Can a lawyer represent one spouse in a divorce against the other spouse while also representing that other spouse in a separate custody case?
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This page answers the general question as of 1999. Ezel answers yours: whether it's allowed on your facts, under the current Illinois Rules of Professional Conduct, with citations.
Plain-English summary
A lawyer represented Client H in a dissolution action against his spouse, Client W, while simultaneously representing Client W in a custody proceeding against W's former husband. The question was whether the lawyer had a conflict in representing both H and W at the same time.
The opinion concluded that the lawyer had a non-waivable conflict. It applied Rule 1.7, which bars simultaneous representation of clients whose interests are directly adverse unless the lawyer reasonably believes the representation will not adversely affect either client and both consent after full disclosure. The opinion explained that the lawyer must first reasonably conclude there is no adverse effect before reaching disclosure and consent, and that dual representation is improper where a disinterested lawyer would conclude the client should not agree to it.
The opinion held that here the matters were directly related, the lawyer would learn confidential information about both clients through the simultaneous representation that would likely prove damaging to one or the other, and the lawyer's loyalty to both clients would likely be impaired. It characterized this as a direct client-to-client conflict founded on direct adversity in closely related matters that the analysis "never reaches the issue of disclosure and consent," because the objective conflict adversely affects the lawyer-client relationship. The opinion also noted that Rule 1.7 sets a stricter standard than Rule 1.9 (former clients), without the "materially" or "substantially related" modifiers.
Currency note
This opinion was issued in 1999, before Illinois adopted the 2010 Illinois Rules of Professional Conduct. The ISBA Board of Governors affirmed the opinion in January 2010 as generally consistent with the 2010 Rules (referring to Rule 1.7), while noting the specific standards referenced may differ from the 2010 Rules. Subsequent rule amendments or later opinions may have changed the analysis. Treat this page as historical context, not current guidance. Verify against current rules before relying on any specific rule or requirement mentioned here.
Common questions
Q: Can a lawyer be adverse to a client in one case while representing that client in another?
A: Not here. The opinion concluded that representing a husband in a divorce against his wife while also representing the wife in a related custody case is a direct conflict under Rule 1.7 because the lawyer's loyalty to both would likely be impaired.
Q: Can the conflict be cured if both clients consent?
A: No. The opinion held the conflict is non-waivable; the objective conflict adversely affects the lawyer-client relationship, so the analysis never reaches the disclosure-and-consent step.
Q: Why does the relationship between the two matters matter?
A: The opinion stressed the matters were directly related, so the lawyer would learn confidential information about each client that could damage the other, and could not exercise independent professional judgment for both.
Background and rules framework
The opinion interpreted Illinois Rule 1.7 (conflict of interest; Model Rule 1.7), reading subsection (a) (direct adversity) and the requirement that the lawyer first make an objective "disinterested lawyer" judgment of no adverse effect before any consent. It contrasted Rule 1.7 with Rule 1.9 (former clients) and relied on prior ISBA Opinion 95-15 and ABA Model Rule 1.7 Comment 5.
Citations and references
Rules of Professional Conduct:
- Model Rule 1.7 (conflict of interest) / Illinois Rule 1.7
Other opinions cited:
- ISBA Advisory Opinion No. 95-15: objective standard for concurrent-conflict waiver
- ABA Model Rule 1.7, Comment 5: disinterested-lawyer test for waivable conflicts
See also
- ISBA Ethics Op. 98-06: One Spouse in Divorce, Both Spouses in Bankruptcy
- ISBA Ethics Op. 99-03: Lawyer for Lender Seeking to Represent an Existing Client
Source
- Landing page: https://www.isba.org/ethics/opinions/9901
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