Rule 1-128.6.Disqualification of collaborative lawyer and lawyers in associated law firm
Last verified June 26, 2026
Full Text of Rule 1-128.6
Rule History
[Adopted by Supreme Court Order No. 16-8300-020, effective for all cases pending or filed on or after December 31, 2016.]
Committee Commentary
Disqualification of the collaborative lawyer from participation in subsequent adjudicative proceedings in the same matter, according to the Uniform Law Commission, “is a fundamental defining characteristic of collaborative law.” Unif. Collab. Law R. 9 cmt. (Unif. Law Comm’n 2010). Requiring disqualification gives the parties and their collaborative lawyers a unique incentive to reach an acceptable settlement within the collaborative process. See Pauline H. Tesler, Collaborative Law: Achieving Effective Resolution in Divorce without Litigation, 12 (2d ed. 2009) (“Unlike any other kind of family law representation, the risk of failure is distributed to the lawyers as well as to the clients in collaborative law.”). The disqualification requirement also results in a much greater level of comfort, candor, and trust for many collaborative participants because there is no risk, for example, of being cross-examined in court by the other party’s collaborative lawyer. See David Hoffman, Foreword to the Second Edition of Tesler, supra, at xvii (“Because the parties do not have to fear that they will one day face the other party’s lawyer in adversarial proceedings in court, they are able to achieve deeper levels of communication and resolution.”).
[Adopted by Supreme Court Order No. 16-8300-020, effective for all cases pending or filed on or after December 31, 2016.]
Plain-English Summary
This rule embodies the defining feature of collaborative law. A collaborative lawyer is disqualified from appearing before a tribunal to represent a party in a proceeding related to the collaborative matter, and that disqualification extends to other lawyers in the collaborative lawyer’s firm. The only exception is that the collaborative lawyer or firm may appear to seek an order adopting an agreement reached in the process.
As the committee commentary explains, this disqualification—drawn from the Uniform Collaborative Law Rules—gives the parties and lawyers a strong incentive to settle within the process and lets participants speak candidly without fear of facing the other side’s collaborative lawyer in court.
Frequently Asked Questions
Can a collaborative lawyer represent the client in court if the process fails?
No. The collaborative lawyer and the lawyer’s firm are disqualified from representing a party in a related proceeding—except to seek an order adopting an agreement reached in the process.