ownership of the homes in the several consolidated cases, and, in particular, from Mrs. Bailey to the Williams, it is not evident to us why that is so.4
The purchase price paid by the Baileys on April 27, 1977 ($63,831) was met in part by a loan from First Federal Savings and Loan Association of Arlington, in the face amount of $55,000 at the time of settlement, secured by a deed of trust. By 1980, the outstanding principal had been reduced [914]*914to $53,903.63. The term of the loan was 30 years. Interest on the loan was fixed at 10% per annum.5 Repayment was to be made in level monthly installments of $492. The deed of trust dated April 27, 1977, constituted a first lien in favor of the lender, First Federal Savings and Loan Association of Arlington.
On October 3, 1977, Mr. Bailey had relinquished all his interest in the Springfield, Virginia premises to Mrs. Bailey. She, in 1979, decided to sell. In the interim, since the time of the 1977 purchase, interest rates on financing for purposes of acquiring a house had radically altered, with the going rate having risen to approximately 15% per annum instead of the 10% financing which had been available to the Baileys when they purchased in 1977. As a consequence, in the secondary market in first mortgages, the actual value of the loan secured by the Bailey deed of trust was approximately $38,000, despite its face value of $53,903.63. In other words, a discount of approximately 29% had occurred.
To guard against the possibility of the adverse impact of such discounts, home lending organizations had resorted to insertion in the instruments covering loan transactions of “due-on-sale” clauses.6 The clauses provided that, on transfer of the premises, by the borrower, unless the approval or consent of the lender was first obtained, the loan would be fully callable, becoming immediately due and payable, at the option of the lender.7
[915]*915In current market conditions, the due-on-sale clause obviously would be viewed with distaste by people in the shoes of Mrs. Bailey, for a mortgage or deed of trust which could otherwise continue until the original fixed maturity date (here 2007) at an extremely favorable interest rate (10% as against the current 15%) would be lost to them. Such a loan, if transferable to a buyer through assumption thereof as part of his purchasing arrangements, would have a distinct economic value. To illustrate, Mrs. Bailey, if the loan were transferable, would be able to realize more from the sale of her house than if she were forced to comply with the due-on-sale clause.8
[916]*916In the final analysis, one must conclude that people like Mrs. Bailey are simply too eager to shift to others burdens properly belonging on their own shoulders. Even if the due-on-sale clause is valid, and has been triggered, and Mrs. Bailey, must, therefore, accelerate and pay off the balance due on her deed of trust loan, she, nevertheless, has been a beneficiary economically, vis-a-vis the deed of trust lender, as a result of the borrowing. The effects of inflation have served to erode the real, as distinct from the face, value of money. Hence, paying off $53,903.63 borrowed in 1977 with $53,-903.63 of 1980 or 1981 dollars provides Mrs. Bailey with a tidy economic advantage.9
I. Sale, Conveyance or Transfer.
The first thrust on behalf of appellants, in the jousting with the savings and loan association lenders, is a contention that the residential properties never were “sold or transferred;” or “sold or conveyed” or that title was not “transferred.” 10 Hence, the contention runs, the due-on-sale clauses have never, in fact, operated to accelerate the loans. Reliance is placed on the artificially elaborate form of the transactions employed for transferring title to the purchasers.
The transactions between Mrs. Bailey and the Williams began routinely enough. On November 7, 1979, Mrs. Bailey entered a typical form real estate contract containing terms of sale, and details as to settlement, brokerage commissions, and the like. Foreshadowing what was to come, however, the November 7, 1979 contract, in an addendum, described the subject of the sale as the beneficial interest in a land trust to be created by Mrs. Bailey.
That contract of November 7, 1979 was reinforced by one of the following day, November 8, 1979, called a “Contract to Purchase by Assignment the Beneficial Interest in a Land Trust Holding Real Estate.” It called for Mrs. Bailey to name herself as trustee and to bring about a situation in which she, individually, and she, as trustee, between them would have “full and complete legal and equitable title . . . without lien or encumbrance of any kind, except as noted in any Deed of Trust on the real estate .... ”
No point has been made that those contracts, of themselves, operated to trigger the due-on-sale clause. We, therefore, do not address that question, which might not prove easy of resolution. On the one hand, the contracts did not affect possession, but only the right to possession, upon satisfaction of contingencies, especially meeting of the purchase price. On the other hand, equitable title in the Williams, whatever verbiage to the contrary may have been employed, was created by the contracts of November 7, 1979 and November 8, 1979. See Bellingham First Federal Savings & Loan Association v. Garrison, 87 Wash.2d 437, 439, 553 P.2d 1090, 1091 (1976) (“Thus the real estate contract executed by appellants and defendants is an ‘inter vivos transfer’ within the meaning of the [due-on-sale] clause.”); Mutual Federal Savings & Loan Association v. Wisconsin Wire [917]*917Works, 58 Wis.2d 99, 105, 205 N.W.2d 762, 766 (1973) (“In view of common and technical usage of the term ‘convey’ and the purpose of the ‘due-on-sale clause’ of the mortgage and note, there is no ambiguity. The land contract was a conveyance that gave the purchaser an equitable title to the property as well as the immediate right to possession.”). See Terry v. Born, 24 Wash. App. 652, 604 P.2d 504 (1979).
Rather, the argument of the lenders derives from the fact that Mrs. Bailey, on January 15, 1980, created a trust (secondary, of course, and subject to the 1977 security deed of trust), by means of a document entitled “Declaration and Deed into a Land Trust.” Mrs. Bailey, individually, granted, bargained, and assigned to herself as Trustee the parcel in Springfield, Virginia “to have and to hold ... in fee simple .... ” The Trustee’s power to sell was conditioned on receipt of a consent to do so from the trust beneficiary. The Declaration and Deed into a Land Trust was recorded among the land records of Fairfax County, Virginia.
Mrs. Bailey, as Trustee, also on January 15, 1980, entered into a land trust agreement with herself, designating herself as sole beneficiary of the land trust, and providing that the property had to be sold within twenty years. Since, apart from the November 7, 1979 and November 8, 1979 contracts with the Williams, even without the January 15, 1980 agreement, only the 1977 security deed of trust stood between Mrs. Bailey and absolute title, legal and equitable, it may be questioned whether the agreement was other than a superfluity. See Larchmont Homes, Inc. v. Annandale Water Co., supra, 201 Va. at 181-82, 110 S.E.2d at 252. Cf. as to an analogous development re mortgages, 4 Restatement, Property § 415, Comment a (1944). The purpose, apparently was to effect a change in legal nomenclature so that all interests other than the 1977 deed of trust would be denominated personal property, not real property.
The conveyance to herself, creating the second trust, and the land trust agreement with herself, designating herself as sole beneficiary, the argument of appellants runs, were not contemplated by the terms of the due-on-sale clause. The due-on-sale clause was to become operative only in the event of a transfer of title. To appreciate the argument, one readily perceives that the title has not essentially been affected in any way by the second deed of trust, since beneficial interests of record remain exactly as they were before the January 15, 1980 deed of trust and the January 15, 1980 agreement were executed. Their sole effect, if any, was to transform from “real” to “personal” in the hands of Mrs. Bailey the rights to enjoy, occupy, and otherwise exercise rights of ownership associated with possession. To put it succinctly, there was formally a “conveyance” but substantively no “transfer.”
The District Court, nevertheless, concluded that the mere change in the form of the title, accomplished as it was by “grant, bargain and sale” triggered the due-on-sale clause. Since no substantial change was accomplished we may have reservations about that conclusion, but it makes no matter.
For then came the ingenious next step in the transaction, one which Mrs. Bailey claims was a “transfer” but not a “conveyance.” (Now you see it, now you don’t.) Also on January 15, 1980, Mrs. Bailey executed an “Assignment of Beneficial Interest in Land Trust” undertaking to “sell, assign, transfer, convey and set over” all rights, power, privileges and beneficial interest, including all interest in the property, subordinate to the 1977 deed of trust for the benefit of First Federal Savings and Loan Association of Arlington, as lender. (Emphasis added.) That document manifestly encompassed all rights of enjoyment, occupancy, and use, in perpetuity.11 However, appellants strive to place great reliance on the [918]*918consideration that the subject of the transfer was personal property.12
Of course, one must wonder, in the year of our Lord, One Thousand Nine Hundred and Eighty-One, what significance the maneuvering has had. The end result, with the Williams occupying the property, is essentially no different from the situation the Williams would have been in as purchasers in the customary real estate sales transaction. There can be no doubt that, had a customary real estate deed been employed to accomplish directly the essentially identical result reached by Mrs. Bailey’s circuitous route, the due-on-sale clause would have been triggered.13 If one travels by by-roads rather than use an interstate highway, but ends up at the same destination, the journey has nonetheless taken place. In their contract with the Williams, Mrs. Bailey has been designated: “Seller.” 14
That is where attempted ingenuity again enters the picture. Appellants argue that the due-on-sale clause goes into operation only in the event of a “conveyance” or a “transfer of title” of real estate. They point to instances where, using the words technically, for particular purposes, “conveyance” and “transfer of title” concern only transfer of full legal, or, at the very least, equitable title.15 And if an interest in real estate is called personal property in one set of circumstances, what it is called, they assert, takes precedence over what it is for every purpose. Title to real property, they urge, cannot encompass an interest which is merely “personal.”16
[919]*919They then seek to build on that base by reliance on the argument that, in cases of ambiguity, the ambiguity shall be resolved against the preparer of the document, especially one possessing special knowledge,17 and especially when the document derogates against the common law right of free alienation.18 While it is true that ambiguities are resolved against the party preparing the contract, Baird v. Dodson Bros. Exterminating Co., Inc., 217 Va. 745, 749, 232 S.E.2d 770, 773 (1977); VNB Mortgage Corp. v. Lone Star Industries, Inc., 215 Va. 366, 371, 209 S.E.2d 909, 913 (1974), where a document is clear and unambiguous, the doctrine does not apply. William Schluderberg-T. J. Kurdle Co. v. Trice, 198 Va. 85, 88-89, 92 S.E.2d 374, 377 (1956); see People’s Bank of Rural Retreat v. People’s National Bank of Abingdon, 148 Va. 651, 659-60, 139 S.E. 325, 327 (1927).19 Here, bearing in mind the nature of a transaction by which funds are lent to a home purchaser, there is no ambiguity. Thus, “sold,” “conveyed,” and “transferred” used in each of the deeds of trust clearly extended to the land trust transactions, toppling the house of cards.
The patent error of appellants is their effort to isolate each instrument and say that it, by itself, is not a conveyance of beneficial interests, or not a deed to real estate, so no single document fitting the due-on-sale clause definition exists. It is,however, no more than if appellants were to say that lh is not 1, when one is the requisite number. While the statement may be [920]*920true so far as it goes, the production of three ‘/3s will serve, and that is all that has happened here. Putting the numerous papers all together they, as part of a single, integrated transaction, accomplish a “sale,” a “conveyance,” or a “transfer” within the meaning of the due-on-sale clause. After all was said and done, Mrs. Bailey no longer owned and occupied the Springfield, Virginia property. Equally, when it was all over, the Williams did.20 The due-on-sale clause therefore operated and required appellants to satisfy in full the accelerated loans secured by the security deeds of trust.21
II. Lien or Encumbrance
Elaborateness having failed, appellants turn to simplicity itself. They point to the FNMA-FHLMC deed of trust language excluding a lien or encumbrance subordinate to the deed of trust from the operation of the due-on-sale clause. The deed of trust note, it is true, comes ahead of any possessory interests or rights of enjoyment, whether held by Mrs. Bailey as grantor or the Williams as grantees, taking precedence in the event of default. Every interest is subordinate to the deed of trust. It is a first lien.
The simple argument has a simple answer. While subordinate to the deed of trust, the right to “enjoy the structure as their home” was not a “lien or encumbrance.” It was not for the purpose of securing an obligation. The deed of trust in favor of First Federal Savings and Loan Association of Arlington securing the note was a lien or encumbrance; the interests of the Williams were not. Rather, in every realistic sense, their interest, regardless of whether, for some purposes, it was real or personal property, was a fee simple, i. e. beneficial, ownership, subject to the security interest created by the first deed of trust securing the note to First Federal Savings and Loan Association of Arlington.22
The overly broad meaning which the appellants seek to attach to “lien and encumbrance” would encompass any interest created in the property. It thereby would cause what was clearly meant as a limited exclusion from the due-on-sale clause applicable in a few cases only to expand so hugely as to swallow-up and extinguish altogether the due-on-sale clause itself. That argument, consequently, fails.
[921]*921In fact, the exception from the triggering of a due-on-sale clause when a subordinated lien or encumbrance was imposed on the property was a requirement of the FHLBB included in its overall authorization of the due-on-sale clause.23 It is absurd to think, as appellants argue, that the provision was meant to take away completely with one hand what the Bank Board was plainly conferring with the other.24
III. Restraint on Alienation
There remain for consideration restraint on alienation and Virginia antitrust attacks launched against the deed of trust in the FNMA-FHLMC form between the Potes, as borrowers, and Washington-Lee Savings and Loan Association (as successor to Atlantic Mortgage Company Division of NBD Mortgage Company), as lender. We turn first to the restraint on alienation contention.25
At the outset we mention, but pass by, the possibility that the Federal government, through appropriate actions of Congress and the proper administrative agency or agencies, has fully preempted, pursuant to the Supremacy Clause, Art. VI, Clause 2 of the United States Constitution, any state regulation of due-on-sale clauses in the loan instruments of federal associations. Glendale Federal Savings and Loan Association v. Fox, 459 F.Supp. 903 (C.D.Cal.1978), partial summary judgment made final, 481 F.Supp. 616 (C.D.Cal.1979); see also Meyers v. Beverly Hills Federal Savings and Loan Association, 499 F.2d 1145 (9th Cir. 1974); First Federal Savings and Loan Association of Boston v. Greenwald, 591 F.2d 417 (1st Cir. 1979); Conference of Federal Savings and Loan Associations v. Stein, 604 F.2d 1256 (9th Cir. 1979), aff’d mem., 445 U.S. 921, 100 S.Ct. 1304, 63 L.Ed.2d 754 (1980). The Court in Glendale held that federal law, and specifically the FHLBB’s autho[922]*922rization, through 12 C.F.R. § 545.6-ll(f),26 of due-on-sale clauses, exclusively governed. California law, the Court concluded, was “inapplicable to Glendale Federal’s loan instruments executed on and after June 8, 1976.” Id. at 912. To like effect, Conference of Federal Savings and Loan Associations v. Stein, 495 F.Supp. 12 (E.D.Cal. 1979), appeal pending; Bailey v. First Federal Savings and Loan Association of Ottawa, 467 F.Supp. 1139 (C.D.Ill.1979).
We pass that simple manner of disposing of the case for several reasons. We by no means wish to intimate that such a solution would be improper, or that, under preemptive federal law, the due-on-sale clause would not be fully operative. Rather, as the case has been presented to us, there would be too many uncertainties, or assumptions necessitated by absence of proof to justify that route. There is another, better marked path which leads to the same result.
The uncertainties as to preemption by federal law are several:
1. The preemption is more evident when the lender is a federally chartered association. While the federal connections of Washington-Lee Savings and Loan Association are, from appellants’ own pleading, evidently substantial, and while the FNMA-FHLMC Uniform Instrument has been employed, still the association is state chartered, and possibly complex questions arise over preemption insofar as its lending activities are concerned. The uncertainty is in no way minimized when one realizes that the original lender, Atlantic Mortgage Company Division of NBD Mortgage Company, as far as the record discloses, had no federal charter or other federal status.
2. The deed of trust was entered on March 15, 1976, prior to June 8, 1976, the effective date of the due-on-sale clause regulations of the FHLBB. There is authority that preemption and associated validation of due-on-sale clauses were extant even pri- or to June 8, 1976,27 although the court in Glendale was careful to observe that the “contention is not before the court on this motion, and the court expresses no view as to its merit.” Glendale, supra, 459 F.Supp. at 907.
3. Whatever the power to preempt may be or may have been, it seems probable that the FHLBB has not sought, in the Virginia denominated FNMA-FHLMC Uniform Instrument form of June 1975 employed in the Pote transaction, to impose on the states conditions with respect to mortgages or deeds of trust which would be in violation of state law. As previously pointed out, the FNMA-FHLMC deed of trust formulated for Virginia transactions specifically makes controlling the law of the jurisdiction in which the property is located.28
It seems at least questionable that the FHLBB intention was to render entirely [923]*923irrelevant provisions of Virginia law governing the legality or illegality of due-on-sale clauses. The form here employed, obviously meant to conform to FHLBB requirements, scrupulously abides by the requirement of Va.Ann.Code § 6.1-330.34 that, if a deed of trust contains an acceleration of payment upon sale or conveyance clause (i. e. a due-on-sale clause), it shall prominently display the legend: “NOTICE: THE DEBT SECURED HEREBY IS SUBJECT TO CALL IN FULL OR THE TERMS THEREOF BEING MODIFIED IN THE EVENT OF SALE OR CONVEYANCE OF THE PROPERTY CONVEYED.”
The Virginia prohibition in Va.Ann.Code § 6.1-330.33 of any prepayment penalty where the homeowner must pay off the loan by virtue of the lender’s “enforcement of the right to call the loan upon the sale of the real property which secures said loan” is paralleled by the FHLBB regulation 12 C.F.R. § 545.8-3(g)(2) forbidding “a prepayment charge or equivalent fee for acceleration of the loan by exercise of a due-on-sale clause.”
Therefore, putting to one side the preemption question, we proceed to inquire whether an inappropriate restraint on alienation, under Virginia law, exists. To do that properly, we must range beyond the specific question of the due-on-sale clause itself. Viewed in isolation, it cannot be said to create a restraint on alienation,29 or if it [924]*924does, it is one validated by the Virginia legislature.30
The due-on-sale clause is but one piece in a larger puzzle. A loan obtained to finance in part the purchase of one’s home, for which one has given security in the form of a deed of trust or mortgage, has a variety of facets. Initially, it is viewed as an arrangement which will run its full course, here 30 years. So long as the homeowner continues to own and occupy the house, he is interested in the protection against call, in the preservation of his right not to pay more than the level monthly payment fixed at the outset, and contemplated to remain constant during the whole 360 month period.
[925]*925But, as time marches on, things may, and frequently do change. Leaving aside, for the moment, the problems associated with changing interest rates, the homeowner may .decide to move, preferring another house, or having been transferred by an employer to another part of the country. He wants to sell. Sometimes ineptly drawn mortgages or deeds of trust make it a breach of contract to sell without the prior consent of the lender.31 The need to obtain the prior consent of another is a text-book example of an unreasonable restraint on alienation.
In such a situation, while the due-on-sale clause may not be directly involved, still there is something amiss in the total scheme for dealing with any acceleration 32 of the otherwise anticipated 30 year obligation. Whenever the thing that is wrong represents an attempted unfair advantage to the lender, the courts, not just in Virginia, but throughout the United States, seek to achieve justice by denying to the usually economically superior lender, with presumably the better bargaining position, other advantages in the package of provisions in the deed of trust concerning acceleration.
Two lower court Virginia cases illustrate the point:
1. Best v. United Virginia Bank/National, in the Circuit Court of Fairfax County, in Chancery, No. 58379, decree dated February 22, 1979. There a deed of trust executed September 25, 1972 contained a flat undertaking by the maker of the note that he would “not assign or transfer the property secured by this deed of trust without prior approval of the noteholder.” The deed of trust called for automatic acceleration of the full principal upon breach of that covenant. The Chancellor ruled that there was a restraint on alienation, and that it was unreasonable, explicitly pointing out, however, that if the lender had “wanted to reserve the right to increase the interest rate . . . the parties could have contracted for such a provision.... ” An appeal to the Virginia Supreme Court is currently pending.
2. Iron Castle Associates v. Wood, in the Circuit Court of the City of Richmond, Chancery No. G-4808-2, decree dated February 26,1981. In 1972, a deed of trust was placed on the property as security for part of the sales price. There was a covenant by grantors: “that they will not transfer the title to the property so long as this deed of trust remains in full force and effect, without the consent of the holder or holders of the two notes, which consent shall not be unreasonably withheld.”
Both cases, consequently, involved a flat restraint on alienation.33 Furthermore, the [926]*926deed of trust in each case antedated the 1974 enactment of Va.Ann.Code §§ 6.1-330.33 and .34. '
The lenders are not favored creatures of the law, at least as compared to borrowers. They must dot the “i”s and cross the “t”s. The due-on-sale clause sometimes evokes strong feelings. E. g. the dissent in Crockett v. First Federal Savings and Loan Association of Charlotte, 289 N.Car. 620, 224 S.E.2d 580 (1976), where the language used includes: “a loan shark’s trap for the unwary borrower,” 289 N.Car. .at 634, 224 S.E.2d at 589, and “sheer extortion,” 289 N.Car. at 642, 224 S.E.2d at 594.
If the interest rates go much higher, the legal profession may have to cede to lenders precedence in Shakespeare’s trenchant line: “The first thing we do, let’s kill all the lawyers.”34
Nevertheless, the lenders have legal rights, too. If they have complied with all requirements of the law, they are entitled to enforce their due-on-sale clauses, for they are simply not restraints on alienation.
In the economics of the moment, the most evident target is obviously the right of the lender to call when, interest rates having risen, it is to its advantage to terminate the loan, and relend the accelerated principal at better rates.35 It is in such contexts of something elsewhere rotten in the State of Denmark that lenders have been denied the right to activate due-on-sale clauses.36
[927]*927That, should not, however, be confused with the situation where nothing else in the package is amiss. Then the due-on-sale clause may be relied on by the lender.37 There is nothing inherently unfair or unreasonable in such a rule. The reason making [928]*928it important that the loan should run its full 30 year course dissipates when the homeowner sells. Then, in the huge majority of the cases at least (lenders, at the outset, having advanced on the security of the house only a portion of the purchase price, a reduction in the principal having occurred through monthly payments from time of original purchase to time of sale, and a usual consequence of inflation being an increase in the value of the residence — Mrs. Bailey sold to the Williams for $79,903.63 premises for which she and her husband three years before had paid $63,831), the proceeds are available and adequate to meet the acceleration.
Inspecting the details of the Pote deed of trust reveals no flaws in facets related to acceleration in the due-on-sale clause or in clauses other than the due-on-sale clause.
It does not require the lender’s consent to a sale. It only permits the lender, at its option, to exercise the due-on-sale clause if there has been a sale, which the Potes, as homeowners, are fully entitled to make without any dishonoring of their word. In case the due-on-sale clause is activated, the resulting acceleration may not give rise to any charge, premium or penalty.38 There is none provided for in the Pote deed of trust in case of a call by the lender.39
As for a prepayment, not accompanying a sale, there is nothing about which the Potes were entitled to complain. A right to prepay in whole or in part at any time was specifically conferred in the note secured by the deed of trust. After the first 5 years of the life of the deed of trust, all or any part of the outstanding principal of the loan could be prepaid without any charge, premium, or penalty, regardless of the source of the funds used for prepayment. During the first 5 years, a charge, not to exceed 1% of the amount by which aggregate prepayments in any year were in excess of 20% of the original principal amount was collectible, if, but only if, the source of the prepayment funds was a lender to the Potes other than the note-holder (originally Atlantic Mortgage Company Division of NBD Mortgage Company, and, by succession, Washington-Lee Savings and Loan Association).40
Those penalties fell comfortably within the requirements of Va.Ann.Code § 6.1— [929]*929330.27 41 in force when the deed of trust and note were executed on March 15, 1976.42 That statute permitted a penalty of one percent of the entire unpaid principal balance (or $440) rather than the lesser amount of eighty percent thereof, to which the prepayment penalty allowed by the note is, in fact, limited.43
Even if the Pote deed of trust had transgressed the 1% limitation on prepayment penalties, that could hardly have been seized upon as a basis for invalidating the due-on-sale clause. The statute specifically provides that any prepayment penalty vio-lative of it “shall be unenforceable as to the amount in excess of 1% of the unpaid principal balance.” The specific dealing with the consequences of a breach of the statute forecloses the imposition of another, unspecified sanction. Fourth National Bank of N.Y. v. Francklyn, 120 U.S. 747, 756, 7 S.Ct. 757, 762, 30 L.Ed. 825 (1887):
‘The liability and the remedy were created by the same statute. This being so, the remedy provided is exclusive of all others. A general liability created by statute, without a remedy, may be enforced by common law action. But where the provision for the liability is coupled with a provision for a special remedy, that remedy, and that alone, must be employed.’
Thus, the due-on-sale clause became available to the lender upon the Potes’ sale to the Saltos.44
IV. Antitrust Law Contention
Finally, we must briefly attend to the attenuated argument that a due-on-sale clause, without more, ipso facto violates the Virginia antitrust law.45 In the first place, there is no evidence of any kind to suggest that adoption of the due-on-sale clause by the lenders to the Potes proceeded from a conspiracy or other combination. Each home lender, acting on its own, was quite capable of perceiving the benefits to it flowing from the due-on-sale clause and of [930]*930instituting, without the cooperation or assistance of others, a uniform practice of requiring acceleration of the loan upon a sale of the premises.
In essence, a due-on-sale clause only concerns a contractual undertaking as to when one must pay one’s duly incurred debt. Its restraining effect on trade would be no more than that imposed on a homeowner and his real estate, for example, if someone were to reduce an obligation of his to judgment, and thereupon immediately should seek to realize by forcing sale of the premises. So customary a “restraint” would hardly fall within the ambit of the antitrust law without quite explicit language, none of which appears in the Virginia statute. Collection of a debt in and of itself does not constitute an antitrust violation. D. R. Wilder Mfg. Co. v. Corn Products Refining Co., 236 U.S. 165, 35 S.Ct. 398, 59 L.Ed. 520 (1915); Bruce’s Juices, Inc. v. American Can Co., 330 U.S. 743, 67 S.Ct. 1015, 91 L.Ed.2d 1219 (1947). The Virginia antitrust law is to be “applied and construed ... in harmony with judicial interpretation of comparable federal statutory provisions.” Va.Ann.Code § 59.1-9.17.
Furthermore, the Virginia antitrust act excludes from its operation conduct vetted by an administrative agency, state or federal.46 We have already observed that, while Washington-Lee Savings and Loan Association is state-chartered it, in the circumstances of this case, is intimately related to activities of FNMA, FHLMC and the FHLBB, the deed of trust having been developed and approved by those federal agencies. Washington-Lee Savings and Loan Association is a seller servicer for the FHLMC, a federally related lender. The FHLMC regularly purchases interests in mortgages and deeds of trust.47 Manifestly the several federal agencies have the authority to consider the anticompetitive effect of due-on-sale clauses.
Of course, it could be argued that Washington-Lee Savings and Loan Association is state-chartered, and no Virginia agency comparable to the FHLMC has addressed at all the question of the anticompetitive effect, if any, of due-on-sale clauses. We pass the question of why the Virginia antitrust law, if the legislature wanted to differentiate on the basis of status as federal agency contrasted to status as state agency, was drafted purely in terms of conduct. Nevertheless, in interpreting the Virginia antitrust statute, it is not reasonable to infer that the legislature intended to allow federally chartered institutions to operate with a distinct competitive advantage over essentially identical Virginia institutions.48 [931]*931It is a bizarre reading of an antitrust statute which leads to imposition of a palpable competitive disadvantage.
Moreover, there is also an exclusion from the reach of the Virginia antitrust law for conduct that is authorized, regulated, or approved by a Virginia statute. Va.Ann. Code § 59.1-9.4(b)(l). While appellants strenuously contend that Va.Ann.Code § 6.1-330.34 calling for prominent display of a notice that there is a due-on-sale clause whenever one appears in a mortgage or deed of trust is not an approval, we conclude that the manifestly broader coverage of “authorized, regulated or approved” suffices to insulate due-on-sale clauses from the Virginia antitrust law, at any rate when considered solely in and of themselves and not in connection with other activities.
Thus, the due-on-sale clause was fully enforceable against the Potes.
Judgment in all of the Consolidated Cases AFFIRMED.