A conflict of interest waiver is a written agreement in which a client, after receiving full disclosure of a professional’s divided loyalties, consents to let that professional continue with the work anyway. Under the framework most states follow, the waiver has to do three things at once: describe the conflict accurately, spell out the risks the client is accepting, and record the client’s informed consent in writing. Skip any piece and the waiver may not survive later scrutiny.
When a Waiver Is Even an Option
Before drafting anything, figure out whether the conflict can be waived at all. Under ABA Model Rule 1.7, some conflicts are off-limits regardless of what the client is willing to sign.1American Bar Association. Model Rules of Professional Conduct Rule 1.7 – Conflict of Interest: Current Clients A conflict is non-waivable when the representation is prohibited by law, when the same lawyer would be arguing both sides in the same proceeding, or when no reasonable lawyer would believe competent representation is possible.
Everything else is potentially waivable, but the standard is objective. The professional’s belief that they can still deliver competent, diligent service to every affected party has to be one a disinterested lawyer looking at the same facts would share. A gut feeling that things will work out is not enough.
The former-client situation follows a parallel path under Model Rule 1.9. A lawyer taking on a new matter substantially related to a prior engagement, where the new client’s interests are adverse to the former client’s, needs the former client’s informed consent, confirmed in writing.2American Bar Association. Model Rules of Professional Conduct Rule 1.9 – Duties of Former Clients The former client decides. If they refuse, the new engagement cannot go forward.
What the Disclosure Must Cover
The waiver stands or falls on the disclosure that comes before it. The ABA defines “informed consent” as agreement given only after the lawyer has communicated adequate information about the material risks and the reasonably available alternatives.3American Bar Association. Model Rules of Professional Conduct – Rule 1.0 Terminology Vague reassurances do not qualify.
A proper disclosure walks the client through three things.
The nature of the conflict. Who the competing parties are, what duties pull in different directions, and why the situation creates divided loyalty. A lawyer representing two business partners in a negotiation, for example, has to explain that they cannot advocate for either partner’s individual interests if the partners disagree about profit allocation.
The material risks of proceeding. In a joint representation, the biggest one is the loss of confidentiality between co-clients. Information one client shares with the lawyer will generally be accessible to the other, and if the clients later become adversaries, communications from the joint representation will not be protected by attorney-client privilege in a dispute between them. The lawyer also has to explain the possibility of being forced to withdraw from representing everyone if the conflict becomes unmanageable.
The available alternatives. The client has every right to hire a different lawyer or to have independent counsel review the waiver itself. Nothing obligates them to accept the conflicted arrangement to get legal services.
Have this conversation before the joint representation begins, not after. A party who first hears about a conflict weeks into the engagement is in a fundamentally different bargaining position than one who hears about it on day one.
What the Written Consent Should Contain
The waiver document is the record proving that disclosure happened and the client agreed to proceed with full knowledge. Formats vary, but a few elements have to be there for it to hold up.
Start with precise identification. Full names of the parties, case numbers or deal descriptions, and the specific relationship between everyone involved. Ambiguity here creates problems years later when nobody remembers exactly which transaction the waiver covered.
Summarize the disclosures that were made: the nature of the conflict, the risks discussed, and the alternatives presented. This is what establishes what the client actually knew when they signed.
The consent language has to clearly state that the client is choosing to proceed despite the conflict and is giving up the right to later challenge the professional’s involvement based on that issue. Under the ABA framework, consent must be “confirmed in writing,” which means either a document signed by the client or a writing the lawyer promptly sends confirming an oral consent.3American Bar Association. Model Rules of Professional Conduct – Rule 1.0 Terminology If the writing cannot be produced at the moment of consent, the lawyer must transmit it within a reasonable time afterward.
Address what happens if the conflict worsens. A well-drafted waiver includes a provision explaining that the lawyer may have to withdraw from representing all parties if the conflict becomes irreconcilable. Without that language, clients get blindsided when their lawyer suddenly exits. Many lawyers also spell out whether they may continue representing the non-revoking client if one party later withdraws consent, and whether confidential information obtained during the representation can be used after withdrawal. Those forward-looking clauses spare everyone a fight later.
Timing and Delivery
Timing is where people go wrong most often. The waiver has to be executed before the professional begins substantive work on the matter. A waiver obtained after the fact, once the lawyer has already been working under the conflict, faces severe scrutiny in any disciplinary proceeding or malpractice lawsuit. Both electronic signatures and traditional ink signatures satisfy the writing requirement.4Washington Courts. Washington Rules of Professional Conduct – RPC 1.7 Conflict of Interest: Current Clients
Once everyone has signed, distribute copies of the fully executed document to all affected parties so each client has their own record of the terms and scope. The finalized waiver then goes into the client file, or in a corporate setting, the company’s minute book. These documents surface during audits, acquisition due diligence, and disciplinary investigations, sometimes years later. A waiver that cannot be located when needed is nearly as bad as one that never existed.
Advance Waivers of Future Conflicts
Large firms often ask new clients to sign advance waivers at the start of a relationship, consenting to potential conflicts that have not yet materialized. These prospective waivers are permitted, but their enforceability depends on how specific they are and how sophisticated the client is.
ABA Model Rule 1.7 Comment 22 supplies the framework. When a client agrees to consent to a particular type of conflict they are already familiar with, the waiver is likely effective. When the consent is general and open-ended, covering any future conflict of any kind, it is unlikely to hold up because the client could not have understood the material risks of something they could not foresee.5American Bar Association. Model Rules of Professional Conduct: Rule 1.7 Conflict of Interest: Current Clients – Comment A blanket clause reading “client waives all future conflicts” is essentially unenforceable.
Client sophistication matters a great deal. A large company with in-house counsel that routinely retains outside firms is far more likely to give effective advance consent than an individual hiring a lawyer for the first time. Independent review of the waiver strengthens it further, and so does limiting the scope to future conflicts unrelated to the current engagement. No advance waiver, however well drafted, can authorize a conflict that would be non-waivable if it arose today.5American Bar Association. Model Rules of Professional Conduct: Rule 1.7 Conflict of Interest: Current Clients – Comment
Waivers in the Corporate Boardroom
Corporate conflicts follow a different playbook than attorney conflicts, though the core principle is the same: disclose first, then let disinterested parties decide. When a director or officer has a personal financial interest in a transaction the company is considering, most state corporate statutes require a specific approval process to protect the deal from being voided later.
The general framework, reflected in the statutes of most states, works like this. The interested director discloses all material facts about their relationship to the transaction and their interest in it. Then one of three things has to happen: the disinterested members of the board approve the deal, the shareholders approve it with the conflict fully disclosed, or the transaction must be demonstrably fair to the corporation at the time it was authorized.6Delaware Government. Delaware Code Title 8, Chapter 1, Subchapter 4 The interested director can be counted toward a quorum but should not vote.
The recusal process is more structured than people often realize. The conflicted director should leave the room during deliberations and voting, not just abstain. Board materials and minutes relating to that transaction should not be sent to them. Some companies place a disclosure reminder at the top of every meeting agenda and require directors to complete annual conflict questionnaires, updating them whenever circumstances change. The minutes need to reflect the recusal steps so there is a paper trail of compliance.
When a Firm Colleague Is the Source of the Conflict
A conflict belonging to one lawyer in a firm typically spreads to every lawyer in the firm. Under ABA Model Rule 1.10, if any attorney would be disqualified from a matter under Rule 1.7 or 1.9, none of the firm’s lawyers can take it either.7American Bar Association. Model Rules of Professional Conduct Rule 1.10 – Imputation of Conflicts of Interest: General Rule The rule reflects the practical reality that lawyers in the same office share information.
Two paths get around imputation. When a lawyer joins a new firm carrying a conflict from a previous job, the new firm can build an ethical screen: the conflicted lawyer is completely walled off from the matter, gets no share of fees from it, and the affected former client receives written notice describing the screening procedures and a compliance commitment. Compliance certifications from the screened lawyer and a firm partner must be available to the former client at reasonable intervals upon request.7American Bar Association. Model Rules of Professional Conduct Rule 1.10 – Imputation of Conflicts of Interest: General Rule
The second path is the same waiver process used for any current-client conflict: the affected client gives informed consent, confirmed in writing, under the standards of Rule 1.7. That means everything in the disclosure and documentation sections above applies here too.
Revoking a Waiver
A client who consented to a conflict can withdraw that consent at any time, and they can fire the lawyer at any time for any reason. What is not automatic is whether the lawyer can keep representing the other clients afterward.
Under the ABA comments, that question turns on several factors:
- The nature of the underlying conflict
- Whether the revocation stems from a material change in circumstances, such as the clients developing adversarial positions
- What the non-revoking clients reasonably expected when they signed the waiver
- Whether withdrawal would cause material harm to the remaining clients or the lawyer5American Bar Association. Model Rules of Professional Conduct: Rule 1.7 Conflict of Interest: Current Clients – Comment
In many joint representations, revocation forces the lawyer to withdraw from representing everyone. That happens when the conflict has sharpened to the point where the lawyer’s prior access to both sides’ confidential information makes continued representation of either party untenable. Experienced lawyers head this off by addressing revocation consequences in the original consent document.
Conflicts also evolve mid-engagement because of corporate restructurings, new parties entering a lawsuit, or other developments nobody anticipated. When circumstances change materially, the original waiver may no longer cover the new situation, and the lawyer has to either obtain fresh consent or withdraw.5American Bar Association. Model Rules of Professional Conduct: Rule 1.7 Conflict of Interest: Current Clients – Comment A waiver is not an indefinite license to proceed no matter how the facts shift.
What Skipping the Waiver Costs
Operating without a valid waiver, or with one that later collapses, exposes a lawyer to several consequences that stack on top of each other.
Disqualification. Courts have inherent authority to remove counsel operating under a conflict. When that happens, the client starts over with a new lawyer who has to be brought up to speed on everything the prior lawyer already knew, and the client pays for that education twice. In some cases, the disqualified lawyer may be ordered to bear the transition costs personally.
Fee disgorgement. Courts can order an attorney to return every fee earned while operating under an undisclosed conflict, even when the client suffered no actual financial harm. The rationale is that fee disgorgement punishes the breach of loyalty itself. A lawyer who does excellent work but fails to disclose a conflict can still forfeit the entire fee.
Disciplinary action. State bar authorities can impose sanctions from private reprimand up to suspension or disbarment. Discipline tends to be heavier when the lawyer knowingly concealed the conflict rather than simply missing it. The analysis also weighs whether the client was harmed, whether there is a pattern of violations, and whether the lawyer cooperated with the investigation.
Malpractice liability. A client who suffered financial loss because of an undisclosed conflict can sue. The client typically has to show that the conflict caused substandard representation and that better representation would have produced a different result. Recoverable damages include the losses tied to the conflicted advice, and in some cases courts have reinstated legal rights the client lost because of the attorney’s conduct.
A single undisclosed conflict can trigger a disqualification order, a fee disgorgement ruling, a disciplinary proceeding, and a malpractice suit at the same time. A properly done disclosure conversation takes a few hours.