The duty in context
No conflict between current clients client
The lawyer must not act for two or more current clients with conflicting interests except within defined exceptions with each client's informed consent and protection of confidentiality.
How the codes express this duty
E&W Solicitors SRA Principles & Code CCS 6.2 strong 841 cases
6.2 You do not act in relation to a matter or particular aspect of it if you have a conflict of interest or a significant risk of such a conflict in relation to that matter or aspect of it, unless: (a) the clients have a substantially common interest ...; or the clients are competing for the same objective, and the conditions below are met ...
SRA Code of Conduct for Solicitors, RELs and RFLs · 2019 · archived copy · official source ↗
E&W Barristers BSB Handbook rC21.3; gC69 strong 29 cases
rC21.3 there is a conflict of interest, or real risk of conflict of interest, between the prospective client and one or more of your former or existing clients in respect of the particular matter unless all of the clients who have an interest in the particular matter give their informed consent to your acting in such circumstances;
BSB Handbook · current · archived copy · official source ↗
Cayman Islands Legal Services Code 2026 R.7.1; R.7.2; R.7.3 strong
Except in the limited circumstances dealt with in R.7.3, an attorney-at-law or a recognised law entity shall not act if there is a conflict of interests or a significant risk of a conflict... may act, in non-contentious matters, for more than one client whose interests conflict in the matter only with the informed written consent of all clients.
Cayman Islands Legal Services Code of Professional Conduct · 2026 · archived copy
AU Solicitors Solicitors' Conduct Rules Rules 11.1; 11.2; 11.3; 11.4 strong 126 cases
11.1 A solicitor and a law practice must avoid conflicts between the duties owed to two or more current clients. 11.2 If a solicitor or a law practice seeks to act for two or more clients in the same or related matters where the clients' interests are adverse and there is a conflict or potential conflict... the solicitor or law practice must not act, except where permitted by Rules 11.3 and 11.4.
Australian Solicitors' Conduct Rules · 2015 (June 2026 compilation) · archived copy · official source ↗
AU Barristers Uniform Barristers Rules r113 strong 38 cases
A barrister who is briefed to appear for two or more parties in any case must determine as soon as possible whether the interests of the clients may, as a real possibility, conflict and, if so, the barrister must then return the brief for: (a) all the clients in the case of confidentiality to which Rule 108 would apply; or (b) one or more of the clients so as to remove that possibility of conflict.
Legal Profession Uniform Conduct (Barristers) Rules · 2015 (as amended 14 May 2025) · archived copy · official source ↗
IE Solicitors Law Society Guide Ch3 — General; Conflict of interest between two clients; Non-conveyancing transactions strong 50 cases
A solicitor should not act in a matter, or any part of a matter, where there is a conflict of interest... If a solicitor, acting with ordinary care, would give different advice to different clients about the same matter, there is a conflict of interest, and the solicitor should not act for both clients... Where clients consent to one firm representing both parties to a non-conveyancing transaction, the law requires that each client gives informed consent.
Solicitor's Guide to Professional Conduct (Law Society of Ireland) · 4th ed. (2022) · archived copy · official source ↗
IE Barristers Bar Code of Conduct Rule 3.16; Rule 10.10 partial 50 cases
In cases involving several parties, Barristers on receipt of instructions for more than one of such parties should consider whether or not any conflict arises as between the individual interests of each of the clients and they shall advise the solicitor as to whether any of the clients should be separately advised and represented by a Barrister or solicitor. ... Barristers may appear for more than one defendant in a criminal trial provided they have satisfied themselves that there is no conflict of interest.
Code of Conduct for the Bar of Ireland · 2024 · archived copy · official source ↗
JM Attorneys Canons of Professional Ethics Canon IV(k); Canon IV(l); Canon IV(m) strong 125 cases
Subject to the provisions of Canon IV (l), an Attorney shall not accept or continue his retainer or employment on behalf of two or more clients if their interests are likely to conflict or if the independent professional judgment of the Attorney is likely to be impaired. (l) Notwithstanding the provisions of Canon IV (k), an Attorney may represent multiple clients if he can adequately represent the interests of each and if each consent to such representation after full disclosure of the possible effects of such multiple representation.
Legal Profession (Canons of Professional Ethics) Rules · 1978 (principal) · archived copy · official source ↗
JE Lawyers Law Society of Jersey Code R.6.1; R.6.3 strong
Except in the limited circumstances dealt with in R.6.3, a member or their firm must not act if there is a conflict of interests or a significant risk of a conflict... A member or their firm may act, in non-contentious matters, for more than one client whose interests conflict in the matter only with the informed written consent of all clients.
Law Society of Jersey Code of Conduct · 1 January 2017 · archived copy · official source ↗
ON Lawyers LSO Rules of Prof. Conduct r 3.4-2; r 3.4-3 strong
3.4-2 A lawyer shall not represent a client in a matter when there is a conflict of interest unless there is consent, which must be fully informed and voluntary after disclosure, from all affected clients and the lawyer reasonably believes that he or she is able to represent each client without having a material adverse effect upon the representation of or loyalty to the other client. [3.4-3 Despite rule 3.4-2, a lawyer shall not represent opposing parties in a dispute.]
Law Society of Ontario — Rules of Professional Conduct · current · archived copy · official source ↗
BC Lawyers BC Code r 3.4-2 strong 35 cases
A lawyer must not represent a client in a matter when there is a conflict of interest unless there is express or implied consent from all clients and the lawyer reasonably believes that he or she is able to represent each client without having a material adverse effect upon the representation of or loyalty to the other client.
Code of Professional Conduct for British Columbia (BC Code) · 2017 · archived copy · official source ↗
NZ Lawyers Conduct & Client Care Rules r 6.1 strong
A lawyer must not act for more than 1 client on a matter in any circumstances where there is a more than negligible risk that the lawyer may be unable to discharge the obligations owed to 1 or more of the clients.
Lawyers and Conveyancers Act (Lawyers: Conduct and Client Care) Rules 2008 · SR 2008/214 · archived copy · official source ↗
SCO Solicitors LSS Standards of Conduct B1.7 strong 55 cases
You must not act for two or more clients in matters where there is a conflict of interest between the clients or for any client where there is a conflict between the interest of the client and your interest or that of your practice unit.
Law Society of Scotland — Practice Rules 2011, Rule B1 (Standards of Conduct) · 2011 · archived copy · official source ↗
SG Lawyers Professional Conduct Rules 2015 r 20 (Conflict, or potential conflict, between interests of 2 or more clients) strong 8 cases
20 Conflict, or potential conflict, between interests of 2 or more clients
Legal Profession (Professional Conduct) Rules 2015 · 2015 · archived copy · official source ↗
HK Solicitors Solicitors' Guide Principle 9.01 strong
A solicitor or firm of solicitors must not accept instructions to act for two or more clients where there is a conflict or a significant risk of conflict between the interests of those clients.
Hong Kong Solicitors' Guide to Professional Conduct (Volume 1) · current · archived copy · official source ↗
HK Barristers Bar Code of Conduct para 10.14(a) strong
If after he has accepted the brief or instructions on behalf of more than one lay client, there is or appears to be a conflict or a risk of conflict between the interests of any one or more of such clients, he must not continue to act for any client unless all such clients give their consent to his so acting and he can do so without embarrassment.
Code of Conduct of the Bar of the Hong Kong SAR · 2018 · archived copy · official source ↗
Cases dealing with this duty
1,282 decisions · link basis: found breached = a tribunal finding; rule cited = the mapped provision is cited in the decision; text match = high-precision text pattern
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Gary Ackinclose
Breaches
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Jonathan Horner
Breaches, Failures
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Babatunde Adegboyega Taiwo
Breaches
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Michael Kenneth Smith
Breaches, Failures
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Ashton Lloyd Doherty
Breaches, Failures
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Edward Sibley
Breaches, Client Money, Solicitors' Accounts Rules
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Mark Henry David Payne
Breaches, Solicitors' Accounts Rules
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Joanne Power
Breaches, Failures, Solicitors' Accounts Rules
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Maurice Frankson
Guilty of Professional Misconduct | Disciplinary Committee decision delivered December 19, 2017. || RESULT: Fined | Disciplinary Committee decision delivered January 4, 2018. View PDF DECISION OF THE DISCIPLINARY COMMIT…
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Howard A. Lettman
Suspended | Disciplinary Committee decision delivered November 25, 2017. View PDF DECISION OF THE DISCIPLINARY COMMITTEE OF THE GENERAL LEGAL COUNCIL COMPLAINT NO: 62/2110 IN THE MATTER OF RUDOLF CAMPBELL and HOWARD LET…
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Jermaine Ryan Simms
Restitution Ordered | Disciplinary Committee decision delivered October 12, 2017. View PDF View Decision SANCTION DECISION OF THE DISCIPLINARY COMMITTEE OF THE GENERAL LEGAL COUNCIL COMPLAINT NO: 48/2009 IN THE MATTER O…
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Christopher Roy Penty
Agreed Statement of Facts | Summary
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Berger, Victor
1. Failure to make costs disclosure to clients 2. Breach undertakings to Legal Services Commissioner 3. Purporting to act under power of attorney after donor of power died 4. Purporting to act as exectuor when no grant …
Costs Removal of lawyer's name from the Roll of Local Lawyers $0.00 Appeal Status: Dismissed Appeal Decision 3 PDFs View decision -
Ivor George Peynado
Guilty | Disciplinary Committee decision delivered June 24, 2017. || Suspended | Disciplinary Committee decision delivered April 17, 2019. View PDF DECISION OF THE DISCIPLINARY COMMITTEE OF THE GENERAL LEGAL COUNCIL COM…
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Howard A. Lettman
Guilty of Professional Misconduct | Disciplinary Committee decision delivered June 24, 2017. || Struck off | Disciplinary Committee decision delivered February 05, 2018. View PDF DECISION OF THE DISCIPLINARY COMMITTEE O…
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Russell William Tracy BIDDLE
Professional misconduct (theft of a total of $1,821,230.59 from two of his clients' estates)
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Jodi Leigh DINGWALL
3 Charges of Delay and Failure to advance a client's actions - Proven. 3 Charges of False Representations - Proven.
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Beazley, Philip James
Professional Misconduct: 1. Breach section 67 LPA 2004 - not notifying a show cause event 2. Failure to honour undertaking 3. Breach of section 254 LPA 2004 - failure to deposit trust money in a trust account 4. Breach …
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Donnelly, Paul Joseph
1. Failures to appear at Court 2. Breach of trust account obligations 3. Breach of costs disclosure obligations 4. Mixing of trust monies and office account monies 5. Misappropriation 6. Failure to respond to Regulator'…
Costs Removal of practitioner's name from the Roll of Local Lawyers $0.00 Proceedings Instituted 1 PDF View decision -
Chad Everett ROWE
28 Charges of professional misconduct proven
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David Herlihy
In the matter of David Herlihy, solicitor, formerly practising as principal of David Herlihy, Solicitors, Lord Edward Street, Kilmallock, Co Limerick, and in the matter of the Solicitors Acts 1954-2011 [9286/DT90/15 and…
strike_off View decision -
Harold C. Brady
Finding of Professional Misconduct | Disciplinary Committee decision delivered February 25, 2017. | Struck off, Restitution ordered - March 4, 2017 View PDF DECISION OF THE DISCIPLINARY COMMITTEE OF THE GENERAL LEGAL CO…
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Duty classification does not yet cover every jurisdiction (Ontario, New Zealand and Singapore decisions are indexed but not yet duty-classified), so counts here understate those corpora.