ORDER AND JUDGMENT
TERRENCE L. O’BRIEN, Circuit Judge.
Timothy Hoiles, a Colorado resident, and Joseph Alioto, a California attorney, entered into a written contingency attorney fee agreement (Fee Agreement or Agreement). Section 6147(a)(3) of the California Business and Professions Code requires contingency fee agreements to contain, inter alia, “[a] statement as to what extent, if any, the client could be required to pay any compensation to the attorney for related matters that arise out of their relationship not covered by their contingency fee contract. This may include any amounts collected for the plaintiff by the attorney.” The Fee Agreement did not contain a “related matters” statement. In our most recent decision (this is the third appeal in this case), we concluded § 6147(a)(3) did not require a “related matters” statement when in fact there are no related matters arising out of the attorney-client relationship not covered by the parties’ contingency fee agreement. See [845]*845Alioto v. Hoiles, 341 Fed.Appx. 433, 441 (10th Cir.2009). However, because the parties disputed whether related matters existed, we remanded to the district court to decide the issue in the first instance. Id. at 441-42.
The district court identified at least one related matter and therefore determined the absence of a “related matters” statement in the Fee Agreement rendered it voidable at Hoiles’s option. See Cal. Bus. & Prof.Code § 6147(b) (“Failure to comply with any provision of [§ 6147(a) ] renders the agreement voidable at the option of the plaintiff, and the attorney shall thereupon be entitled to collect a reasonable fee.”). We agree there was a related matter (but not the one identified by the district court) and thus the Agreement was voidable. We also agree Hoiles did not ratify the Agreement prior to voiding it. The jury’s quantum meruit verdict was correctly reinstated.
I.BACKGROUND
The historical and procedural facts are well known to the parties and have been reported in prior decisions of this Court and the district court.1 We repeat them only as necessary and then only briefly.
In 2001, Hoiles, his ex-wife, and two daughters owned 667,361.50 shares of stock in Freedom Communications, Inc., a closely-held California media corporation started by Hoiles’s grandfather. (We will refer to shares owned by the ex-wife and daughters as the “Family Shares.”) Hoiles decided he wanted out of Freedom with the ability to sell his shares for a fair price (market value).2 To that end, Holies sought out Alioto to represent him and specifically requested the representation be on a contingency fee basis. The two entered into a simple contingency fee agreement, which reads:
RE: Freedom Communications Dear Tim,
This letter sets forth the bases upon which my firm will represent you in the Freedom Communications matter.
1. A $500,000 non-deductible non-refundable retainer, which has already been paid.
2. Fifteen percent (15%) of anything recovered before the filing of a complaint; 20% of anything recovered after the filing of a complaint but before the commencement of the trial; and 25% of anything recovered after the commencement of the trial. (As I said at our meeting, these percentages are lower than my customary charges because some of the recovery will necessarily include ownership that you already have.)
3. The reimbursement of out-of-pocket expenses, which include such items as transcripts, depositions, first-class travel and accommodation, photocopying, telephone, Westlaw time, etc. In connection with these costs, you have already advanced $100,000 which will be deposited in a cost fund [846]*846account for your benefit, and which will be used to finance the costs as they are incurred. We shall send you a monthly statement of the costs drawn from the account. You agree to maintain this cost fund at a level of $50,000. At the conclusion of the case, anything remaining in the cost fund will, of course, be returned to you.
4. I shall be allowed to hire counsel to assist me in the prosecution of the case. Any additional counsel will not increase the amount of your fee, however, costs may be proportionately greater.
5. If you withdraw from or dismiss the case against my recommendation, you will pay a reasonable attorney fee based upon $1,000 an hour for my time and $500 an hour for the time of my co-counsel.
6. The retainer, expert fees and costs used in the prosecution of the case will not be deducted from any recovery before the application of the contingency in Paragraph 2.
7. Any expert hired in this case will be paid directly by you. However, I will choose the expert and negotiate a fee on your behalf.
8. You have the sole authority to settle the case on your behalf. However, you will not unreasonably withhold your consent to settle the case on my recommendation. If you unreasonably withhold your consent to settle the case for an amount I believe to be reasonable in all of the circumstances, I shall be allowed to withdraw from the case and paid in accordance with Paragraph 5.
I am obliged to state that this agreement is by negotiation and not otherwise set or established by law, and that I am self-insured.
If you agree to the terms of this retainer, please sign in the lower left-hand space provided for your signature, retain a copy of this agreement for your files, and return the original to me.
It will be an honor and privilege to represent you in this important litigation.
(Joint App’x Vol. I at 85-88.)
Over the next two and a half years a “carrot and stick”3 strategy was employed to attain Hoiles’s goal of achieving liquidity for his shares. It was devised and implemented by Alioto and the “posse.”4 The “carrot” involved educating the shareholders as to the true value of their stock if it could be more freely traded. The “stick” was a complaint against certain shareholders alleging a violation of California’s antitrust law and breach of fiduciary duty. Alioto sent a copy of the draft complaint to all shareholders; Hoiles frequently threatened to file it should the shareholders continue to thwart his desire to be bought out at a fair price.
The strategy met with some success— Freedom offered to purchase Hoiles’s shares for $100 per share, the highest offer ever received by a shareholder. Hoiles rejected the offer and further negotiations eventually broke down. Nevertheless, in October 2002, Freedom’s Board created a Special Committee to evaluate [847]*847options for providing liquidity for Freedom shares, including a sale or merger of the company and recapitalization. Ultimately, the Committee recommended a recapitalization proposal from two private investment firms which would allow shareholders, like Hoiles, who wished to liquidate their shares to redeem them at $212.71 per share. The shareholders voted in favor of the proposal in December 2003 and the recapitalization closed in May 2004. Hoiles, his ex-wife, and daughters elected to redeem their shares, collectively obtaining a total of approximately $142 million.
In January 2004, Alioto demanded from Hoiles $28.4 million in attorneys’ fees, which represented 20% of the amount realized on the redemption of Hoiles’s shares as well as the Family Shares. The Fee Agreement called for only 15% of anything recovered before a complaint was filed and a complaint (while threatened) was never filed. Alioto justified his demand for 20% based on an oral amendment to the Fee Agreement. Alioto claimed Hoiles orally agreed to pay him 20% in order to remove any incentive Alioto may have had to prematurely file a complaint, to adequately compensate Alioto for his extensive work and as a reward for the extraordinary results he had achieved. Alioto also claimed Hoiles had agreed to increase the percentage because Hoiles had changed the scope of the representation — Alioto was expected to secure a competitive price not only for his shares and the Family Shares but also for other shareholders who might want liquidity.5
On January 21, 2004, Hoiles sent a letter to Alioto instructing him “to take no further actions as a lawyer on [his] behalf’ and to submit a billing statement for his legal services at $1,000 per hour and for co-counsel’s services at $500 per hour. (Joint App’x Vol. I at 381.) He further informed Alioto he had retained independent counsel to “deal with your demands and my rights.” (Id.)
Unable to resolve their differences, Hoiles and Alioto filed separate lawsuits against each other — Hoiles in Colorado state court, Alioto in California state court. Both cases were removed to federal court and Alioto’s case was eventually transferred to Colorado and consolidated with Hoiles’s. The district court originally concluded the Fee Agreement was invalid under Colorado law. The case proceeded to a jury trial on a quantum meruit theory; the jury found in favor of Alioto and awarded him $1.15 million, which the district court reduced to a judgment of $650,000 after deducting the $500,000 nonrefundable retainer already paid. We reversed, concluding California, not Colorado, law applied. See Hoiles v. Alioto, 461 F.3d 1224, 1238 (10th Cir.2006).
On remand, the district court concluded the Fee Agreement was voidable under California law because it failed to comply with § 6147(a)(3) of the California Business and Professions Code. See Alioto v. Hoiles, 488 F.Supp.2d 1148, 1151-52 (D.Colo.2007). It wrote “[u]nder the plain language of [§ 6147(a)(3) ], some sort of statement about related matters is required, even if it is a statement that there [848]*848are no related matters not covered by the agreement for which the client could be required to pay compensation.” Id. at 1151-52. Because the Fee Agreement contained no such statement, the court decided it was voidable by Hoiles under § 6147(b), Hoiles had exercised his statutory right to void it, and Hoiles had not ratified the defective agreement prior to voiding it. Id. at 1152-53; Alioto v. Hoiles, No. 04-CV-00438-JLK-MEH, at 8-13 (D.Colo. Dec. 21, 2007). As a result, it reinstated the jury’s previous quantum meruit verdict. Alioto, 488 F.Supp.2d at 1157; Alioto, No. 04-CV-00438-JLK-MEH, at 13.
We again reversed, holding: “§ 6147(a)(3) requires no related matters statement if there are no related matters.” Alioto, 341 Fed.Appx. at 441. However, because the parties differed as to the existence of related matters, we remanded for the district court to decide the issue. Id. at 441^42. We also recognized existing disputes as to (1) whether the Fee Agreement violated other provisions of California law and (2) the proper interpretation of the Fee Agreement. Id. We decided these issues would also be best addressed by the district court in the first instance. Id. at 442.
On remand, the district court first determined the Fee Agreement was unambiguous and provided only for Alioto’s representation of Hoiles regarding his shares and not the Family Shares (as Alioto had alleged). It went on. Even assuming the Fee Agreement was ambiguous, making extrinsic evidence relevant, it concluded the evidence did not support Alioto’s claim to having been hired to represent Hoiles’s ex-wife and daughters. That is because there was no evidence showing Hoiles was authorized to act on their behalf. It then turned to whether Alioto sought fees for related matters not covered by the Fee Agreement. It determined Alioto’s attempt to collect 20% rather than 15% from Hoiles after his role expanded from seeking a fair price for Hoiles to seeking a fair price for him and all other Freedom shareholders constituted a related matter.6 Therefore, because Alioto attempted to collect fees for at least one related matter and the Fee Agreement did not contain a related matters statement as required by § 6147(a)(3), the district court determined the Agreement was voidable at Hoiles’s option. The court further concluded Hoiles had voided the Agreement and he had not ratified it prior to voiding it. The court reinstated the jury’s quantum meruit verdict.
II. DISCUSSION
The issues raised in this appeal were decided by the district court on the parties’ cross-motions for summary judgment. Our review is de novo. Sanders v. Sw. Bell Tele., L.P., 544 F.3d 1101, 1104 (10th Cir.2008).
A. Related Matters under § 6H.7(a)(3)
The district court decided Alioto’s attempt to collect 20% from Hoiles based on an alleged oral modification of the Fee Agreement (the 20% Issue) is a “related matter ... arising] out of [the parties’] relationship not covered by their contingency fee contract.” Cal. Bus. & Prof. Code § 6147(a)(3). Hoiles agrees but also identifies two other related matters, including [849]*849Alioto’s attempt to seek additional compensation for the legal services he performed for Hoiles’s ex-wife and daughters (the Family Shares Issue). While we agree with the district court a “related matter” exists, we decide the question based on the Family Shares Issue rather than the 20% Issue.
The rules of statutory construction are clear:
As in any case involving statutory interpretation, our fundamental task is to determine the Legislature’s intent so as to effectuate the law’s purpose. Statutory interpretation begins with an analysis of the statutory language. If the statute’s text evinces an unmistakable plain meaning, we need go no further. If the statute’s language is ambiguous, we examine additional sources of information to determine the Legislature’s intent in drafting the statute.
Olson v. Auto. Club of S. Cal., 42 Cal.4th 1142, 74 Cal.Rptr.3d 81, 179 P.3d 882, 884 (2008) (citations and quotation marks omitted).
As always, we start with the words of the statute. Section 6147(a)(3) requires “[a] statement as to what extent, if any, the client could be required to pay any compensation to the attorney for related matters that arise out of their relationship not covered by their contingency fee contract.” Breaking the statutory language into elements aids understanding. The statute is violated when an attorney (1) requires (or attempts to require) payment from the client; (2) for a related matter; (3) arising out of their relationship; (4) and the matter is not covered by (disclosed in) the fee agreement.
Turning to the last element first, the parties dispute whether the Fee Agreement covered the Family Shares — Alioto saying yes, Hoiles saying no. The basic goal of contract interpretation is to give effect to the parties’ mutual intent at the time of contracting. MacKinnon v. Truck Ins. Exch., 31 Cal.4th 635, 3 Cal.Rptr.3d 228, 73 P.3d 1205, 1212-13 (2003). “Such intent is to be inferred, if possible, solely from the written provisions of the contract. The clear and explicit meaning of these provisions, interpreted in their ordinary and popular sense, unless used by the parties in a technical sense or a special meaning is given to them by usage, controls judicial interpretation.” Id., 3 Cal.Rptr.3d 228, 73 P.3d at 1213 (citations and quotation marks omitted). A contract provision is ambiguous when it is capable of two or more reasonable constructions. Id. If a contract is ambiguous, extrinsic evidence is admissible to resolve the ambiguity. WYDA Assocs. v. Merner, 42 Cal.App.4th 1702, 50 Cal.Rptr.2d 323, 327 (1996).
Because the contract at issue is an attorney-fee agreement, additional rules apply. Attorney fee agreements are to be “strictly construed against the attorney.”7 Alderman v. Hamilton, 205 Cal.App.3d 1033, 252 Cal.Rptr. 845, 848 (1988). If any ambiguity exists, the construction favoring the client controls. See Lane v. Wilkins, 229 Cal.App.2d 315, 40 Cal.Rptr. 309, 315 (1964) (“The general rule is that in construing contracts between attorneys and clients concerning compensation if there is any ambiguity as to the intent of the parties that construction should be adopted which is most favorable to the client.”) (quotation marks omitted).
[850]*850The district court concluded the Fee Agreement was not ambiguous and did not cover the Family Shares. It reasoned the Agreement is addressed only to Hoiles, is replete with singular references of “you” and “your shares,” and only required Hoiles’s signature. “Nothing on the face of the Contingency Fee Agreement even hints at the prospect that Alioto also is representing Hoiles’ ex-wife and two adult daughters.” (Joint App’x Vol. VI at 2151.) Even assuming the Agreement could be deemed ambiguous and extrinsic evidence examined, the court found the evidence did not support Alioto’s claim he was retained to represent not only Hoiles but also his ex-wife and daughters, namely, there was no evidence Hoiles was authorized to act on their behalf. For the reasons given by the district court, we agree the Fee Agreement did not cover the Family shares.8
Given that the Family Shares Issue is not covered by the Agreement, the question becomes whether the issue involves Alioto seeking compensation from Hoiles for a “related matter” arising out of their attorney-client relationship. The statute does not define “related matter.” And there are no California cases specifically defining it in relation to § 6147. Therefore, we are left with the difficult task of determining how the California courts would define the term. See Parish Oil Co. v. Dillon Cos., 523 F.3d 1244, 1248 (10th Cir.2008). The district court looked to a California Supreme Court case involving insurance coverage in which the court defined the term “related” as “ ‘standing in relation; connected; allied; akin’ ” and having “ ‘a causal connection as well as the notion of similarity.’ ” (Joint App’x Vol. VI at 2154 (quoting Bay Cities Paving & Grading v. Lawyers’ Mutual Ins. Co., 5 Cal.4th 854, 868, 21 Cal.Rptr.2d 691, 855 P.2d 1263 (Cal.1993) (quotation marks omitted.))) We agree with these definitions as they are consistent with the plain meaning of “related.” See http://www.oed. com/view/Entry/161808?redirectedFrom= related# eid (defining “related” as, among other things, “[cjonnected or having relation to something else”.) But that only tells part of the story. The other key word is “matter.” It means “[a] thing, affair, concern” and “[a]n event, circumstance, fact, question, state or course of things, etc., which is or may be an object of consideration or practical concern; a subject, an affair, a business.” See http:// www.oed.com/view/Entry/115083?rskey= we80Mo & result=l & isAd-vanced=false# eid.
While the plain mean of the term “matter” is broad, placed in the context of the rest of § 6147(a)(3), a “matter” must be one for which the attorney can be eompen-[851]*851sated. See Cal. Bus. & Prof.Code § 6147(a)(3) (requiring “[a] statement as to what extent, if any, the client could be required to pay any compensation to the attorney for related matters that arise out of their relationship not covered by their contingency fee contract”) (emphasis added). This compensation requirement, in the context of an attorney’s fee statute, contemplates the provision of legal services. Thus, a “matter” must be some form of legal service.9
The Family Shares Issue is a “matter” because it involves Alioto’s provision of legal services to obtain a fair price for the Family Shares and Alioto seeks to be compensated for those legal services — he seeks 15% of the amount realized by Hoiles’s ex-wife and daughters as a result of the recapitalization. And those legal services are “related” to the legal services Alioto agreed to provide Hoiles — to obtain a fair price for Hoiles’s shares. Indeed, Alioto has admitted by his conduct that the Family Shares Issue is “related” to his representation of Hoiles. And his conduct speaks volumes.
Alioto has always claimed the Fee Agreement and his legal services covered the Family Shares, not just Hoiles’s shares. Unfortunately for him, the Fee Agreement cannot be interpreted to cover the Family Shares. Additionally, from the beginning of his representation of Hoiles, he performed legal services to obtain not only a fair price for Hoiles’s shares but the Family Shares as well. Indeed, the draft complaint references the Family Shares and numerous letters were sent by Hoiles at Alioto’s direction to Freedom shareholders demanding a fair price not only for Hoiles’s shares but the Family Shares as well. The draft complaint also references the Family Shares. He cannot now claim the services he performed for the Family Shares were unrelated to those he performed for Hoiles. Indeed, they were part and parcel of his representation of Hoiles.
Alioto’s arguments to the contrary do not pass muster. He claims the Family Shares Issue is a contract interpretation issue, not a “related matter.” He relies on Drummond v. Temmerman, Desmarais & Phillips, LLP, claiming the legislature did not intend for § 6147 to invalidate all contingent fee agreements found to be ambiguous or to involve a disagreement between a lawyer and his client. No. H030601, 2009 WL 1611281 (Cal.Ct.App. June 10, 2009) (unpublished). But Drummond is not helpful. There, the clients argued that because a term of their fee agreement with the attorney was ambiguous, the term was not “included” as required by § 6147. Id. at *6. The court simply held, unremark-ably, that not all ambiguous fee contracts are voidable under § 6147. Here, it is not any ambiguity in the Fee Agreement which makes it voidable under § 6147. Rather, it is the fact it does not cover the Family Shares, whether ambiguous or not, yet Alioto seeks compensation for the services he performed pertaining to those shares.
Alioto also says Hoiles testified he understood he retained Alioto to seek a fair price for his and the Family Shares. Alio-to is flatly wrong and the record citations he points to do not support this proposi[852]*852tion. Hoiles consistently testified his purpose in hiring Alioto was to secure a fair price for his shares.10
Our conclusion is in line with the purpose of § 6147(a), which is to protect clients by ensuring contingency fee agreements are fair and understandable. Alderman v. Hamilton, 205 Cal.App.3d 1038, 252 Cal.Rptr. 845, 848 (1988). Alioto, as the attorney and the drafter of the Fee Agreement, could have drafted the Fee Agreement to explicitly state his representation covered the Family Shares, not just Hoiles’s. See supra n. 10. He did not.
Alioto tried to collect fees from Hoiles on a matter related to the Fee Agreement. Because the Agreement lacked a related matters statement, it is voidable under § 6147.
B. Ratification
The district court determined Hoiles voided the Fee Agreement on January 21, 2004, when he directed Alioto to take no further action as his lawyer and offered to pay him an hourly fee for his services. As to whether he ratified the Agreement prior to voiding it, the court concluded ratification required Hoiles to have had full knowledge of his right to void the Agreement and there was no evidence he had such personal knowledge or that any of his attorneys informed him of his avoidance rights. It further concluded there was no support in California law for Alioto’s argument that an attorney’s knowledge may be imputed to his client for purposes of ratification.11
Alioto does not contest the date Hoiles voided the Fee Agreement, January 21, 2008. He does, however, disagree that Hoiles did not ratify the Agreement prior to that date.
If a contingency fee agreement does not comply with § 6147, the agreement “is voidable at the option of the plaintiff....” See Cal. Bus. & Prof.Code § 6147(b); see also Alderman, 252 Cal.Rptr. at 848 (if a contingency fee agreement does not comply with § 6147, the client has an “absolute right to void the contract before or after services [are] performed”). However, in general, a voidable contract may be ratified. Fergus v. Songer, 150 Cal.App.4th [853]*853552, 59 Cal.Rptr.3d 273, 288-89 (2007) (assuming contingency fee agreement voidable under § 6147 can be ratified). Nevertheless, in order for a voidable contract to be ratified, the client must have actual knowledge of his right to void the agreement. Id. at 289; see also Brown v. Rouse, 104 Cal. 672, 38 P. 507, 508-09 (1894) (“[I]t is an inherent element of ratification that the party to be charged with it must have fully known what he was doing.... [T]he very essence ... of ... ratification is that it is done advisedly, with full knowledge of the party’s rights.”) (quotation marks omitted).12
There is no evidence that prior to January 21, 2004, Hoiles personally knew he had the right to void the Agreement or that his attorneys informed him of this right. Recognizing this, Alioto claims Hoiles did not personally need to know of his right to avoid the Agreement. It is enough, he says, that Hoiles consulted with three attorneys prior to signing the Agreement and these attorneys are presumed to know the law, including voidability under § 6147. He maintains California law allows the attorneys’ presumed knowledge to be imputed to Hoiles. In other words, Hoiles is charged with knowing everything his attorneys should have known.
“The general rule of agency is that notice to or knowledge possessed by an agent is imputable to the principal. This rule ordinarily applies in the relation of attorney and client.” Chapman Coll. v. Wagener, 45 Cal.2d 796, 291 P.2d 445, 448 (1955) (citation omitted).
As against a principal, both principal and agent are deemed to have notice of whatever either has notice of, and ought, in good faith and the exercise of ordinary care and diligence, to communicate to the other.... The fact that the knowledge acquired by the agent was not actually communicated to the principal ... does not prevent operation of the rule. The knowledge is, in law, imputed to the principal. The agent may have been guilty of a breach of duty to his principal, yet the knowledge has the same effect as to third persons as though his duty had been faithfully performed. The agent acting within the scope of his authority, is, as to the matters existing therein during the course of the agency, the principal himself.
McIntosh v. Mills, 121 Cal.App.4th 333, 17 Cal.Rptr.3d 66, 78 (2004) (quotation marks and emphasis omitted); see also Herman v. Los Angeles Cty. Metro. Transp. Auth., 71 Cal.App.4th 819, 84 Cal.Rptr.2d 144, 150 (1999) (stating an agent/attorney’s knowledge is imputed to the principal/client even if the agent/attorney fails to communicate that knowledge to the principal/client but noting this legal proposition does not apply when the principal/client must have actual knowledge); People v. Amerson, 151 Cal.App.3d 165, 198 Cal.Rptr. 678, 681 (1984) (“It is axiomatic that knowledge to the attorney is knowledge to the client.”).
However, in all but two of the eases cited by Alioto,13 as well as in those cases [854]*854this Court found in which the court imputed an attorney’s knowledge to his client, the attorney had actual knowledge of the relevant facts. See, e.g., Chapman Coll, 291 P.2d at 448 (imputing attorney’s knowledge of provisions of promissory notes, which he helped draft, to client); Gracey v. Tilles, Webb, Kulla & Grant, No. B234634, 2013 WL 672724, at *5-6 (Cal.Ct.App. Feb. 25, 2013) (unpublished) (imputing attorney’s actual knowledge of voidability of fee agreement to clients); McIntosh, 17 Cal.Rptr.3d at 71, 78 (imputing attorney’s actual knowledge of illegality of contract to client); Bennett v. Shahhal, 75 Cal.App.4th 384, 89 Cal.Rptr.2d 272, 276 n. 3 (1999) (rejecting argument client did not know his attorney had sent first notice of intent to sue to defendant because attorney’s knowledge is imputed to client); Stalberg v. W. Title Ins. Co., 230 Cal.App.3d 1223, 282 CaI.Rptr. 43, 48-49 (1991) (imputing plaintiffs’ law firm’s discovery that defendant authored the wild deeds to plaintiffs in determining when plaintiffs learned of their “slander of title” claim for purposes of the statute of limitations). Here, there is no evidence any of Hoiles’s attorneys actually knew the Fee Agreement was voidable under § 6147 or that it was an issue they would reasonably be expected to address under the circumstances. Indeed, their testimony, which Alioto has not rebutted, was that none of them reviewed the Agreement prior to Hoiles signing it. And Hoiles’s testimony, which has also not been rebutted, reveals he never received any advice from any of these attorneys concerning the Agreement.
Alioto nevertheless argues attorneys are presumed to know the law and therefore Hoiles’s attorneys are presumed to have known the Fee Agreement was voidable under California law. And, according to Alioto, this presumption of knowledge can be imputed to Hoiles. But we have uncovered no California case law or even cases from other jurisdictions (and Alioto cites none) supporting his argument in the context of ratification. Indeed, a California Court of Appeals case suggests otherwise. See Gallagher v. Cal. Pac. Title & Trust Co., 13 Cal.App.2d 482, 57 P.2d 195, 201 (1936) (“The doctrine of constructive knowledge of material facts or imputation of knowledge of such facts does not generally obtain in the case of ratification, as ordinarily it is what the principal knows, and not what he has mere legal notice of, that is to be considered in determining whether there has been ratification.”).14
Hoiles did not ratify the Fee Agreement prior to voiding it.
C. Reinstatement of Jury’s Quantum Meruit Verdict
Alioto’s quantum meruit claim was initially tried to the jury based on Colorado [855]*855law which did not allow the jury to consider the void Fee Agreement’s fee percentage or the work of co-counsel in determining a reasonable fee.15 On the most recent remand, the district court decided California law applied to the quantum meruit claim but rejected Alioto’s argument for a new trial allowing the jury to be instructed on California law. It determined California law, like Colorado law, precluded consideration of a fee percentage contained in a void contingency fee agreement in a quantum meruit case. It further concluded Alioto did not have standing to recover fees in quantum meruit on behalf of co-counsel, who are not parties to this action.
Neither party contests application of California law to this issue. Alioto, however, argues California law allows jury consideration of the fee percentage in a void contingency fee contract and co-counsels’ services in determining a reasonable fee.
1. Contingency Fee Percentage
The California Supreme Court has yet to address whether a jury may consider a void contingency fee agreement in determining a reasonable attorney fee under § 6147(b). However, the California Court of Appeals has said no:
Where, as here, a client exercises his right to void a contingency fee agreement, [§ ] 6147 does not permit the trier of fact to consider the contingent nature of the fee arrangement in determining a reasonable fee. If the contingency fee agreement is void, there is no contingency fee arrangement. A void contract is no contract at all; it binds no one and is a mere nullity. Consequently, such a contract cannot be enforced.
The deterrent and protective purposes of [§ ] 6147 would be impaired if an attorney who was barred from enforcing a contingency fee agreement would nevertheless be entitled to a percentage of the recovery based on the contingent risk factor. The attorney would in effect be receiving a contingency fee even though the contingency fee agreement had been voided by the client.
Fergus, 59 Cal.Rptr.3d at 290 (citation and quotation marks omitted);16 see also Siciliano v. Singh, Nos. E052352 & E053582, 2012 WL 4748862, at *7 (Cal.Ct.App. Oct. 5, 2012) (unpublished) (“[I]t would be anomalous to allow a client to void a contract on the basis it did not comply with [§ ] 6147 but to nonetheless allow the attorney who drafted the contract to obtain enforcement of terms favorable to himself.”); Zweig v. Kwon, No. B153064, 2003 WL 150107, at *7 (Cal.Ct.App. Jan. 22, 2003) (unpublished) (“To provide a remedy that compensates an attorney who violates [§ ] 6147 at the same rate that the invalid, unenforceable contract would have provided would make [§ ] 6147 meaningless and would frustrate the public policy it expresses.”); Mesa West, Inc. v. LaMoure, No. G038601, 2009 WL 388992, at * 13 (Cal.Ct.App.2009) (unpublished) (trial court properly ignored the general rule that a regularly hourly rate does not fairly compensate an attorney hired on a contingent fee basis; because the contingency fee agreement was voided by the client for [856]*856failing to comply with § 6147, “this is no longer a contingency fee case”).17
While not directly on point, Chambers v. Kay supports this conclusion. 29 Cal.4th 142, 126 Cal.Rptr.2d 536, 56 P.3d 645 (2002). There, Chambers and Kay were two attorneys who operated separate law practices. Kay initiated representation of a plaintiff in a sexual harassment action. At Kay’s request, but without the plaintiffs written consent, Chambers began serving as co-counsel. During the course of the sexual harassment action, Chambers was discharged by Kay. Kay informed Chambers he would be entitled to 16% of Kay’s attorneys’ fees, which were 40% of the plaintiffs recovery. The sexual harassment action eventually resulted in a substantial jury verdict for the plaintiff and an award of attorneys’ fees. Kay then informed Chambers he would not be receiving 16% of Kay’s fees but rather would be paid an hourly rate. Chambers objected and filed suit for breach of contract. The California Supreme Court held Chambers and Kay’s fee agreement violated Rule 2-200 of the California Rules of Professional Responsibility which prohibited attorneys who were not partners, associates or shareholders from splitting fees without a client’s written consent and therefore Chambers could not recover on [857]*857the contract. Id., 126 Cal.Rptr.2d 536, 56 P.3d at 656, 658. Turning to quantum meruit, the court further held the quantum meruit award could not be based on the fee the parties negotiated without the client’s consent:
In essence, Chambers contends that, notwithstanding the absence of the required written client consent, he should be allowed to accomplish indirectly a division of fees under the guise of a quantum meruit claim. We reject the contention.... We perceive no legal or policy justification for finding that the fee the parties negotiated without the client’s consent furnishes a proper basis for a quantum meruit award in this case.
Id., 126 Cal.Rptr.2d 536, 56 P.3d at 658.
California law precludes consideration of the fee percentage contained in a void contingency fee agreement in determining a reasonable fee under § 6147(b). Alioto was not entitled to an instruction allowing the jury to consider the contingency fee percentage in determining a reasonable fee. There is no need for a new trial.
2. Co-Counsels’ Services
Alioto does not cite any case law in support of his claim the jury should have been allowed to consider co-counsels’ services in determining a reasonable fee. He cites only to § 6147, saying because it allows him to collect a reasonable fee in place of the contractual fee and because the Fee Agreement allows him to retain co-counsel, the reasonable fee should include co-counsel’s work. We disagree.
Quantum meruit is an ex contractu remedy. It measures the reasonable value of services rendered without regard to the contract, not because of it. See Advanced Choices, Inc. v. Dep’t of Health Servs., 182 Cal.App.4th 1661, 107 Cal.Rptr.3d 470, 480 (2010). It does not follow that a reasonable fee has to include co-counsels’ work because the contractual fee did. Even looking to the Fee Agreement, however, it merely says Alioto is permitted to retain counsel to assist him and any additional counsel will not increase the amount of Hoiles’s fee. It says nothing about how Alioto intended to pay co-counsel. Because Alioto has not provided any further argument, we decline to address the issue further.
The court correctly reinstated the jury’s quantum meruit verdict.
D. Alioto’s Fraud and Misrepresentation Claims
Alioto also raised fraud and misrepresentation claims. He agreed, however, these claims only survived if the Fee Agreement is valid.
AFFIRMED.
This order and judgment is an unpublished decision, not binding precedent. 10th Cir. R. 32.1(A). Citation to unpublished decisions is not prohibited. Fed. R.App. 32.1. It is appropriate as it relates to law of the case, issue preclusion and claim preclusion. Unpublished decisions may also be cited for their persuasive value. 10th Cir. R. 32.1(A). Citation to an order and judgment must be accompanied by an appropriate parenthetical notation — (unpublished). Id.