This is a suit by E. Power Conway, hereinafter called plaintiff, against Hattie L. Mosher, hereinafter called defendant, and others, to enforce certain paving liens alleged to have been acquired by plaintiff by virtue of a subrogation and assignment. The property involved is lots 6 and 7 in block 14, East Evergreen addition to the city of" Phoenix, which adjoins Fifth and Culver Strеets in that city, and the facts, with one possible exception, are not in dispute, and may be stated as follows:
Defendant Mosher was the original owner of the lots. At some time between the years 1913 and 1919, certain street improvements were made on Fifth Street under the provisions of chapter 13, title 7, Revised Statutes of Arizona 1913 (paragraph 1953 et seq., Civ. Code), known as the act of 1912. Under this act separate bonds for the amount of the assessments were issued against each of the said lots. At a later period Culver Street was improved under the provisions of chapter 144, Session Laws of 1919, known as the act of 1919. Under this act separate assessments were made against each of thе two lots *466 and bonds issued against the funds created by the assessments levied upon all of the property in the district assessed. At a later period another improvement was made on Fifth Street under the act of 1919, but the lien for that improvement attached only to lot 7, the assessment against lot 6 having been paid in cash. Defendant made payment of thе assessments for the first improvement for a number of years, but finally made default in payment, and. the holder of the bonds caused the city treasurer to make separate sales of said lots in accordance with the provisions of the act of 1912. At said sale both the lots were purchased by Coit I. Hughes, subject to the right of redemption authorized under the act.
Defendant Mosher thereafter made default in payment of the assessments levied for the second improvement and the superintendent of streets sold lots 6 and 7 for such assessments, in the manner provided by the act of 1919. One Maurice F. Fox was interested in the bonds issued for this improvement and purchased the lots at that sale, receiving the usual certificates of sale, but since the lots had previously been sold to Hughes for a default of the first assessment, Fox, prior to the expiration of the right to redeem from the first sale, paid to the city treasurer for redemption from the Hughes sale the amount bid at the sale by the latter, plus the statutory penalty. Hughes had sought to prevent the sale under the second improvement, but this court held in the case of
City of Phoenix
v.
Hughes,
*468 •• The first question involved in this appeal is-the applicability of the right of subrogation to the redemptions made by Fox from the various sales above set forth. ■ Subrogation is the substitution of another person in the place of a creditor, so that the person in whose favor it is exercised succeeds to the rights of thе creditor in relation to the debt. It is a creature of equity, and was adopted from the Roman and not from the common law. Its purpose is the prevention of injustice and is the mode which equity adopts to compel the ultimate payment of a debt by-one who in justice, equity and good conscience ought to pay it. It rests upon the prinсiple that substantial justice should be attained, regardless of form. While the nature and grounds of subrogation are very clear, the difficulty arises in its application to the innumerable complications of business, and no general rule can be stated which will afford a test in all cases for its application. Whether it is applicable or not dеpends upon the particular facts and circumstances of each case as it arises. This remedy has been applied much more extensively in American than in English jurisprudence, and the modern tendency is to extend its use rather than to restrict it. While it was originally limited to transactions between principals and sureties, it now has a very liberal application, its principle being modified to meet the circumstances of cases as they arise. The general rule of equity which is probably most often invoked in cases of subrogation is that he who seeks equity must do equity, and subrogation can only be granted when an equitable result will be reached. It involves three elements: (1) A valuable right; (2) a person who owns the right; and (3). a person who seeks to be substituted in that ownership. There must exist a claim or obligation against the debtor; an original *469 right to that claim on the part of him in whose place substitution is sought, and some right belonging to him who seeks the substitution which will be protected thereby. So when one, being himself a creditor, pays another creditor, whose claim is preferable to his, it is held that the person so paying is subrogated to the rights of the other creditor. Fox was entitled to redeem from Hughes under subdivision (g), paragraph 1973, Revised Statutes of Arizona 1913 (Civ. Code), which reads as follows:
“Subdivision g. A redemption of the property sold may be made by the owner of the property, or any party in interest, within twelvе months from the date of purchase, or at any time prior to the application for a deed, as hereinafter provided. Redemption must be made in lawful money of the United States, and when made to the city treasurer he must credit the amount paid to the person námed in his certificate, and pay it on demand to him or his assignee. ’ ’
It seems clear to us, according to the principles above stated, that when Fox, in order to protect his lien under the second improvement, redeemed from Hughes’ purchase under the first sale, he was subrogated to the rights which Hughes had acquired by his purchase against the land involved. These rights are set forth in subdivisions (f) and (i), paragraph 1973, Revised Statutes of Arizona 1913 (Civ. Code), as follows:
“Subdivision f. Immediately on the sale, the purchaser shall become vested with a lien on the property, so sold to him, to the extent of his bid, and is only divested of such lien by the payment to the city treasurer of the purchase money, including costs herein provided for, with interest thereon at the rate of one per centum per month from the date of sale.”
“Subdivision i. If the property is not redeemed within the time allowed by subdivision (g) hereof for *470 its redemption, the said treasurer, or his successor in. office, upon application of the purchaser or his assignee, must make to said purchaser or his assignee, a deed to the property. ...”
Taking these two sections together and the general right of subrogation, we are of the opinion that when defendant Mosher redeemed from the sale to Fox, the property was still subject to the lien acquired by Hughes under the first sale, and that such lien had passed to Fox by reason of his redemption.
The question as to what, if any, rights Fox gained by his redemption from the third sale to Skousen is а little more difficult. We think, however, that the principles of equity would also require that we hold there was a subrogation in that case. It is true, of course, that a mere volunteer,- who has no rights to protect, may not claim the right of subrogation, for one who, having no interest to' protect, without any legal or moral obligation to pay, and without an аgreement for subrogation or an assignment of the debt, pays the debt of another, is not entitled to subrogation, the payment in his case absolutely extinguishing the debt. But when one, to protect his own interest, pays a debt which he honestly believes must be paid to accomplish that purpose, we think, by the fundamental principles of equity, he cannot bе held to be a mere volunteer, even though it may afterwards appear the payment was unnecessary: In the case at bar, since Fox’s right under his own original purchase had been extinguished by the redemption of Mosher, and in view of the fact that he held Hughes’ interest as a redemptioner and not as a purchaser, a question as to whether his rights were superior to those of Skousen under the third sale might have arisen. Such being the case, we think that he was justified in redeeming *471 from the Skousen sale for the protection of his rights under the Hughes sale, even though it might ultimately be determined as a matter of law that such redemption was not necessary. Defendant Mosher is not equitably in a position to cоmplain of this, for she is not injured in the eyes of the law because she is compelled to pay the amount of the assessments levied on the property to B rather than to A in order to release it from the Skousen lien.
We hold, therefore, that Pox was subrogated to the right of Hughes and Skousen in so far as he had redeemed from the respective sales. It is urged, however, that the record shows that Pox did not himself redeem from the Skousen sale, but that the redemption was made by plaintiff at a time when he had no interest in the premises and was thus a mere volunteer. If this be true, of course the Skousen lien was extinguished when the redemption was made. We think, however, that the part of the record cited by defendant to establish this, while susceptible of the interpretation that plaintiff instead of Pox did pay the Skousen claim, is not conclusive upon that point. The trial court found that Pox himself paid the Skousen claim, and in view of the whole record we cannot say that the finding was unjustified.
But, says defendant, even assuming that Pox was subrogated to the rights of both Skousen and Hughes, his claim was not the subject of an assignment. We think that under our decisions the contention cannot be sustained. The right of Pox was certainly a chose in action with survivorship, and in the absence of some express reason to the contrary these choses are always assignable.
Deatsch
v.
Fairfield,
“ ... The said warrant, assessment and diagram, with the affidavit of demand and non-payment, shall be hеld prima facie evidence of the regularity and correctness of the assessment, and of the prior proceedings and acts of the superintendent of streets and legislative body, upon which said warrant, assessment and diagram, are based, and like evidence of the right of the plaintiff to recover in the action. ...”
This applies to the Hughes sale, and а similar provision appears in the act of 1919, which covers the Pox and Skousen sales. Under these provisions a proof of the warrant, assessment, diagram, and affidavit of demand and nonpayment makes a
prima facie
case of the validity of the assessment.
Ainsworth
v.
Arizona Asphalt Paving Co.,
We come then to the assignment which is most strongly stressed by defendant both in her brief and on oral argument. It is that the statute of limitations had run against thе action. This requires a consideration of what the rights and limitations of plaintiff were under his subrogation to Hughes and Skousen. The general rule is that a person having an interest in property who pays off an encumbrance in order to protect his interest is subrogated to the rights and limitations of the person paid.
Porter
v.
Title Guaranty & Surety Co., 17
Idaho 364,
The judgment of the superior court of Maricopa county is reversed and the case remanded, with instructions to dismiss the action.
McALISTER and ROSS, JJ., concur.
