Checklist · Legal Ethics

Clearing a Conflict, Screening a Lateral, or Moving to Disqualify: A Practical Checklist

18 U.S.C. § 207

Type
Checklist
Jurisdiction
National
Date
2024-07-23
Topic
Legal Ethics

This checklist covers the three conflicts tasks a practice performs most often: clearing a conflict at intake, screening a lateral hire, and responding to or bringing a disqualification motion. It is organized in the sequence each task actually unfolds, from the first intake call through the written record that survives the engagement by a decade. Every item states the action and the reason it exists. Work through the intake sections before the engagement letter goes out, the lateral sections before the offer letter goes out, and the motion sections the day the motion is served, because disqualification rulings are effectively unappealable.

Clearing a Conflict, Screening a Lateral, or Moving to Disqualify: A Practical Checklist

Legal Ethics > Conflicts of Interest, Imputation, and Disqualification | Published 23 July 2024 - Updated 27 November 2025 | UpLaw - uplaw.us

Task one: intake and clearance

Before the substantive conversation

Give the prospective-client notice. Tell the caller, before they describe the matter, that no confidential information should be shared until conflicts are cleared. Record that you gave it.

Capture only what the check requires at first: the proposed client's full legal name, its parent and affiliates, all adverse parties and their affiliates, and the nature of the matter.

Ask who else might become a party. Co-defendants, indemnitors, insurers, guarantors, and likely third-party defendants all belong in the check.

Ask about the corporate family expressly. "Who owns you, and what do you own?" A check run only on the named entity produces false clears.

Running the check

Search the full firm database — all offices, all practices, open and closed matters.

Search name variants, former names, trade names, and abbreviations. Databases fail on spelling more often than on logic.

Search adverse parties as well as the proposed client.

Search individuals where officers, directors, or principals may become parties or witnesses.

Reviewing the hits

Classify each hit: current client, former client, prospective client, or unrelated.

If current, determine whether the new matter is directly adverse or creates a material limitation. Relatedness is irrelevant to direct adversity.

If former, apply the substantial relationship test in writing: describe the prior matter, the categories of confidential information it would ordinarily have generated, and whether that information would materially advance the new client's position.

If prospective, determine whether significantly harmful information was received.

Check whether any lawyer or staff member carries a disability from a prior firm or from government service.

Check outside counsel guidelines for every affected client. They frequently impose broader restrictions than the rules.

Deciding

Determine consentability before seeking consent. A conflict is not consentable if the lawyer cannot reasonably believe competent and diligent representation is possible for each client, if the representation is prohibited by law, or if one client would assert a claim against another in the same litigation.

Route the decision to someone independent. The person clearing should not be the person whose compensation depends on the matter proceeding.

Consider restructuring rather than declining: a narrower scope, a different client entity, or referral of the conflicted portion to other counsel.

If consent is sought, prepare a disclosure that states the specific conflict, the material risks, the reasonably available alternatives, and the consequences if the conflict later becomes non-consentable. Confirm in writing.

Do not drop a client to take a better matter. The hot potato doctrine will treat the dropped client as current.

Documenting

Write the clearance memorandum — what was searched, what returned, what analysis was applied, what decision was made, and by whom. Three sentences is enough; nothing is not.

Define the client precisely in the engagement letter, and state the firm's position on affiliates.

Attach any consent and retain it with the file.

Enter the matter in the database with a substantive description. "Advice re: employment matters" tells a reviewer nothing in twelve years; "advice on design of executive incentive compensation plan and related disclosure" tells them everything.

Closing

Send a dated closing letter when the matter ends and record the closing date. A firm that cannot tell current clients from former ones cannot apply either rule.

Task two: screening a lateral

Before the offer

Obtain the candidate's client and matter list, at the level of detail confidentiality permits.

Run it against the firm's full database, including adverse parties.

Interview the candidate about each hit. The question is factual: did you acquire confidential information material to this matter? Presence at the prior firm is not itself a disability.

Record the interview. The written record is the firm's principal defense if the issue is litigated.

Identify every jurisdiction whose rules apply, and confirm that screening is permitted there for this category of conflict. This is the least uniform area in professional responsibility.

Consider consent as an alternative. With a sophisticated affected client, asking is often faster and more durable than defending a screen.

Make clearance a condition of the offer. A lateral who cannot be cleared after arriving is an expensive problem with no clean solution.

On or before day one

Issue the written screening memorandum identifying the screened person, the excluded matters, the personnel working on them, and the prohibitions.

Apply technical access controls — document management, billing system, email distribution lists, shared drives, physical files. This is the element most often missing when a screen fails.

Obtain a written undertaking from the screened person.

Confirm no fee apportionment from the screened matters.

Send prompt written notice to the affected former client, describing the screening procedures and undertaking to respond to inquiries and provide compliance certifications.

Retain proof that the access controls were actually applied. A system report is worth more than a memorandum.

Ongoing

Certify compliance at intervals and at the conclusion of the matter.

Do not consult the screened lawyer, even on a technical point only they understand. Consultation destroys the screen and can impute the disqualification retroactively.

Screen non-lawyer laterals on the same terms. Paralegals and litigation support staff carry confidences.

When a lawyer departs, record the matters they worked on so the firm can answer accurately when their new firm calls.

Task three: former government lawyers

Run both analyses. The professional conduct rules and the statutory restrictions cover different conduct, and neither subsumes the other.

Identify personal and substantial participation in specific matters while in government.

Identify confidential government information about persons whose adversaries the firm may represent.

Check the statutory restrictions. 18 U.S.C. § 207 restricts former officers and employees from representing others before the government in matters in which they participated. 18 U.S.C. § 203 and 18 U.S.C. § 205 address compensation for and representation in matters affecting the government. 18 U.S.C. § 208 addresses acts affecting a personal financial interest.

Check agency practice standards. 5 U.S.C. § 500 addresses practice before agencies, with executive branch standards at 5 C.F.R. Part 2635 and Treasury practice standards at 31 C.F.R. Part 10.

For judicial officers, review 28 U.S.C. § 455 on disqualification and 28 U.S.C. § 144 on the affidavit of bias, with judicial conduct standards at 28 C.F.R. Part 45.

Confirm federal appearance requirements under 28 U.S.C. § 1654, and note that 28 U.S.C. § 530B subjects government attorneys to the ethics rules of the state where they practice.

Where tax practice is involved, note the limited practitioner confidentiality protection at 26 U.S.C. § 7525, which is narrower than the attorney-client privilege and inapplicable in criminal matters.

Screen and notify. Screening is generally more readily available for government conflicts, but it still requires timeliness, technical implementation, no fee apportionment, and prompt written notice to the agency.

Task four: joint representation

Evaluate divergence probability before accepting. Some joint representations are routine; criminal co-defendants and entity-plus-officer in an investigation are not.

State the no-secrets rule in the engagement letter. As between joint clients, information relevant to the matter must be shared.

State the privilege consequence. Communications are privileged against outsiders but generally not between the joint clients if they later become adverse.

State the withdrawal consequence. If interests diverge materially, the lawyer may have to withdraw from representing everyone.

Obtain informed consent confirmed in writing from each client.

Warn constituents in entity matters before they disclose anything, that the lawyer represents the entity and not them individually.

Monitor for divergence continuously, and act the moment it appears. A lawyer holding one client's secret from another has usually already breached a duty.

In criminal matters, raise the issue on the record. Under Holloway v. Arkansas a timely objection followed by the court's failure to inquire requires reversal; under Cuyler v. Sullivan an unobjected conflict requires a showing of adverse effect; and Mickens v. Taylor narrows the automatic consequence of a failure to inquire. Strickland v. Washington supplies the surrounding standard. Expect that the court may reject a waiver under Wheat v. United States.

Understand the limits of the client's claim on loyalty. Nix v. Whiteside confirms that refusing to present perjured testimony is not ineffective assistance.

Check whether counsel can be paid at all. Caplin & Drysdale, Chartered v. United States permits forfeiture of tainted assets intended for counsel; Luis v. United States protects untainted assets needed to retain counsel.

Task five: bringing or defending a disqualification motion

If you are moving

Move promptly. Delay is the most common basis for denial, and courts scrutinize timing for tactical purpose.

Confirm standing. Ordinarily only a current or former client may move.

Establish the prior relationship with engagement letters, billing records, and correspondence.

Establish the substantial relationship by describing the prior matter and the categories of information it would ordinarily have produced — not the content of the confidences.

Address the remedy. Explain why a screen or a lesser limitation is inadequate, because courts prefer proportionate remedies.

Anticipate the prejudice argument — the stage of the case, the cost of replacement counsel, and any delay your motion will cause.

If you are defending

Put the entire record before the court the first time. Engagement letters, closing letters, the clearance memorandum, the screening memorandum, and system access reports.

Attack the substantial relationship by showing what the prior representation actually involved and why that information does not bear on the present matter.

Raise waiver where the movant knew and delayed.

Raise tactical motive where the timing supports it.

Offer a lesser remedy — a screen, a limitation on the lawyer's role, or separate counsel for a discrete task such as cross-examining a client-witness.

Both sides

Assume the ruling is final. Firestone Tire & Rubber Co. v. Risjord held denial of civil disqualification is not immediately appealable, Richardson-Merrell Inc. v. Koller held the same for a grant, and Mohawk Industries, Inc. v. Carpenter applied the reasoning to privilege disclosure orders.

Watch the sanctions track. 28 U.S.C. § 1927 imposes costs for unreasonable and vexatious multiplication of proceedings; Chambers v. Nasco, Inc. recognizes inherent sanctioning authority; Goodyear Tire & Rubber Co. v. Haeger limits inherent-power fee awards to the causally linked excess; Cooter & Gell v. Hartmarx Corp. and Business Guides, Inc. v. Chromatic Communications Enterprises, Inc. govern certification sanctions; Degen v. United States cautions against overbroad inherent-power remedies; and 28 U.S.C. § 2072 supplies the rulemaking authority behind the procedural rules.

Preserve the privilege analysis. Upjohn Co. v. United States, Hickman v. Taylor, Swidler & Berlin v. United States, and United States v. Zolin define what the prior representation protects, which is the substance of the test.

Remember the regulatory frame. Goldfarb v. Virginia State Bar confirms that the practice of law is subject to the antitrust laws, which is why bar regulation addresses conduct rather than economics.

The short version

One — give the prospective client notice before they talk. Cheapest conflict to prevent, most expensive to litigate.

Two — run the corporate family, not the name. False clears come from incomplete intake, not from bad doctrine.

Three — write the substantial relationship analysis down. If you cannot write the paragraph, do not clear the conflict.

Four — screen laterals before day one, technically, with notice. A screen is an access control, not a memorandum.

Five — close matters formally. A firm that cannot tell current from former clients cannot apply either rule.

Six — treat a disqualification ruling as final. There is no interlocutory appeal in either direction.

Appendix A: the intake questions that actually matter

Most conflicts failures trace to a question nobody asked at intake. These are the ones worth building into the form.

Full legal name of the proposed client, including entity type and state of organization.

Parent entities, all the way up, and the ultimate beneficial owner where identifiable.

Subsidiaries and affiliates the client considers part of its group.

Whether the client expects the firm to treat affiliates as clients. Ask directly; do not assume.

All adverse parties, with the same corporate family detail.

Parties likely to be joined — co-defendants, indemnitors, insurers, guarantors, contribution targets.

Individuals who may be parties or key witnesses, including officers and directors on both sides.

The identity of opposing counsel, which occasionally reveals a relationship.

Any prior relationship between the proposed client and the firm, however informal.

Whether the client has outside counsel guidelines, and a copy of them.

Whether any lawyer or staff member proposed for the team has a prior relationship with any party.

The substantive nature of the matter, in enough detail that a reviewer in ten years can apply the substantial relationship test.

Why the last item matters most. Matter descriptions are the firm's institutional memory. A generic description makes every future former-client analysis a guess, and guesses lose disqualification motions.

Appendix B: engagement letter provisions that prevent conflicts

Client identification clause. "The firm's client in this engagement is [entity], and not its parents, subsidiaries, or affiliates."

Affiliate adversity clause. Whether and how the firm may act adverse to affiliates of the client.

Scope clause. A defined scope limits the matters in which the firm can be said to have acquired confidential information.

Advance waiver clause, where the client is sophisticated: identify categories of future matters, the types of adversity contemplated, the exclusion of substantially related matters, and the client's opportunity to consult independent counsel.

Joint representation clause, where applicable: the no-secrets rule, the privilege consequence between joint clients, and the withdrawal consequence on divergence.

Constituent warning, in entity engagements: the firm represents the entity, individual constituents should obtain their own counsel where their interests may diverge.

Screening clause, where a lateral or government conflict is being managed by screen: describe the screen and the notice given.

Termination and closing clause. State that the engagement concludes on completion of the defined scope and that the firm will send a closing letter, which fixes the current-to-former transition.

File retention clause. What the firm keeps, for how long, and what happens afterward. This determines what evidence exists when a motion arrives a decade later.

Why these belong in the engagement letter rather than a policy manual. Because the client agreed to them. A firm position stated only internally has no effect on a disqualification motion; the same position agreed in writing frequently decides it.

Appendix C: what to do in the first hour after a disqualification motion arrives

Hour zero to fifteen minutes. Read the motion and identify precisely which representation is said to create the conflict, and whether the movant claims current-client or former-client status.

Fifteen to thirty minutes. Pull the database record for the asserted prior relationship: engagement letter, closing letter, matter description, billing narratives, responsible lawyers.

Thirty to forty-five minutes. Identify every person at the firm who touched that matter and confirm whether any of them is working on the current one.

Forty-five to sixty minutes. Decide whether an immediate protective step is warranted — an interim screen, removal of a lawyer from the team, or suspension of access — and implement it before responding. Steps taken before the response are far more persuasive than steps promised in it.

Then, before drafting. Notify the client, notify the firm's general counsel, and notify the malpractice carrier if the facts suggest exposure. Assess whether the conflict is real, because a firm that fights a genuine conflict and loses is worse off than one that addresses it promptly.

Do not, under any circumstances, discuss the substance of the prior matter with anyone on the current team while the analysis is pending. That single conversation converts a defensible position into an indefensible one.

Appendix D: five failures and their one-line fixes

The database has no closing dates. Every former-client analysis becomes a guess. Fix: mandatory closing letter with a recorded date, enforced at the billing system level.

Matter descriptions are generic. The substantial relationship test cannot be applied years later. Fix: require a substantive description at matter opening and reject the entry without one.

Screens are announced by email. They fail on the first challenge. Fix: assign implementation to operations with system access, and require a report proving each control was applied.

Clearance sits with the originating lawyer. The incentive runs the wrong way. Fix: route every hit to a general counsel's office or committee with authority to decline.

Outside counsel guidelines live in a contracts folder. The firm clears under the rules and breaches the contract. Fix: load guideline restrictions into the conflicts system so they appear alongside the database hits.

Each of these is an operational fix costing a few hours of process design, and each eliminates a category of failure that no amount of doctrinal skill can address after the fact.

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