The Chicago Musical Instrument Company (CMI) appeals an order of the United States District Court for the Northern District of Illinois, Eastern Division, the Honorable Stanley J. Roszkowski presiding, disqualifying CMI’s co-counsel, the law firm of Fitch, Even, Tabin, Flannery & Welsh (Fitch or the Fitch firm), in this patent infringement action. Two questions are presented for our review. We must first decide in light of the Supreme Court’s recent pronouncement in
Firestone Tire & Rubber Co.
v.
Risjord,
I.
Alfred B. Freeman brought this action in July of 1973 against the Chicago Musical Instrument Company, alleging that CMI had infringed upon several patents owned by Freeman. The patents involve chord organs having an electronic system for sounding bass notes. CMI denied both infringement of the patents and actual ownership of them by Freeman.
On October 16, 1978, Freeman retained the law firm of Dressier, Goldsmith, Shore, Sutker & Milnamow, Ltd. (Dressier) to represent him in this action. 1 Prior to this, since 1975, the Dressier law firm had represented Freeman in other electronic organ matters but did not directly represent Freeman in this case. Throughout the entire course of this action, CMI has been represented by the Chicago law firm of Hill, Van Santen, Steadman, Chiara & Simpson, P.C. (Hill).
The ownership aspeсt of the lawsuit was tried before the district court in November of 1978 and was resolved in Freeman’s favor. Shortly thereafter, CMI engaged the services of the Chicago law firm of attorneys of Fitch, Even, Tabin, Flannery & Welsh to act as co-counsel with the Hill law firm. 2 Appearances were entered in district court by John Flannery and Roger Greer on behalf of the Fitch law firm. Apparently when the new litigation was made known to the members of the Fitch firm, *717 Eric C. Cohen, an associate in Fitch since May 1979, notified Flannery that he had previously been employed as an associate lawyer in the Dressier law firm from July 1976 until April 1979. Cohen told Flannery that he had neither worked on nor had he any knowledge of the subject matter of the present litigation. Flannery then notified opposing counsel at Dressier of these facts and was informed that Dressier objected to the further representation of CMI by the Fitch law firm. Dressier claimed that Cohen had access to the confidences and secrets of their client, Freeman, in that it was a Dressier firm policy to distribute various legal opinions and memoranda to all lawyers of the firm. The Dressier law firm also claimed thаt cases were often discussed by members of the firm among each other, implying that Cohen was privy to Freeman’s secrets and confidences.
CMI then filed a motion with the district court requesting a declaration that the Fitch law firm be allowed to continue to represent CMI in this action. In support of their motion, an affidavit by Cohen was submitted. In it Cohen averred that while he was an associate at Dressier he never performed work on behalf of Freeman and that he, Cohen, had no knowledge of the subject matter of the present lawsuit. He also averred that although various legal memoranda and opinions circulated at Dressier, he typically had been too busy to read them.
The Dressier firm in response filed an affidavit executed by Talivaldis Cepuritis, a member of Dressier and counsel for Freeman, in which Cepuritis averred that the Freeman litigation files were stored in cabinets immediately outside of Cohen’s former office and also that it was the practice of the firm to circulate and discuss among the members of the law firm correspondence, opinions, memоranda, etc. generated from the firm’s cases. In a supplemental affidavit, Cohen responded that he had never met Mr. Freeman and that he recalled neither reading nor discussing any memoranda or files related to the Freeman case.
The district court, without making any findings of fact, concluded that “there can be little doubt that permitting the Fitch firm to represent defendant in the instant case would result in an appearance of impropriety.” Relying upon
Westinghouse Electric Corp. v. Gulf Oil Corp.,
II.
Before addressing the merits of CMI’s appeal, we must first determine whether, in light of
Firestone Tire & Rubber Co. v. Risjord,
Pursuant to 28 U.S.C. § 1291, the Courts of Appeals have jurisdiction over “all final decisions of the district courts . . . except where a direct review may be had in the Supreme Court.” This language has generally been construed to mean that an appeal may not be taken under this section until there has been “a decision by the district court that ends the litigation on the merits and leaves nothing for the court to do but execute the judgment.”
Randle v. Victor Welding Supply Co.,
This Court has previously held that both orders granting and denying motions to disqualify counsel satisfy the
Cohen
criteria and thus are appealable.
Schloetter v. Railoc of Indiana, Inc.,
The first prong of the “collateral order” test is clearly met by an order granting a disqualification motion. Such an order “conclusively determine[s] the disputed question” because the only issue to be determined is whether challenged counsеl will be permitted to continue his representation. This position is consistent with
Firestone,
in which the Court, with two justices in disagreement as to this point, found that even orders denying disqualification motions conclusively determine the disputed question.
Id.
The grant of a motion to disqualify counsel also serves to “resolve an important issue completely separate from the merits of the action.” The court’s order in this case involves legal and factual issues distinct and separate from the underlying patent issues presented. 5 Clearly, the order disqualifying counsel does nothing to assist in the resolution of the plaintiff’s claims presented by his complaint. The second prong of the Cohen test is accordingly met by the court’s order. 6
It is with the third and final Cohen requirement that we must distinguish an order granting a disqualification motion from an order denying it. The Supreme Court in Firestone concluded that orders denying disqualification motions remain effectively re viewable on appeal from a final judgment. We reach the opposite conclusion concerning orders granting disqualification motions. Unlike orders denying disqualification motions, orders granting disqualification requests have immediate, severe, and often irreparable and unreviewable consequences upon both the individual who hired the disqualified attorney or law firm as well as upon the disqualified counsel. It is our holding that an order granting a disqualification motion is effectively unreviewаble on appeal from a final judgment.
First, with respect to orders granting disqualification motions, the losing party with the tainted counsel is immediately separated from the representation of his choice. The effect of this is immediate and measurable. The party who has had his counsel disqualified is abruptly deprived of his legal advisor, and, provided the affected party desires to proceed with his action, the litigation is disrupted while he secures new counsel. This resulting situation is contrary to that which occurs with a denial of a disqualification motion — with a motion denial there typically is no disruption in the litigation. If the order granting disqualification is erroneous, correcting it with an appeal at the end of the case might well require a party to show that he lost the case because he was improperly forced to change counsel. This would appear to be, as the Second Circuit recently observed, “an almost insurmountable burden,”
Armstrong v. McAlpin,
Second, a granting of a disquаlification motion all too often impairs the reputation of the disqualified firm or attorney, and this injury may never be corrected on appeal if the party is satisfied with the performance of his new counsel.
Armstrong v. McAlpin, supra,
Neither do litigants facing a disqualification order have available to them the protection cited by the
Firestone
Court as a rationale for denying review of most pretrial discovery orders: “[I]n the rаre case when appeal after final judgment will not cure an erroneous discovery order, a party may defy the order, permit a contempt citation to be entered against him, and challenge the order on direct appeal of the contempt ruling.”
Firestone Tire & Rubber Co. v. Risjord, supra,
This differs markedly frоm the case where an attorney in good faith takes the position that his client should not be required to comply with a discovery order; at least in that instance, the lawyer is not requested to engage in what amounts to an act of civil disobedience with personal consequences in order to obtain review.
In re Coordinated Pretrial Proceedings, Etc., supra,
Finally, we note that one rationale for denying collateral appeal of orders denying disqualification motions is that were collateral review allowed, parties could routinely seek collateral review for tactical reasons such as delay and harassment. The granting of a disqualification motion by a district court is a fair indication that a legitimate and nonfrivolous issue has been raised. It appears far less likely that appeals from orders granting disqualification motions will be taken for purely tactical reasons. If a motion is determined to be frivolous, the aggrieved party may be awarded costs under frivolous action laws that exist in many jurisdictions. It is incumbent upon courts, when a legitimate question of propriety arises, to dispose of matters promptly in order to facilitate and improve the justice system. Immediate appealability of orders granting disqualification motions fulfills this purpose.
For the above reasons, we feel that an order granting a mоtion to disqualify counsel falls into the “small class [of cases] . . . too important to be denied review and too independent of the cause itself to require that appellate consideration be deferred until the whole case is adjudicated.”
Cohen, supra,
III.
Preliminarily, it is important to note the limits of the scope of review by which we are guided. All evidence in the case at bar comes via affidavits. The district court neither held an evidentiary hearing on the disqualification motion nor did it make findings of fact to which we must defer. Under similar circumstances, we have stated and we now reaffirm that district courts enjoy no particular advantage over appellate courts in their formulation of ethical norms.
Novo Terapeutisk, Etc. v. Baxter Travenol Lab.,
IV.
The question of propriety that has arisen in this case concerns a law firm attempting to represent a party where an associate of the law firm was at one time an associate member for the law firm representing the adverse party. The resolution of the ethical question presented in this case must be guided by prior caselaw and the precepts of the Code of Professional Responsibility itself. Before we begin our analysis, however, it is necessary to briefly note the ethical considerations which are implicated by the issue presented here. A fundamental principle in the lawyer-client relationship is that a lawyer shall maintain the confidentiality of the information relating to the representation. This principle is expressly recognized by Canon 4
7
of the ABA Code of Professional Responsibility and is also encompassed within the parameters of Canon 9.
8
It is part of a court’s duty to safeguard the sacrosanct privacy of the attorney-client relationship.
See American Can Company v. Citrus Feed Co.,
The analysis which we will employ to resolve the issue presented has been develоped through the prior caselaw of the Seventh Circuit.
See Novo Terapeutisk Laboratorium, Etc. v. Baxter Travenol Lab.,
The first step in our analysis requires that we ascertain whether the subject matter of the representation of Freeman by the Dressier firm, at the time Cohen was an associate there, is “substantially related” to the present litigation.
10
If the subject matter of the former representation is not substantially related to the subject matter of the present representation, obviously no еthical problem exists.
See Uniweld Products, Inc. v. Union Carbide Corp.,
Implicit in a finding of substantial relationship is a presumption that particular individuals in a law firm freеly share their client’s confidences with one another.
See Novo Terapeutisk, Etc. v. Baxter Travenol Lab., supra,
In Novo, we recognized that the presumption that an attorney has knowledge of the confidences and secrets of his firm’s clients is rebuttable. Novo Terapeutisk, Etc. v. Baxter Travenol Lab., supra, 607 *723 F.2d at 197. CMI argues that Cohen’s affidavits, which state that he neither read the memoranda which circulated within the firm nor had he any knowledge of the Freeman case, satisfactorily rebuts the above described prеsumption. The district court failed to make any determination as to this issue.
The question as to what quality or quantity of proof is actually necessary to rebut the presumption of. imputed knowledge was expressly left open in
Novo. Id.
The purposes behind the disqualification remedy, namely, the need to enforce the lawyer’s duty of absolute fidelity and to guard against the danger of inadvertent use of confidential information,
Ceramco, Inc. v. Lee Pharmaceuticals,
It will not do to make the presumption of confidential information rebuttable and then to make the standard of proof for rebuttal unattainably high. This is particularly true where, as here, the attorney must prove a negative, which is always a difficult burden to meet.
Laskey Bros. of W. Va., Inc. v. Warner Bros. Pictures,
In
Novo,
this Court held that the uncontroverted affidavits “clearly and effectively” rebutted the presumption existing in the case.
Novo Terapeutisk, Etc. v. Baxter Travenol Lab., supra,
In this case, the district court failed to address the question of whether CMI had clearly and effectively shown that Cohen, while he was an associate for the Dressier law firm, had no knowledge of the confidences and secrets of the client Freeman. The possible appearance of impropriety, found to be determinative by the district court, is simply too weak and too slender a reed on which to rest a disqualification order in this case, particularly where the mere appearance of impropriety is far from clear.
Accord, Armstrong v. McAlpin, supra,
*724 V.
Accordingly, the order of the district court is Reversed and Remanded for proceedings consistent with this opinion.
Notes
. Freeman was initially represented by W. Melville Van Sciver, who at the time he filed the initial complaint was a sole practitioner. On April 9, 1965, George Gerstman, of the firm of Lettvin, Pigott .& Gerstman, filed an appearance in district court on behalf of Freeman. Van Sciver had previously voluntarily withdrawn as counsel. Gerstman and his firm were ultimately replaced by Dressier.
. CMI’s initial choice of co-counsel was Ronald E. Larson of the law firm of Allegretti, Newitt, Witcoff & McAndrews. Larson and the Allegretti law firm were disqualified by Judge Roszkowski when it was revealed that the firm shared office space with the original attorney for Freeman, W. Melville Van Sciver.
. In
Firestone,
the Court concluded that an order denying disqualification of counsel failed to meet the third of the
Cohen
conditions. It held that effective review of the district court’s refusal to disqualify counsel could be had on appeal from the judgment, since at that time, if the Court of Appeals concluded that the district court’s ruling constituted prejudicial error, it could vacate the judgment appealed from and order a new trial. The Court noted that the harm in being forced to await final judgment before appealing did not “ *diffe[r] in any significant way from the harm resulting from other interlocutory orders that may be erroneous such as orders requiring discovery over a work-product objection or orders denying motions for recusal of the trial judge.’ ”
Firestone Tire
&
Rubber Co. v. Risjord, supra,
. This view is consistent with the other circuits and the Court of Customs and Patent Appeals that have considered the issue since
Firestone. See, e.g., Greitzer & Locks v. Johns-Manville Corp.,
No. 81-1379 (4th Cir. Mar. 5, 1982);
Ah Ju Steel Co., Ltd. v. Armco, Inc.,
. Freeman alleged in his complaint that he was the owner of two patents, Nos. 3,548,066 and 3,711,618, which had been infringed by CMI. The patents involve a system invented by Freeman for sounding bass notes in electronic musical instruments. CMI responded that Freeman, as a former employee of CMI, did not rightfully own the patents but instead was obligated to assign to CMI the rights to all of his inventions. Furthermore, CMI claimed that even if Freeman did properly own the patents, CMI was entitled to a nonexclusive licеnse to use Freeman’s inventions in its business. The district court decided the ownership question in Freeman’s favor. The infringement issue has yet to be litigated.
. In
Firestone,
the Supreme Court assumed, without deciding, that an order denying a disqualification motion fulfills the second prong of the
Cohen
test.
Firestone Tire & Rubber Co., supra,
. Canon 4 states: “A Lawyer Should Preserve the Confidences and Secrets of a Client.”
. Canon 9 states: “A Lawyer Should Avoid Even the Appearance of Professional Impropriety.”
. The Eighth Circuit has proffered one justification for the merger of Canon 9’s concern for the appearanсe of impropriety with Canon 4’s injunction against disclosure of secrets:
Clients who retain, are billed by, and pay a law firm, can reasonably expect, and often their problems require, that confidences disclosed to one lawyer in the firm will be shared with others in the firm. Indeed, the ability to bring various fields of expertise to bear on the client’s problem often serves as a justification for practice as a firm and the very reason for the client’s decision to retain the firm. If the reputation and status of the legal profession, and more .imрortantly the freedom and opportunity of the public to obtain adequate legal counseling, are to be preserved, a client must have every reason to expect that disclosures to “his” law firm will not be used against him by any member or associate lawyer in that firm.
State of Arkansas v. Dean Foods Products Company, Inc.,
. The “substantial relationship” test was first espoused in the seminal case
T. C. Theatre Corp. v. Warner Bros. Pictures,
Initially, the trial judge must make a factual reconstruction of the scope of the prior legal representation. Second, it must be detеrmined whether it is reasonable to infer that the confidential information allegedly given would have been given to a lawyer representing a client in those matters. Finally, it must be determined whether the information is relevant to the issues raised in the litigation pending against the former client.
Westinghouse Electric Corp. v. Gulf Oil Corp.,
. In support of its holding, the
Laskey
court expressed concern that an irrebuttable presumption “might seriously jeopardize [young lawyers’] careers by temporary affiliation with large law firms."
Laskey Bros. of W. Va., Inc. v. Warner Bros. Pictures,
. It will be necessary for the Fitch law firm to be disqualified should CMI be unable to show that Cohen was not privy to Freeman’s confidences and secrets.
See Novo Terapeutisk Laboratorium, Etc. v. Baxter Travenol Lab.,
