delivered the opinion of the court.
The judgment below was based by the trial judge upon the following statement:
“This is an action to recover damages based upon the nullity of a foreclosure proceeding instituted in the year 1913 by Agapito del Toro, the defendant in this ease, against the plaintiff Isaac Can-delario and his wife wherein the first named acquired at public auction in payment of a mortgage credit and other amounts claimed the property described in the complaint filed. Said mortgage foreclosure proceeding was instituted in this court and the transcript of the evidence is .No, 6908. .
“The plaintiff maintains that the order of sale in the foreclosure *961proceeding is void, among other reasons, because rendered by a court that did not acquire jurisdiction over the person of the defendant. He bases this argument on the ground that the summons was served by a private person who did not state in the body of the affidavit that he was over 18 years of age. A literal copy of the return of the service of .such summons follows:
“ ‘I, José F. Franco Valdés, over 18 years of age, resident of San Juan and without interest in this suit, state under oath: That I received the present summons and a copy of the petition on which it was based at 2-p. m. this 23rd day of September and that I personally served defendant Francisca Suarez, wife of the other defendant Andrés Isaach Candelario, who was the only person in charge of the property referred to in the said summons, consisting: of the house described in the complaint, domicile of the defendant spouses. That I showed her this original and explained its contents, serving on her a copy thereof and of the petition. I also requested her to pay the plaintiff the amounts claimed within thirty days from this date, warning her that in case she failed to do so the mortgaged property would be sold at public auction.
‘ ‘ ‘ The foregoing service was made this day at 3:30 p. m. San Juan, September 23, 1913.' — (sd) José F. Franco y Valdés. Subscribed and sworn to before me by José F. Franco Valdés, of age, single, resident of San Juan, whom I personally know, this 24th day of September, 1913. — (sd.) C. Marrero, Secretary, District Court. — By Francisco Negroni, Assistant Secretary, District Court. ’
“It will be seen that while the person who made the service stated that he was over 18 years of age, he did not make this statement under oath, thereby vitiating all subsequent proceedings. This is a question that has been already decided by our Supreme Court in various eases, among them Andino v. Knight, 20 P.R.R. 185, and Quintana et al. v. Aponte 26 P.R.R. 169, and, more particularly because of their similarity to the present, the cases of Buonomo v. Succession Juncos, 28 P.R.R. 380, and López et al. v. Quiñones, decided April 10, 1922.
“In deciding this same question in the case of Buonomo v. Succession Juncos, supra, in connection with a summons served in the same manner as here, the Supreme Court said:
“ ‘When the return of a summons served by a person other than the marshal does not show that such person was more than eighteen years old at the time and had no interest in the suit, the court does not acquire jurisdiction over the person said to have *962been, summoned and a judgment entered on the basis of such summons and a sale made in execution of such judgment are null and void.’ ”
“From the pleading of the plaintiff himself it is inferred that the property in dispute passed to a third person by virtue of a deed duly recorded in the registry of property, and this is also shown by the evidence introduced. Wherefore, intending as we do to decide this case in favor of the plaintiff, the restoration of the .property as prayed for becomes impossible and in lieu thereof the <• court has decided to adjudge the value of the property and the fruits thereof from the time the’ plaintiff took possession.
•“The court is of the opinion that the property has been shown .by the evidence to be worth $3,000 and that the fruits thereof ¡should be estimated at $26 monthly from the time defendant Aga-pito entered into possession of the property until the judgment to be rendered herein is definitely complied with.
“In view of all the foregoing the court is of the opinion that it should, and it does, sustain the complaint filed, and directs the defendant to pay to the plaintiff the sum of $3,000 together with the mesne profit at the rate of $26 a month from November 24, 1913, until the payment in full of the amount of this judgment.”
Appellant says—
“1. — That the court erred in sustaining the complaint.
“2. — That the court erred in overruling the demurrer that the complaint does not state facts sufficient to constitute a cause of action.
"3. — That the court erred in allowing as mesne profits the sum of $26 monthly until the date of payment.
“4. — The court erred in mulcting the plaintiff in costs.”
The argument under the first assignment is in substance that the only grounds of absolute nullity specified in the complaint are the defective service of the demand for payment as made upon the wife of the mortgagor and the total absence of any service upon the mortgagor in person; that in the case of Buonomo v. Juncos, 28 P.R.R. 380, and other cases cited by the trial judge (except that of Andino v. Knight, 20 P.R.R. 185) there was no certificate as to the age of the person who made the service; and that section *9633 of the Law of Affidavits, Compiled Statutes, sec. 17, reads in part as follows:
“Sec. 3. — The affidavit or declaration of authenticity shall be drawn in the following form:
“Sworn to and subscribed before me, by_(name, age, trade or occupation and residence), personally known to me_”
It is true, as pointed out by appellant, that this court has held that the fact as to age may he shown independently of the affidavit of service. But such showing ordinarily should he made hy evidence aliunde adduced at the trial, thus affording an opportunity for cross-examination if the evidence be oral, or for objection if documentary. In the absence of anything more persuasive than a prescribed form for the jurat, and in so far as the service of a demand for payment in summary foreclosure proceedings is concerned, we are constrained to hold that a bare recital by the notary or clerk before whom the affidavit is made can not be accepted as the equivalent or as a satisfactory substitute for the sworn statement of the affiant.
Nor do we deem it necessary to follow appellant in an equally unsuccessful effort to establish the proposition that service upon the wife, without a personal demand upon the husband, is all that is required in the summary foreclosure of a mortgage upon community property.
The theory of the second assignment seems to be that plaintiff was obliged to make some sort of a tender in accordance with sections 1271, 1274 and 1275 of the Civil Code, but without any definite indication as to the exact nature of the omission in question. Obviously the sections relied upon refer to voidable contracts rather than to void judicial sales, and do not require a mortgagor to pay the amount due- under the mortgage as a condition precedent to a decree establishing the absolute nullity of the foreclosure proceedings for want of jurisdiction.
The contention that the complaint alleges the value of *964the property in the present tense as of the time of filing, instead of the value at the time of conveyance by defendant, is somewhat more specific, but equally untenable. The gist of the action is the nullity of the foreclosure proceeding for want of jurisdiction. The value of the property disposed of by defendant is at most a matter affecting the measure of damages. The property was sold by defendant in 1917 and the complaint was filed in 1921. The value of the property at the time of the sale thereof by defendant was a matter peculiarly within his own knowledge, and in view of the short period of time intervening between the two dates the failure to specify the value at the moment of transfer does not .appear to be a serious matter. In any event the defect, if it be a defect, can. hardly be regarded as a complete failure to state a cause of action.
This becomes even more apparent if we consider the question of variance, which is discussed at some length in the brief for appellant. At the trial there was no proof of present value beyond the introduction in evidence of the deed executed by defendant; and the purchase price named therein was adopted by the court below as the basis for its judgment.
No objection whatever was made to the admission of this instrument; and the value of the property at the time of such conveyance, in the absence of any showing to the contrary, would be presumed to have continued without appreciable change for a reasonable period. Any enhancement in value subsequent to that date, in the absence of any evidence thereof, can not prejudice defendant; and any decrease can not in any event, and under defendant’s own theory as to the proper measure of damages, inure to his benefit or advantage. In the total absence of any intimation of surprise in the court below we need not go further into the merits of appellant’s argument on this point, nor again repeat what has been reiterated from time to time in a uniform series of more or less recent decisions by this court *965in regard to tlie futility of raising such questions for the first time on appeal.
The third assignment is based primarily upon section 1274 of the Civil Code, already referred to, which reads as follows:
“See. 1274. — Whenever a person, who is obliged by a declaration of nullity to return a thing, can not return it because it has been lost, he must return the fruits collected and the value which the thing had when lost, with interest from the same date.”
The contention merely serves to illustrate and to emphasize the danger of an indiscriminate application of the code provisions governing the rescission or annulment of existing contracts to revendicatory actions for the recovery of property sold at a judicial sale alleged to have been void ab initio because of jurisdictional defects. In a case of this kind plaintiff is entitled to recover from defendant, as a possessor in bad faith, the property together with the rents and profits, or, as damages and in lieu thereof, an equivalent in money if the property has passed into the hands of an innocent purchaser. To adopt the theory of appellant would mean that a mortgagee by false averments in his application for a summary foreclosure, and by resorting to the simple expedient of an immediate transfer or of permitting a third person to buy the property at the public sale, can first deprive the mortgagor of his property without a hearing as to any matter not enumerated as a defense in the Mortgage Law;' and then oblige him to accept instead of the rents and profits accruing from real property, interest at the legal rate of 6 per cent per an-num upon the value thereof at the time of the sale. We are unwilling to impute to the framers of the Civil Code an intention to enable an unscrupulous or- careless mortgagee, who elects to institute summary foreclosure proceedings, thus to avoid the risk and evade the responsibility imposed upon him by the express terms of the Mortgage Law.
*966It is also suggested that no allowance or deduction was made to cover expenses incurred in connection with the property, especially in the matter of taxes, which at least, it is urged, may be presumed to have been paid by defendant. Conceding for the sake of argument that the doctrine of Arvelo v. Bank, supra, cited by appellant in support of his contention, is applicable to city property, and that the burden was upon plaintiff to show not only the amount of rental, but the net returns, and that in the absence of any evidence as to cost of maintenance and repairs or sums paid for taxes a liberal allowance sufficient to cover any hypothetical maximum in this regard should be made, — yet we find no satisfactory ground upon which to base a modification of the award as made by the trial judge. The rate of $26 per month represented the rental received for so much of the mortgaged premises only as was not occupied by the mortgagor and his wife and the evidence shows that rents have continuously increased in the immediate neighborhood since the date of foreclosure. It also appears that the house was a new one. In the circumstances it is safe to assume that the rental value of the apartment in which plaintiff and his wife lived, which was not included in the monthly rate adopted by the court below, was more than enough to compensate defendant for any taxes paid or expenditures incurred by way of maintenance.
The proposition involved in the fourth assignment is submitted by appellant as a corollary to the conclusions reached in the brief with reference to the matters already discussed herein. It will suffice to say therefore that we are not disposed to extend the doctrine of López v. Quiñones, supra, also cited by appellant in this connection, to cover the facts of the instant case, and that we find no abuse of discretion on the part of the trial judge in awarding the costs to plaintiff.
The judgment appealed from must be
Affirmed.
*967■ Chief Justice Del Toro and Justices Wolf, Aldrey and Franco Soto concurred.