This case confronts us with some of the ethical problems involved when a former government attorney takes up the practice of law with a large law firm. Lake County, Illinois, one of the parties to this appeal, is the former employer of an attorney now practicing law with the firm representing the plaintiffs-appellants. Lake County moved to disqualify the plaintiffs’ law firm because of the County’s former relationship with one of the firm’s associates. The district court granted the motion, finding that the past association gave rise to an appearance of impropriety and holding that both the attorney and the entire law firm must be disqualified. Plaintiffs are here appealing the disqualification as a collateral order appealable under the doctrine set forth in
Cohen
v.
Beneficial Loan Corp.,
I.
Marc Seidler, the attorney upon whose career our attention must focus in this case, served as an Assistant State’s Attorney in Lake County from 1976 until January 31, 1981. On December 1, 1976, Mr. Seidler was appointed Chief of the Civil Division of the Lake County State’s Attorney’s office, and in September 1979, he was appointed First Assistant State’s Attorney. As such, he had general supervisory responsibility *254 with respect to all civil cases handled by the State’s Attorney’s office. On February 2, 1981, Mr. Seidler joined the Chicago law firm of Rudnick & Wolfe as an associate, working in the firm’s Northbrook, Illinois office.
On June 5, 1981, Rudnick & Wolfe filed suit against the County of Lake and the Village of Grayslake, on behalf of its clients, the LaSalle National Bank as Trustee (“LaSalle National”) and Lake Properties Venture (“Lake Properties”). LaSalle National and Lake Properties are the owners of a tract of land, known as Heartland, located in the Village of Round Lake Park, an Illinois municipal corporation situated in Lake County. Rudnick & Wolfe has represented these two clients since January 1976 1 in connection with plans to develop the Heartland property as a mixed-use, low-density development. This representation has included all legal work necessary for implementing the development, including the assembling of parcels of land, annexation, zoning, land planning and obtaining utility services. After failing in a 1979 attempt to secure annexation of the Heartland property to the Village of Grayslake, the plaintiffs negotiated annexation of the property by the Village of Round Lake Park, a process which was completed on January 9, 1981. The plaintiffs allege that on the date of the annexation, they were already planning a law suit to challenge the probable denial by the Village of Grayslake of their request for access to the County’s interceptor sewer system. The complaint filed on June 5, 1981 charged that the defendants’ refusal to permit access to a federally funded sewer system was arbitrary and capricious and violated plaintiffs’ rights to substantive and procedural due process, equal protection and just compensation. It also alleged that the Sewage Disposal Agreement or “sphere of influence agreement” (“the Agreement”) under which Lake county permitted the Village of Grayslake to determine whether plaintiffs’ property, located in Round Lake Park, would receive sewer services from the Lake County sewer system was an unlawful delegation of authority to Grayslake, an unlawful exercise of extraterritorial jurisdiction by Grayslake and a violation of the terms of the sphere of influence agreement itself.
The Lake County-Grayslake Sewage Disposal Agreement was signed prior to Mr. Seidler’s association with the State’s Attorney’s office, and he was not involved in consideration of the validity or impact of the Agreement upon the Heartland property in particular. However, the Lake County-Grayslake Agreement was one of several similar agreements executed between the County and various municipalities. Mr. Seidler was, moreover, in charge of the Civil Division in a relatively small legal department 2 during the period when the Grays-lake Agreement was in effect and was privy to discussions about the validity of such sewage agreements in general. Specifically, it is alleged that Mr. Seidler had access to various documents and memoranda, in particular an opinion letter about the validity of the Agreement prepared by bond counsel for the County and a memorandum expressing the views of one County Board member on the Agreement. Some of these documents were subsequently made public. When County officials requested that the State’s Attorney’s office prepare a formal legal opinion about the Agreement, Seidler was assigned responsibility for its preparation. The request was subsequently withdrawn and the opinion never written, but Seidler did review the relevant documents in preparation for writing it. He was also involved in consideration of the validity of similar agreements in relation to sewer service for property other than Heartland and participated in discussion about, and the formulation of legal strategies concerning, those agreements. On the basis of Seidler’s involvement in these matters, the County *255 moved to disqualify both Seidler and the entire Rudnick & Wolfe firm.
Mr. Seidler has submitted a sworn affidavit stating that he has not disclosed to his law firm or any of its personnel any information about the Agreement, about the County’s legal strategy or about any other matter relevant to the present litigation. In addition, Theodore J. Novak, a partner at Rudnick & Wolfe involved in the representation of Lake Properties, has filed an affidavit swearing that Mr. Seidler had been screened from all involvement in the litigation since the motion to disqualify was filed.
II.
Appellees have brought a threshold challenge to our jurisdiction, arguing, in reliance upon
Firestone Tire & Rubber Co. v. Risjord,
III.
The standard for disqualification of an attorney who undertakes litigation against a former client is the so-called “substantial relationship” test adopted by this circuit when it affirmed the relevant portion of the district court decision in
Cannon v. U.S. Acoustics Corp.,
Our most recent cases direct that a three-level inquiry be undertaken in order to determine if such a substantial relationship exists. First, the trial judge must make a factual reconstruction of the scope of the prior legal representation. Second, it must be determined whether it is reasonable to infer that the confidential information allegedly given would have been given
*256
to a lawyer representing a client in those matters. Third, it must be determined whether that information is relevant to the issues raised in the litigation pending against the former client.
Westinghouse Electric Corp. v. Gulf Oil Corp.,
A.
The transcript of the proceedings held before Judge Grady on December 21, 1981 reveals that the relevant legal standards were fully presented to the trial court and that the Westinghouse standard was applied to the facts of this case. As to the first prong of the substantial relationship test, we find that the record adequately establishes a factual reconstruction of the scope of Mr. Seidler’s prior representation. Seidler contends that the scope of that prior representation did not include the subject of the present litigation because he was not substantially involved in the particular matter at issue — the application of the Lake County-Grayslake Agreement to the Heartland property. However, Seidler "was the County’s principal legal advisor with respect to all civil matters, supervising an office with only six attorneys in it. Although he may not have been involved in the precise subject of this litigation, he was clearly privy to a substantial amount of discussion and strategic thinking about the various sewage agreements negotiated and signed by Lake County with various municipalities over a period of time when the validity of such agreements was being challenged. The validity of one of those substantially identical agreements is the subject of a broad-based challenge in the lawsuit at hand. We therefore find that the district court did not abuse its discretion in concluding that the subject matter of the present litigation fell within the scope of Mr. Seidler’s previous representation.
Applying the second prong of the
Westinghouse
test, we find that it is reasonable to infer that confidential information about the County’s legal analysis and strategies relating to the validity of the various sewage agreements would have been given to an attorney who was the chief of the civil division of the State’s Attorney’s office during that time. In fact, the record contains uncontroverted evidence that Mr. Seidler’s advice was sought on the very Agreement in question in the present litigation. He does not deny, moreover, that he was substantially involved in representation of the County regarding the sewage agreements signed with other municipalities or applied to other parcels of land. His own affidavits and the evidence of memoranda contained within his files at the State’s Attorney’s office make clear that he received a great deal of information about the Grayslake Agreement. The substantial relationship standard does not require that a party moving to disqualify point to or reveal a particular piece of confidential information which the attorney challenged actually received; its receipt will be presumed in circumstances which make it a likely possibility.
Schloetter,
Applying the third prong of the Westinghouse test, we have no difficulty finding that information about the validity of the *257 various sewage agreements signed by Lake County is relevant to the issues raised in the litigation now pending against the County. A simple reading of the complaint filed in this case makes clear that any and all information about Lake County’s refusal to permit plaintiffs access to the sewer system in question will be relevant in the pending litigation. Mr. Seidler not only had information about the Agreement challenged here but would presumably be a likely person, as principal legal advisor to the County on civil matters, to have knowledge about the County’s attitude or policy toward the extension of sewer services in general. We therefore hold that the district court did not abuse its discretion in concluding that the information presumed to have been possessed by Mr. Seidler was relevant to the issues raised in the litigation now pending against his former employer and, in sum, that the subjects of his past and present representation were substantially related.
B.
Having concluded that the three-part
Westinghouse
test was properly applied and that a substantial relationship existed between the subjects of the past and present representation, we are entitled to presume that confidential information was received during the prior representation, but must still decide whether that presumption has been rebutted on the facts of this case.
Freeman,
In the case at hand, Mr. Seidler submitted an affidavit that he had received no information specific to the Grayslake Agreement or to application of the Agreement to the Heartland property. However, after considering the pleadings in this case, we have decided that information relating to any of the similar sewage agreements or to the attitude or policies of Lake County toward provision of sewer service in general to new developments is relevant to the issues in the present litigation. Mr. Seidler does not deny that he was privy to information about these other matters. Moreover, considering the small size of the State’s Attorney’s office and Mr. Seidler’s position as supervisor of all the civil legal work there, we cannot say that the presumption raised by the substantial relationship test has been clearly and persuasively rebutted. Since we are required to resolve any doubts in favor of disqualification, we therefore hold that the district court did not abuse its discretion by disqualifying Marc Seidler •from representing the plaintiffs in this litigation.
IV.
Having found that Mr. Seidler was properly disqualified from representation of the plaintiffs in this case, we must now address whether this disqualification should be extended to the entire law firm of Rudnick & Wolfe. Although the knowledge possessed by one attorney in a law firm is presumed to be shared with the other attorneys in the firm,
Schloetter,
Although this court has rejected screening in a situation involving simultaneous
*258
representation of adverse interests by different offices of a large law firm,
Westinghouse Electric Corp.
v,
Kerr-McGee Corp.,
In 1975 the Committee on Ethics and Professional Responsibility of the American Bar Association turned its attention to the acceptability of screening in its Formal Opinion No. 342. The specific question under consideration was whether Disciplinary Rule 5-105(D) (“If a lawyer is required to decline employment or to withdraw from employment under a disciplinary rule, no partner, or associate, or any other lawyer affiliated with him or his firm, may accept or continue such employment”) applied in the case of the many former government attorneys now in private practice. The Committee stated that it did not interpret DR 5-105(D) to require disqualification of an entire law firm if the former government attorney had been screened from any direct or indirect participation in the matter. ABA, Comm, on Ethics and Professional Responsibility, Formal Op. 342 (1975) at 11. The Illinois State Bar Association has taken a similar approach in its Professional Ethics Opinion No. 762, specifically in relation to former Assistant State’s Attorneys, holding that the other attorneys in the law firm which such an attorney had joined were not automatically disqualified from litigation in which the former Assistant State’s Attorney had participated, so long as the former government attorney did “not work on such matters in any way for his law firm or otherwise use any knowledge he gained for the benefit of the firm.” ISBA, Professional Ethics Op. 762 (1982). Cf. ISBA, Professional Ethics Op. 811 (1982).
Scholarly commentary has also generally approved screening as a device to avoid the wholesale disqualification of law firms with which former government attorneys are associated. See, e.g., Comment, Disqualification of Counsel: Adverse Interests and Revolving Doors, 81 Colum.L.Rev. 199 (1981); Comment, Ethical Problems for the Law Firm of a Former Government Attorney: Firm or Individual Disqualification?, 1977 Duke L.J. 512; Liebman, The Changing Law of Disqualification: The Role of Presumption and Policy, 73 Nw.U.L.Rev. 996 (1979); Comment, The Future of the Chinese Wall Defense to Vicarious Disqualification of a Former Government Attorney's Law Firm, 38 Wash. & Lee L.Rev. 151 (1981).
*259
The screening arrangements which courts and commentators have approved, however, contain certain common characteristics. The attorney involved in the
Armstrong v. McAlpin
case, for example, was denied access to relevant files and did not share in the profits or fees derived from the representation in question; discussion of the suit was prohibited in his presence and no members of the firm were permitted to show him any documents relating to the case; and both the disqualified attorney and others in his firm affirmed these facts under oath.
In the case at hand, by contrast, Mr. Seidler joined the firm of Rudnick & Wolfe on February 2, 1981; yet screening arrangements were not established until the disqualification motion was filed in August 1981. See Inter-Office Memorandum, August 26, 1981, in Appellant’s App. at 28. Although Mr. Seidler states in his affidavit that he did not disclose to any person associated with the firm any information about the validity of the Agreement or the County’s strategy on any matter relevant to this litigation, no specific institutional mechanisms were in place to insure that that information was not shared, even if inadvertently, between the months of February and August. 3 Recognizing that this is an area in which the relevant information is singularly within the ken of the party defending against the motion to disqualify and in which the reputation of the bar as a whole is implicated, we hold that the district court did not abuse its discretion in extending the disqualification of Marc Seidler to the entire firm of Rudnick & Wolfe. The district court order is therefore
Affirmed.
Notes
. Herbert L. Nudelman, now a senior partner at Rudnick & Wolfe, had represented LaSalle National and Lake Properties in relation to the Heartland property since 1972 and brought the clients with him to Rudnick & Wolfe when he joined the firm in 1976.
. There are six attorneys in the Civil Division of the Lake County State’s Attorney’s office.
. We, of course, recognize that our analysis frequently requires identification of problems at the time attorneys are hired. In some cases, this may be difficult or even impossible. Nevertheless, we believe that timely screening arrangements are essential to the avoidance of firm disqualification.
