The Screening Exception

Rule 1.10(a) imputes a lawyer’s prohibition to everyone in the firm, and paragraph (a)(2) carves out the lawyer who arrives from another firm. The baseline provides that while lawyers are associated in a firm, none of them may knowingly represent a client when any one of them practicing alone would be barred by Rule 1.7 or Rule 1.9, unless an exception applies.¹ The lateral hire is the case the exception addresses: the lateral’s work for a client at a prior firm would bar the lateral from a matter, and the question is whether that bar spreads to the new firm.

The spread can be expensive. A firm that hires a lawyer who carries disqualification to every colleague may have to withdraw from longstanding clients, and the cost falls on the firm and also on the clients who have come to rely on its lawyers.² The screening exception lets the firm avoid that result on three conditions: the lateral is timely screened from the matter and apportioned no part of the fee; the former client receives prompt written notice; and certifications of compliance follow when the former client asks and when the screening ends.³ Each condition answers a weakness in an arrangement that depends on a firm policing itself out of the former client’s sight. The first keeps the lateral away from the matter and from its profits, the second tells the former client the screen exists, and the third lets the former client learn whether it held.

Whether a screen helps at all depends on the jurisdiction. A majority of states now allow ethical screening, especially after the Model Rules were revised to permit it, but a substantial minority adhere to the traditional rule that imputed disqualification cannot be avoided that way.⁴ A question that tells you to apply the Model Rules makes screening available. A question set in a minority jurisdiction leaves the imputation in place, however careful the firm’s screen.

The exception consists of a predicate and three conditions, and the conditions are cumulative: a firm that satisfies two of the three has not escaped imputation.⁵ The predicate comes first, because the conditions have nothing to cure until a qualifying conflict is in place.

The Prior-Firm Predicate

The exception opens with a threshold, and a firm that cannot meet it never reaches the screening conditions. It applies only where “the prohibition is based upon Rule 1.9(a) or (b) and arises out of the disqualified lawyer’s association with a prior firm.”⁶ The first condition follows immediately: the lawyer must be timely screened from any participation in the matter and be apportioned no part of the fee.⁷ Every bar that fails the threshold stays imputed under the baseline.⁸

The threshold has two parts. The bar must first be a former-client prohibition. Rule 1.9(a) forbids a lawyer who formerly represented a client in a matter from representing another person in the same or a substantially related matter in which that person’s interests are materially adverse to the former client, unless the former client gives informed consent, confirmed in writing.⁹ Rule 1.9(b) reaches the lawyer whose former firm, rather than the lawyer personally, represented the client: the lawyer may not knowingly take the same or a substantially related matter that is materially adverse to that person if the lawyer acquired information protected as confidential about that person.¹⁰ The bar must second trace to the lateral’s time at a prior firm, so a prohibition that first arises at the new firm falls outside the exception.

The line follows the purpose of the former-client rules. Their primary purpose is to protect against adverse use of the former client’s confidential information for the advantage of a current client,¹¹ and a screen aims at that risk by instructing the lateral not to discuss the former client’s matter with lawyers at the new firm.¹² A Rule 1.7 prohibition lies outside the predicate, so a lateral who brings a conflict with a current client of the new firm gets no help from the exception, and the baseline imputation stands.¹³ Former government lawyers are a separate case. Under Rule 1.11(b), when a former public officer is disqualified because of personal and substantial participation in the matter, every other lawyer in the firm is likewise disqualified,¹⁴ and Rule 1.11(c) bars the firm from a representation adverse to a person about whom the lawyer obtained confidential government information that could be used to that person’s material disadvantage.¹⁵ Rule 1.11’s own terms govern those conflicts, and this analysis should not be carried over to them.

An exam stem that features a lateral and a screen invites a reflex toward Rule 1.10(a)(2). The sound habit is to classify the conflict first and ask whether it is a former-client bar from the prior firm.

Before any screen matters, the question is whether the lateral is personally disqualified. Run the Rule 1.9 inquiry first: is the new matter the same as or substantially related to the former client’s matter, and are the new client’s interests materially adverse to that former client?¹⁶ If so, the lateral’s own knowledge decides the outcome. A lawyer who did not personally participate in a client matter and did not otherwise acquire confidential information has not changed sides, even after leaving a firm on one side of a dispute for a firm on the other.¹⁷ With no personal prohibition, nothing is imputed and nothing needs screening.

Because an outsider cannot see what a lateral remembers, the analysis starts from a presumption that the moving lawyer acquired confidential information about the old firm’s clients. The lateral may rebut it, usually by affidavit, by showing that no work was done for the client or on the particular matter, so that the lawyer could not have learned confidential information about that client. A lateral who makes that showing escapes personal disqualification.¹⁸ How the old firm was organized affects how persuasive the showing is. If the firm was open, with each lawyer having general access to all client files and regularly participating in discussions of client matters, the lawyer will be presumed to have acquired information about all of its clients. If the firm was divided by practice, office, or structure so that a lawyer reached only a limited number of files, it may be inferred that the lawyer knows the clients actually served and not the others.¹⁹

A lateral who cannot rebut the first presumption is presumed to share the confidential information with the other lawyers at the new firm.²⁰ That second presumption spreads the personal bar across the firm, and it can be rebutted if, and only if, the jurisdiction recognizes screening to block imputation in this situation and the screen is established in a timely manner. Rule 1.10(a)(2) states the Model Rules position.²¹ A lateral who rebuts the first presumption has nothing to share, so a screen would protect no one.

An illustration shows the steps in order. The firm of White & Pinkman represented Fring, a local businessman, in negotiations to acquire a commercial laundry, and its corporate lawyers handled the deal. Fring gave the firm confidential information about his financial dealings. An associate, Goodman, defended Fring in slip-and-fall cases arising at a chain of restaurants Fring owned. Goodman had no part in the laundry negotiations and learned little about Fring’s business interests, since they were almost never relevant to those cases. Goodman then joined Hamlin & McGill, which was representing the seller of the laundry business in contentious negotiations with Fring.²² Goodman’s old firm represented Fring in the same matter, and the seller’s interests are adverse to him, so Rule 1.9(b) is the rule in play. It reaches Goodman only if he acquired confidential information about Fring.²³ Goodman can try to rebut the presumption by showing that his work for Fring was confined to the personal-injury cases. If he succeeds, he escapes personal disqualification, nothing is imputed to Hamlin & McGill, and no screen is needed.²⁴

Change one fact, and the result changes. Had Goodman worked on the laundry negotiations, he could not show that he never saw Fring’s confidences, the presumption would stand, and he would be presumed to share them with his new colleagues. Hamlin & McGill could then protect its work for the seller only if it practiced in a jurisdiction that recognizes screening and had put a timely screen in place.²⁵ The predicate would be met in that version, because Rule 1.9(a) would bar Goodman on the strength of his time at the old firm, and the conditions of the exception would come next.

Exam Analysis Steps

Because the predicate depends on who the lateral is and what the lateral knows, it is best run before any screening condition is considered. The steps are these:

Identify the matter the new firm proposes to take and the former client whose interests are materially adverse, and confirm under Rule 1.9 that the matters are the same or substantially related.
Determine whether the lateral personally represented that former client under Rule 1.9(a) or, while the old firm represented the client, acquired confidential information about the client under Rule 1.9(b).
Apply the presumption that the lateral acquired the old firm’s client information, and ask whether the lateral can rebut it with proof of no work for the client or on the matter, keeping in mind whether the old firm was run openly or in compartments.
If the presumption is rebutted, conclude that nothing is imputed. If it stands, confirm that the bar is a Rule 1.9 prohibition arising from the prior firm and not a Rule 1.7 conflict, and only then move to the screening conditions.

Timely Screen, No Fee

The first of the three conditions sits in Rule 1.10(a)(2)(i): “the disqualified lawyer is timely screened from any participation in the matter and is apportioned no part of the fee therefrom.”²⁹ That sentence holds two requirements, one aimed at the flow of information and the other at the flow of money, and the firm must satisfy both. A firm that meets only one has not qualified, so the baseline in Rule 1.10(a) continues to impute the lateral’s prohibition to every lawyer in the firm.³⁰ Both requirements also presuppose the predicate, because a screen can relieve only a Rule 1.9 bar that arises from the lateral’s association with a prior firm.

A screen works by isolation. In a jurisdiction that permits screening, it instructs the newly hired lawyer not to discuss the representation of the former client with lawyers at the new firm.³¹ The text demands isolation from “any participation,” and that phrase reaches every contact with the matter, including a brief consultation, a hallway conversation about strategy, or a look at the file. What gives a screen content is separation in fact, not the lateral’s promise to behave, so instructions to the matter team and restricted access to the files are the kind of measures that count. How much a firm must do depends on how it works. A firm whose lawyers share one floor and one document server has more to guard against than a firm whose matter team sits in its own office.

Timing carries real weight, because conflicts rules aim at the risk of compromised duties and not at harm already done, so there is no such thing as a “potential” conflict.³² The lateral’s bar is a live one from the day the lateral joins, and a screen is timely only if it keeps the lateral out of the matter from the start. A screen assembled after the lateral has already taken part cannot be a screen from “any participation,” and a screen that appears only after the former client objects has come after the period in which information could move. When the firm knows before the hire that the lateral’s history creates a bar, isolation belongs in place by the lateral’s first day.

Hypothetical Illustration

Lawyer M joins a firm in March after working at a prior firm on a distributor’s supply contract. The new firm represents a retailer in a suit against that distributor over the same contract, so M would be barred by Rule 1.9(a) practicing alone. M sits in on strategy meetings in March and April. In June, after the distributor’s counsel announces a motion to disqualify, the firm circulates a memo isolating M and locking the files. The screen came after M had already participated, so it is untimely and the condition fails.

A second firm hires Lawyer P, who has the same history with the same distributor. Its pre-hire conflict check flags the problem, and before P’s first day the firm circulates a memo barring anyone from discussing the matter with P, restricts access to the paper and electronic files, and tells P in writing that P’s compensation will exclude anything attributable to the matter. The isolation began before any participation, so the screen is timely.

The two firms may have drafted nearly identical memos. What moved the result is the date isolation began, and M had already worked on the matter, so no later memo could restore the separation the rule demands. An exam stem that describes an elaborate screen invites the conclusion that this condition is met, and the dates in the stem decide whether that conclusion holds.

The fee requirement works on motive where the screen works on opportunity. A screen relies on the lateral’s own restraint, which the former client cannot observe, and a lateral whose income rises when the firm wins has a reason to help. Withholding the matter’s fee from the lateral removes that reason at its source, so the screen has to resist only accident and not self-interest. The text bars apportioning any part of the fee to the lateral, so the practical test is whether any amount the lateral receives is calculated from, or varies with, the fee on the screened matter. A year-end bonus set as a percentage of the matter’s fees fails that test. A salary fixed before the matter arrived and unaffected by it does not apportion any part of that fee.

In both scenes the isolation procedures were identical, and the difference lay in the connection between the lateral’s pay and the matter. A firm cannot offset a defect in one requirement with excellence in the other.

Exam Analysis Steps

Because the first condition joins a timing question to a compensation question, it is best checked in a fixed order before the firm moves to the other conditions. The steps are these:

Fix the date on which the firm knew that the lateral’s prior work created a Rule 1.9 bar.
Compare that date with the date the isolation procedures took effect, and treat a screen that began after the lateral had already participated as untimely.
Test whether the procedures isolate the lateral from every form of participation in the matter, including discussion, assignments, and access to the files, given how the firm is organized.
Examine every channel through which the lateral is paid and ask whether any amount is tied to the fee from the matter, treating a salary fixed independently of the matter as consistent with the rule.
Conclude that the first condition is met only if the screen is timely and the lateral receives no part of the fee, and only then turn to the notice and certification conditions.

A firm that meets this condition must still satisfy the remaining conditions of Rule 1.10(a)(2), and the exception is available only in a jurisdiction that permits screening of laterals.³³

Written Notice to Former Clients

The second condition sits in Rule 1.10(a)(2)(ii): written notice must be promptly given to any affected former client “to enable the former client to ascertain compliance with the provisions of this Rule.”³⁵ Two phrases carry the condition. Affected former client names who must be told, and the purpose clause says why: the former client is to be able to check whether the firm is doing what it claims. The screen operates entirely inside the firm, where no outsider can watch it work. The notice carries a report of that arrangement to the one person with the strongest reason to care whether it holds.

The rule fixes the content of the notice and lists four things it must include:³⁶

a description of the screening procedures the firm has employed;
a statement of the firm’s and of the screened lawyer’s compliance with the Rules;
a statement that review may be available before a tribunal; and
an agreement by the firm to respond promptly to any written inquiries or objections by the former client about the screening procedures.

Each item answers a question the former client could not otherwise answer. The description supplies the facts, such as who is isolated and what instructions the other lawyers received, and those facts are what the former client needs in order to judge the procedures. The statement of compliance commits the firm and the screened lawyer, in writing, to the claim that the procedures are being followed. The statement about tribunal review tells the former client where to turn if the answers prove unsatisfactory, and the promise to respond gives the former client a way to ask questions before going that far. A written description also gives later events something to be measured against, because a departure from procedures the firm itself described is harder to explain than a departure from procedures nobody stated.

The recipient is the affected former client, whose matter at the prior firm produced the lateral’s Rule 1.9 prohibition. The firm is explaining its internal arrangements to the party its own client is opposing, and that is the price of the exception: a screen the opposing side cannot check asks that side to take the firm’s word. The text calls for notice and for the firm’s agreement to respond, and it says nothing of the former client’s approval.³⁷ If the former client objects, the firm must answer, and the reference to tribunal review marks where the disagreement can go next.

The word promptly ties this condition to the timing of the first. The text sets no number of days, so promptness is measured against the purpose.³⁸ The former client’s ability to object or seek review matters most while the matter is young and the firm is still staffing it. A screen that works but is disclosed months later leaves the former client unable to check anything during the stretch when the risk is highest. The practical rule is to send the notice with the screen, since the conflict check that reveals the lateral’s bar is also the moment the firm learns whom to notify. Firms with a careful screen sometimes treat the notice as a courtesy to be sent when convenient, and the facts below show why that instinct costs them the exception.

A notice that arrives on time can still fail on content. A letter that says only that the lateral has been walled off omits a description of the procedures, says nothing of tribunal review, and promises no answers to inquiries. All four items are required, and a firm cannot make up for one omitted item by elaborating on another.

Satisfying this condition does not finish the analysis, because the conditions are cumulative. A complete notice does not rescue a screen that came too late or a lateral who shares in the fee, and the exception exists only in a jurisdiction that allows screening of laterals.³⁹ The third condition concerns what the firm must provide after notice: certifications of compliance.

Certifications of Compliance

The third condition sits in Rule 1.10(a)(2)(iii). Certifications of compliance with the Rules and with the screening procedures must be provided to the former client by the screened lawyer and by a partner of the firm, “at reasonable intervals upon the former client’s written request and upon termination of the screening procedures.”⁴¹ That sentence answers three questions: who must certify, what the certification must address, and when it is due. The first two conditions concern what the firm does at the start, when it builds the screen and describes it to the former client. The third runs through the life of the screen, because a description given once cannot show whether the arrangement kept working. The notice states what the firm intends to do, and a certification reports whether the firm did it.

The rule names two certifiers, and the word “and” between them means each must supply a certification. The reason lies in the two directions in which information can leak from a screen. The screened lawyer might pass along what the lawyer knows, and colleagues might pull the lawyer into the matter or let a file reach the lawyer’s desk. The screened lawyer can vouch for personal conduct but cannot know what was said in meetings the lawyer did not attend. A partner is positioned to speak to the firm’s procedures and to what the matter team actually did. Neither can speak for the other, and each who signs puts a personal word behind the arrangement, which is a stronger assurance than a firm-level promise that no individual signs.

What the signers certify has two objects: compliance with the Rules and compliance with the screening procedures.⁴² The first reaches the conditions of Rule 1.10(a)(2) themselves, such as the isolation of the lateral and the absence of any share of the fee. The second reaches the specific measures the firm described in its notice, which must set out the screening procedures and affirm the firm’s compliance.⁴³ A former client who lays a certification beside the original notice can see whether the arrangement still matches its description, and a firm that has quietly loosened a procedure cannot truthfully certify compliance with it.

Two triggers govern timing. Periodic certifications depend on the former client’s written request, because the text ties them to a request and supplies no calendar of its own.⁴⁴ A firm that sends nothing while the former client has asked for nothing has not failed that part of the condition. A firm that ignores a written request has not provided certifications upon the former client’s written request. The phrase reasonable intervals sets no number of days, so the interval is judged against the purpose: a certification helps only if it arrives while a lapse can still be repaired.

The second trigger is the end of the screening procedures. Commentary reads the rule to call for certifications at reasonable intervals if the former client so requests and again when screening is terminated, presumably when the matter concludes.⁴⁵ Because termination is its own trigger, the firm owes the final certification even when the former client made no request during the matter. The reason is a gap that periodic certifications leave. Each one covers only the time up to its date, so the stretch between the last request and the lifting of the screen goes unreported, and once the screen is lifted the former client has nothing left to ask about. A final certification from the screened lawyer and a partner covers the whole period and closes the loop.

An exam stem that says the firm “responded with a certification” invites a check on who signed and when, and failing facts make the point most clearly.

Hypothetical Illustration

A lawyer who once worked on a bank’s loan portfolio at a prior firm joins a firm that represents a developer against the bank, so the lateral is barred by Rule 1.9(a) practicing alone. The firm’s screen was timely, the lateral receives no part of the fee, and the notice went out promptly. Several months later the bank writes to the firm asking for confirmation that the screen is working. A partner replies with a signed letter certifying compliance with the Rules and with the screening procedures. The screened lawyer provides nothing, on the view that the partner speaks for the firm. The certification condition fails because the rule requires a certification from the screened lawyer as well as from a partner. The same result follows if the firm never answers the bank’s written request at all.

The two scenes differ in who signed and in whether the firm met the written request and the end of the screen. The quality of the screen was never at issue in either, which is why a careful firm can still lose the exception on this condition alone. The conditions are cumulative, so a flawless screen, no fee, and a timely notice cannot offset a missing certification.⁴⁶ When any condition fails, the baseline in Rule 1.10(a) governs again and the lateral’s prohibition is imputed to every lawyer in the firm.⁴⁷ The exception also exists only in a jurisdiction that allows screening of lateral hires.⁴⁸

Exam Analysis Steps

Because the certification condition depends on who signs and on two separate triggers, it is best checked after the earlier conditions, in a fixed order. The steps are these:

Confirm that the jurisdiction permits lateral screening and that the screen, no-fee, and notice conditions are already met, since certifications complete the exception and cannot create it.
Ask whether the former client has made a written request for certification, and if so whether the firm responded within a reasonable interval.
Verify that the response included a certification from the screened lawyer and a separate certification from a partner of the firm, each addressing compliance with the Rules and with the screening procedures.
When the screening procedures end, confirm that final certifications from both signers were provided to the former client, whether or not the former client asked earlier in the matter.
If any step fails, conclude that the exception is unavailable and that the lateral’s prohibition remains imputed to the firm under Rule 1.10(a).