Definition of conflicts
A conflict of interest arises when a lawyer's ability to represent a client is compromised by competing interests or obligations. These competing pulls might come from another client, the lawyer's own financial interests, or duties owed to a former client. Recognizing conflicts early is one of the most important skills in legal practice because unmanaged conflicts can lead to disciplinary action, malpractice liability, and real harm to clients.
Types of conflicts
- Direct conflicts occur when a lawyer represents two clients whose interests are directly adverse to each other (e.g., representing both the plaintiff and defendant in the same lawsuit).
- Indirect conflicts arise when duties to one client limit the lawyer's ability to fully represent another, even if the two clients aren't directly opposed.
- Personal interest conflicts happen when a lawyer's own financial, business, or personal interests interfere with their professional judgment on behalf of a client.
- Positional conflicts emerge when a lawyer advocates for a legal position on behalf of one client that directly undermines the position they're arguing for another client in a different matter.
Actual vs. potential conflicts
An actual conflict exists right now: there is a current, direct opposition between clients' interests. A potential conflict is one that hasn't materialized yet but could develop as a matter progresses.
Lawyers must assess both types. A potential conflict can become actual at any point during representation, so continuous evaluation of client relationships is necessary. If you only check for conflicts at intake and never revisit, you risk missing a conflict that develops mid-case.
Ethical considerations
Conflict management sits at the core of professional responsibility. When a conflict arises, a lawyer must balance duties to the client, obligations to the court, and the broader standards of the profession. Two duties are especially central: loyalty and confidentiality.
Duty of loyalty
The duty of loyalty requires undivided allegiance to the client's interests. This means a lawyer cannot represent interests adverse to a current client without that client's informed consent. The duty extends beyond courtroom advocacy to every aspect of the representation, including negotiations, counseling, and transactional work.
In practice, maintaining loyalty sometimes means declining a new client or withdrawing from an existing representation entirely.
Client confidentiality
Confidentiality requires that client information stay protected from unauthorized disclosure. This duty applies to both current and former clients and survives the end of the attorney-client relationship.
In the conflict context, confidentiality creates a specific problem: information gained from one client cannot be used to benefit another. Law firms must implement secure information management systems to prevent inadvertent disclosure, especially when the firm handles matters involving related parties.
Identifying conflicts
Proactive conflict identification prevents ethical violations and potential malpractice claims before they happen. Lawyers need systematic processes for spotting conflicts, not just good instincts.
Conflict checks
A conflict check is the process of searching client databases for potential conflicts before accepting a new client or matter. The standard steps are:
- Gather the names of all parties, adverse parties, and related entities for the prospective matter.
- Search the firm's database of current clients, former clients, and adverse parties.
- Flag any matches or potential connections for further review.
- Update the database as new parties or issues emerge during representation.
Many firms use specialized conflict-checking software to handle this efficiently, but the software is only as good as the data entered into it.
Screening procedures
Beyond individual conflict checks, firms establish broader screening protocols:
- New matters are reviewed against all existing client relationships, often at multiple levels (the individual attorney, a conflicts committee, and firm management).
- Intake questionnaires gather comprehensive information about the prospective client and matter.
- All firm personnel receive regular training on conflict identification and reporting obligations.
Disclosure requirements
When a conflict is identified, transparency becomes the priority. Proper disclosure protects both the client's interests and the lawyer's ethical standing.
Informed consent
Under ABA Model Rule 1.7, a lawyer who wishes to proceed despite a conflict must obtain informed consent from all affected clients. This requires:
- Full disclosure of the nature of the conflict and how it could affect the representation.
- An explanation of the potential risks and limitations the conflict creates.
- Providing enough information for each client to make a genuinely educated decision.
- Obtaining consent in writing (confirmed in writing, per the Model Rules).
A vague or incomplete disclosure does not satisfy this standard. The client needs to understand what they're agreeing to.

Waiver of conflicts
A waiver allows representation to continue despite a known conflict. For a waiver to be valid:
- It must be voluntary, not coerced.
- The client must have a complete understanding of the conflict and its implications.
- The waiver must be reassessed over time; changed circumstances can invalidate an earlier waiver.
Some conflicts are non-waivable. For example, under Rule 1.7(b), a lawyer cannot represent opposing parties in the same litigation even with consent, because no reasonable lawyer would conclude that competent and diligent representation is possible in that situation.
Multiple client representation
Representing more than one client in the same or related matters creates layered conflict risks. Clear communication and ongoing conflict assessment are essential throughout.
Joint representation issues
Joint representation arises when a lawyer represents multiple clients in the same matter (e.g., co-defendants in a lawsuit or multiple parties in a real estate transaction). Before proceeding, the lawyer should:
- Establish a clear agreement on how information will be shared among the clients.
- Define decision-making processes if the clients' preferences diverge.
- Explain that the lawyer's ability to advocate for any one client's individual interests may be limited.
If conflicts between jointly represented clients become irreconcilable, the lawyer must withdraw from representing all of them, not just one.
Aggregate settlements
An aggregate settlement resolves the claims of multiple clients against a common party. Under ABA Model Rule 1.8(g):
- Informed consent is required from every participating client.
- Each client must be told the total settlement amount and how it will be allocated among all clients.
- A lawyer cannot agree to an aggregate settlement that sacrifices one client's interests to benefit another.
Business transactions with clients
When a lawyer enters into a business transaction with a client, the lawyer's personal financial interests can easily compromise their professional judgment. These situations demand heightened scrutiny.
Financial interests
Financial interests include investments in a client's business, shared ownership of assets, or loans between lawyer and client. Under ABA Model Rule 1.8(a), the lawyer must:
- Ensure the transaction terms are fair and reasonable to the client.
- Provide written disclosure of the terms in language the client can understand.
- Give the client a reasonable opportunity to seek independent counsel to review the deal.
- Obtain the client's informed consent in writing to both the terms and the lawyer's role.
Business relationships
Partnerships, joint ventures, or other collaborative arrangements with clients require a clear separation between the legal representation and the business activity. The lawyer must continuously evaluate whether the business relationship is affecting the quality or independence of their legal advice. If the conflict becomes unmanageable, withdrawal from the representation may be necessary.
Former client conflicts
The duties of loyalty and confidentiality don't vanish when a representation ends. Lawyers owe ongoing obligations to former clients, and these obligations shape what new matters the lawyer can take on.
Substantial relationship test
The key question for former client conflicts is whether the new matter is substantially related to the work done for the former client. Courts apply this test by looking at:
- The factual overlap between the current and former matters.
- The legal issues common to both.
- Whether the lawyer would have received confidential information in the prior representation that is relevant to the new matter.
If the matters are substantially related, the lawyer cannot represent a new client adverse to the former client without the former client's informed consent (ABA Model Rule 1.9).
Confidential information concerns
Even if the substantial relationship test isn't met, a lawyer still cannot use or reveal confidential information obtained from a former client to that client's disadvantage. This duty extends indefinitely. In practice, this may require:
- Declining a new representation to protect former client confidences.
- Implementing information barriers (ethical walls) to prevent inadvertent disclosure within a firm.

Imputed conflicts
Under the doctrine of imputation, one lawyer's conflict is generally attributed to every lawyer in the same firm. If Attorney A has a conflict, Attorneys B, C, and D at the same firm are typically disqualified as well.
Firm-wide disqualification
Imputation can bar an entire firm from a matter based on a single lawyer's conflict. This has significant practical consequences:
- Firms must consider conflict implications when hiring lateral attorneys or pursuing mergers.
- Disqualification can mean lost revenue and reputational damage.
- Courts take imputed conflicts seriously, and opposing counsel will raise them through disqualification motions.
Screening mechanisms
Some jurisdictions allow firms to avoid imputed disqualification by implementing a screen (sometimes called an ethical wall or Chinese wall) around the conflicted lawyer. Effective screening includes:
- Physically and electronically isolating the conflicted attorney from the matter.
- Restricting the attorney's access to all files and communications related to the case.
- Providing written notice to the affected client about the screening measures.
- Documenting compliance with the screen throughout the representation.
Whether screening is sufficient to cure an imputed conflict varies by jurisdiction. Some states permit it broadly; others limit it to specific situations (e.g., conflicts arising from lateral hires).
Conflict resolution strategies
When a conflict cannot be waived or managed, the lawyer must take concrete steps to resolve the situation.
Withdrawal from representation
Withdrawal is sometimes the only ethical option. The process involves:
- Notifying the client of the conflict and the need to withdraw.
- In active litigation, obtaining court permission before withdrawing.
- Minimizing harm to the client's interests during the transition (e.g., providing reasonable time to find new counsel).
- Returning client files and safeguarding confidential information.
Ethical walls
An ethical wall creates information barriers within a firm to prevent conflict-related information from reaching certain attorneys. Components of an effective wall include:
- Physical separation of the screened attorney from the relevant team.
- Restricted access to physical and electronic files.
- Prohibitions on discussing the matter with the screened attorney.
- Formal written policies and regular compliance checks.
When properly implemented, ethical walls may allow a firm to continue a representation that would otherwise require disqualification.
Consequences of conflicts
Failing to manage conflicts carries serious professional and financial risks.
Disciplinary actions
State bar associations and other regulatory bodies can impose sanctions ranging from private reprimands to suspension or disbarment. Disciplinary proceedings often result from a lawyer's failure to identify, disclose, or properly manage a conflict. Many disciplinary actions become part of the public record, affecting the lawyer's reputation and career going forward.
Malpractice liability
If a conflict of interest leads to substandard representation or client harm, the lawyer may face a malpractice lawsuit. Damages can be substantial, and a malpractice finding may jeopardize the lawyer's professional liability insurance coverage. Thorough documentation of conflict-checking procedures and management decisions is the best defense against these claims.
Ethical rules and guidelines
The rules governing conflicts of interest are codified at both the national and state level.
ABA Model Rules
The ABA Model Rules of Professional Conduct serve as the template for most state ethics codes. The most relevant rules for conflicts are:
- Rule 1.7 — Current client conflicts (the general conflict rule).
- Rule 1.8 — Specific conflict situations, including business transactions with clients and aggregate settlements.
- Rule 1.9 — Duties to former clients.
- Rule 1.10 — Imputation of conflicts within a firm.
- Rule 1.11 — Special rules for former and current government lawyers.
Each rule includes official comments that help interpret and apply the provisions in practice.
State-specific regulations
While most states base their ethics rules on the ABA Model Rules, there are meaningful differences across jurisdictions. For example, states vary on whether screening can cure imputed conflicts, what counts as sufficient informed consent, and how strictly the substantial relationship test is applied. You need to know the specific rules in the jurisdiction where you practice, not just the Model Rules.