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Posted on: Jul 15, 2025

By Daniel J. Siegel 

The American Bar Association (ABA) Standing Committee on Ethics and Professional Responsibility issued Formal Opinion 516, addressing the circumstances under which a lawyer may permissibly withdraw from representing a client under ABA Model Rule of Professional Conduct 1.16(b)(1). Because Pa. Rule of Professional Conduct 1/16(b)(1) is identical to the Model Rule, this opinion provides helpful guidance for Pennsylvania lawyers navigating the ethical complexities of terminating client relationships, particularly when withdrawal is not mandatory or explicitly justified under other provisions of Rule 1.16. 

Key Provisions of Rule 1.16(b)(1)  

Rule 1.16(b)(1) allows a lawyer to voluntarily withdraw from representation if the withdrawal can be accomplished “without material adverse effect on the interests of the client.” The opinion clarifies that a “material adverse effect” occurs when withdrawal significantly harms the client’s ability to achieve their legal objectives, increases the cost of the matter, or impedes the forward progress of the representation. Importantly, the lawyer’s motivation for withdrawal is irrelevant under this rule, meaning a lawyer may withdraw for personal or professional reasons, provided the client’s interests are not materially harmed. 

Defining “Material Adverse Effect”  

The opinion emphasizes that the term “material adverse effect” is narrowly focused on the client’s interests in the specific matter for which the lawyer was retained. Withdrawal is considered materially adverse if it results in significant harm to the client’s case, delays critical progress, or imposes substantial additional costs, such as duplicated fees for successor counsel. Conversely, withdrawal is unlikely to have a material adverse effect in situations where: 

  • The representation is at an early stage.  

  • The client has retained successor counsel. 

  • The lawyer has completed all substantive work on the matter.  

  • No imminent legal matters are pending.  
     

The opinion also highlights that client disappointment or perceived disloyalty does not constitute a material adverse effect under Rule 1.16(b)(1). The rule is designed to protect the client’s substantive interests in the matter, not their emotional attachment to the lawyer.  

Circumstances Where Withdrawal May Be Permissible  

The opinion outlines several scenarios where withdrawal is unlikely to harm the client’s interests: 

  1. Early Stage of Representation: If a lawyer realizes early in the engagement that the matter is not a good fit for his skills or resources, withdrawal may be permissible, provided the client has ample time to secure new counsel.  

  1. Co-Counsel Arrangements: When multiple lawyers represent a client, the withdrawal of one lawyer may not materially harm the client’s interests if the remaining counsel can complete the work.  

  1. Completed Representation: If the lawyer has substantially completed the matter, any remaining tasks may be easily handled by successor counsel without significant disruption.  

  1. No Ongoing Matters: If the lawyer has completed all assigned work and no new matters are imminent, the client’s interests are unlikely to be materially affected by the withdrawal.  

Remediating Adverse Effects  

The opinion advises lawyers to take proactive steps to mitigate potential harm when withdrawing, including: 

  • Assisting the client in finding successor counsel.  

  • Collaborating with the new lawyer to ensure a smooth transition.  

  • Refunding or foregoing fees for work that will need to be duplicated.  

By taking these measures, lawyers can reduce the likelihood of causing a material adverse effect and ensure compliance with Rule 1.16(b)(1).  

The “Hot Potato” Doctrine  

One of the more controversial aspects of the opinion is its discussion of the “hot potato” doctrine, which addresses situations when a lawyer terminates a client relationship to represent a more lucrative or advantageous client in a matter adverse to the former client. Courts have historically disapproved of this practice, viewing it as disloyal and harmful to public confidence in the legal profession.  However, the opinion argues that the “hot potato” doctrine is not incorporated into the Rule and that a lawyer’s motivation for withdrawal is irrelevant under Rule 1.16(b)(1).  

The opinion acknowledges that courts may disqualify lawyers who drop a client “like a hot potato” to advocate against them in another case. Still, it emphasizes that such disqualification decisions are based on judicial common law rather than the Rules of Professional Conduct. The opinion concludes that, under Rule 1.16(b)(1), a lawyer may withdraw to represent an adverse party, provided the withdrawal does not materially harm the client’s interests in the original matter.  

The opinion includes a rare dissent from two committee members, who express concerns about the “hot potato” portion of the opinion. They argue that the opinion fails to address the breadth of judicial precedent on the doctrine adequately and may mislead lawyers about the law. The dissent also criticizes the opinion for not addressing mandatory withdrawal under Rule 1.16(a) and for neglecting transactional scenarios where conflicts of interest arise.  

The dissenting members advocate for more practical guidance to help lawyers close files and transform dormant clients into former clients, thereby limiting ethical duties and conflict scenarios. They also suggest that the opinion should provide more precise guidance for transactional lawyers, who often face unique challenges in managing client relationships.  

Conclusion 

ABA Formal Opinion 516 provides valuable guidance for lawyers seeking to navigate the ethical complexities of permissive withdrawal under Rule 1.16(b)(1). It clarifies the meaning of “material adverse effect” and offers a framework for analyzing when withdrawal is permissible. The opinion also addresses the controversial “hot potato” doctrine, emphasizing that a lawyer’s motivation for withdrawal is irrelevant under the Model Rules.  

While the opinion is comprehensive, the dissent highlights areas where additional guidance could be helpful, particularly for transactional lawyers and those dealing with mandatory withdrawal scenarios. Ultimately, the opinion underscores the importance of careful consideration and proactive measures when terminating client relationships to ensure compliance with ethical standards and protect the client’s interests.  

Daniel J. Siegel, principal of the Law Offices of Daniel J. Siegel and Chair of the Pennsylvania Bar Association Committee on Legal Ethics and Professional Responsibility, regularly represents injured workers in claims before all Pennsylvania courts. He also provides ethical guidance and Disciplinary Board representation for attorneys and law firms; he is the editor of Fee Agreements in Pennsylvania (6th Edition) and author of Leaving a Law Practice: Practical and Ethical Issues for Lawyers and Law Firms (Second Edition), published by the Pennsylvania Bar Institute. He can be reached at dan@danieljsiegel.com. 

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