The case is here on rehearing after decision by the district court of appeal. The facts of the case and the point presented in support of the appeal are as follows :

“The appeal is from a judgment based upon an order sustaining defendant’s demurrer to the amended complaint of plaintiffs.

“As far as necessary to quote said complaint is as follows:

11 ‘That on or about the 5th day of March, 1920, the defendant was a real estate broker, duly licensed as such, residing and having his principal place of business in the City of Exeter, County of Tulare.

“ ‘That on or about the said last mentioned date the said defendant as such broker was the real estate agent and broker, by writing duly appointed for the sale of certain real property situate in the County of Tulare, State of California, commonly known as the Rockford ranch and that by the terms of the agency agreement, as aforesaid, as plaintiffs are informed and believe, the said defendant was to receive from the owner of said ranch as compensation for the selling of the same as such real estate broker, and the owner of said ranch in said agency agreement, 'did agree to pay as such compensation to defendant, as such real estate broker, a commission of five per cent, to be computed upon the' total selling price.

“ ‘That on or about the 5th day of March, 1920, the said defendant as broker and agent for the sale of said real estate, as aforesaid, entered into an agreement with these plaintiffs whereby the defendant agreed that if the plaintiffs, or either of them, would find anyone interested in the purchase of such a ranch, to whom the said defendant would be able to negotiate a sale thereof, or would introduce to said defendant anyone to whom the said defendant would be able to negotiate a sale thereof, he, the said defendant would pay unto the plaintiffs a sum of money equal to two-thirds of the gross commission which the said defendant might receive on account thereof.

“ ‘That thereafter these plaintiffs relying on their said agreement with defendant did procure and produce to defendant a prospective purchaser for the said real property to whom the said defendant did thereafter and as such agent and broker negotiate a sale of said real property, and on account of which sale the said defendant did on or about the 26th day of October, 1920, receive, as a part of the compensation and commission aforesaid, the sum of five thousand seven hundred and fifty ($5,750) dollars.’

“Then follows an allegation of a demand upon defendant for the payment of their proportion of said commission and his refusal to pay any portion of it, and the complaint proceeds :

“ ‘That neither of said plaintiffs are or ever have been a real estate broker or real estate salesman within the meaning of the Act of the Legislature of the State of California defining a real estate broker and salesman, approved May 27th, 1919, and that neither of said plaintiffs have at any time sold or offered to sell, bought or offered to buy, or negotiated the purchase or sale or exchange of real estate, or negotiated loans on real estate, leased or offered to lease, rented or placed for rent, or collected rent from any real estate or improvements thereof for others either as a whole or partial vocation, and that neither of said plaintiffs have ever at any time or in any manner acted as a broker or salesman or agent for the purchase, sale or exchange of real estate of or for another, and that at no time other than the time herein mentioned have the plaintiffs or either of them ever engaged for a compensation to find, procure or introduce to any person, another person, firm, or corporation to whom or with whom a contract of sale, purchase, or exchange might be made.’

“It is conceded that the demurrer to the complaint raised the point and was decided upon the ground that plaintiffs by their allegations disclosed an attempt to induce the defendant to violate an express mandate of law and that the enforcement of their demand would be against public policy.

“Sec. 1 of said real estate Act (Stats, of 1919, p. 1252), provides: ‘It shall be unlawful for any person, copartnership or corporation to engage in the business, or act in the capacity of a real estate broker, or a real estate salesman within this state without obtaining a license therefor.’

“Sec. 2 provides: ‘A real estate broker within the meaning of this act is a person, copartnership or corporation, who for a compensation, sells, or offers for sale, buys or offers to buy or negotiates the purchase or sale or exchange of real estate . . . for others as a whole or partial vocation. A real estate salesman within the meaning of this act is one who for compensation is employed by a licensed broker to sell, or offer for sale, or to buy, or offer to buy, or to negotiate the purchase or sale or exchange of real estate, . . . as a whole or partial vocation.’

“Section 17 provides the penalty for acting as a broker or salesman without license and Section 18 is as follows: ‘It shall be unlawful for any licensed broker to pay a commission for performing any of the acts herein specified to any person who is not a licensed broker, or a licensed salesman.’

“Section 20 provides: ‘No person, copartnership, or corporation engaged in the business or acting in the capacity of a real estate broker or a real estate salesman within this state shall bring or maintain any action in the courts of this state for the collection of compensation for the performance of any of the acts mentioned in Section Two hereof without alleging and proving that such person, copartnership or corporation was a duly licensed real estate broker or real estate salesman at the time the alleged cause of action arose.’

“As to the validity of said Act no question is raised by appellants. Indeed, the Supreme Court has recently upheld it as a legitimate example and exercise of the police power of the State. Riley v. Chambers, 181 Cal. 592 [8 A. L. R. 418, 185 Pac. 855 ], It was declared that even lawful and useful occupations may be subjected to regulation in the public interest and that the proper test as to whether the Legislature has exceeded its authority is whether the purpose and effect of the regulation ‘go no further than throwing reasonable safeguards in the public interest around the exercise of the right’; and the conclusion was reached that ‘the single primary purpose of the Act is to require of real estate brokers and salesmen that they be honest, truthful and of good reputation’ and that said legislation embodies a legal and reasonable scheme for that purpose. It is conceded that the measure was enacted for regulation and not for the purpose of revenue, and it is to be observed that the license fees are of nominal consideration and are imposed only for the purpose of defraying the expense attached to the administration of the law. But it is the claim of appellants that the act which they were employed to perform does not bring them within the purview of a broker or salesman as these terms are defined in said statute.” (Real Estate Brokers Act [Stats. 1919, p. 1252].)

With this contention as a basis, it is argued that the complaint does state a cause of action and was, therefore, proof against demurrer. We are in accord with this contention.

The complaint does not on its face show that plaintiffs were engaged in the business, or acting in the capacity, of a real estate broker or real estate salesman when they performed the act for which they seek compensation. In order to come within the definition of real estate broker or real estate salesman a party must “sell or offer to sell, buy or offer to buy, or negotiate the purchase or sale or exchange of real estate ...” By the terms of their contract as pleaded the plaintiffs were only required “to find” or “to introduce” to defendant a person “interested” in purchasing and who subsequently did purchase, in order to recover the sum agreed by defendant to be paid to them. By the terms of the contract, as set forth in the complaint, the “negotiation” of the sale was to be left entirely to defendant. Plaintiffs’ only duty was to produce a • prospective purchaser. This, the complaint alleges, they did. The complaint expressly negatives any further act or acts on the part of plaintiffs which might tend to bring them within the scope of the definition, denying specifically and in practically the identical words of the statute itself that they “sold or offered to sell, bought or offered to buy, or negotiated the sale ... of real estate ...” The truth of this allegation is admitted by demurrer. The acts of plaintiffs, therefore, as alleged in the complaint fall short of those defined by the Beal Estate Brokers Act as constituting either a real estate broker or real estate salesman.

In Schomig v. Keiser, 189 Cal. 596 [ 209 Pac. 550 ], it was held that any employment by any person of another to collect payments on an agreement which had already been negotiated did not make the party a real estate broker, or real estate salesman. By a parity of reasoning the employment of any person to perform an act preceding the negotiation of a sale does not, in the absence of subsequent assistance rendered in the ultimate negotiation of the sale constitute the party thus employed a real estate broker, or real estate salesman.

It may be that upon a trial of the ease the defendant may be able to prove that plaintiffs did in fact actually assist in negotiating the sale. If he can do this, it is a good defense. But for the purpose of passing upon a demurrer it is not permissible to predicate a ruling upon the presumption that plaintiffs did actually assist in the subsequent negotiations which ultimately resulted in the sale.

The question of whether or not a single act can be held to constitute a “partial vocation” need not, under the view which we have taken of the facts pleaded in the plaintiffs’ complaint, be decided.

Moreover, a consideration of that question is immaterial in this particular case by reason of the provisions of section 18 of the Beal Estate Brokers Act (Stats. 1919, p. 1259), which provides that “it shall be unlawful for any licensed broker to pay a commission for performing any of the acts herein specified to any person who is not a licensed broker or a licensed salesman.” In view of this section it follows as a matter of course that although it be conceded that it «was but a single act, nevertheless if the plaintiffs’ participation in the transaction in question was in fact that of a salesman or broker, as defined by the act, then, of course, payment for the service rendered in that behalf could not be enforced under the provisions of this section. It, therefore, makes no difference whether a single act does or does not amount to a partial vocation.

Judgment reversed, with instructions to the court below to overrule the demurrer with leave to defendant to answer within a designated time.

Kerrigan, J., Seawell, J., Lawlor, J., Myers, J., Wilbur, 0. J., and Waste, J., concurred.