Does an Illinois lawyer have to tell the court that an unrepresented opponent has a defense the lawyer believes is unenforceable?

Plain-English summary

A lawyer represents party A against an unrepresented party B. The lawyer knows the two signed a written agreement that could be a defense for B, but the lawyer has a good-faith belief the agreement is unenforceable; the client did not consult the lawyer before signing it. The inquiry asked whether the lawyer must advise the court of the agreement and the potential defense.

The opinion concludes the lawyer need not. Rule 3.3 imposes candor duties on lawyers dealing with courts. Subsection (a)(2) requires disclosing legal authority in the controlling jurisdiction that the lawyer knows to be directly adverse and that opposing counsel has not disclosed; subsections (a)(1) and (a)(3) bar false statements and false evidence. The opinion reads these provisions to require disclosure of adverse legal authority, not adverse facts.

Applying that distinction, the opinion holds that the existence of an agreement that might exonerate the adversary is a fact, not legal authority, so the lawyer is not required to disclose it; requiring disclosure of every fact contrary to a client's position would be an onerous burden in litigation. The lawyer's good-faith belief that the agreement is unenforceable supports the conclusion that nondisclosure does not violate Rule 3.3. The opinion cautions that the lawyer would violate subsections (a)(1) or (a)(3) by making false statements about the agreement or its existence.

In practice

The opinion holds that under Rule 3.3 an Illinois lawyer's affirmative disclosure duty to the tribunal runs to controlling adverse legal authority, not to adverse facts. A lawyer with a good-faith belief that an opponent's potential contractual defense is unenforceable need not bring the agreement to the court's attention, but the lawyer crosses into a Rule 3.3(a)(1) or (a)(3) violation by affirmatively misstating the agreement or denying its existence.

Common questions

Q: Must an Illinois lawyer disclose facts that help the other side?

A: No. The opinion reads Rule 3.3(a)(2) to require disclosure of controlling adverse legal authority, not adverse facts, noting that a duty to disclose all contrary facts would be an onerous litigation burden.

Q: Does it matter that the opponent is unrepresented?

A: The opinion's analysis turns on the legal-authority-versus-fact distinction in Rule 3.3 rather than the opponent's unrepresented status; it concludes the lawyer still need not volunteer the agreement, given the good-faith belief it is unenforceable.

Q: Can the lawyer deny the agreement exists if asked?

A: No. The opinion warns that making false statements about the agreement or its existence would violate Rule 3.3(a)(1) or (a)(3); the permission extends only to silence, not to misrepresentation.

Background and rules framework

The opinion interprets Illinois Rule of Professional Conduct 3.3 (Model Rule 3.3, candor toward the tribunal), distinguishing the duty in 3.3(a)(2) to disclose directly adverse controlling legal authority from any duty to disclose adverse facts, and reading 3.3(a)(1) and (a)(3) to bar affirmative false statements and false evidence.

Citations and references

Rules of Professional Conduct:

• Illinois RPC 3.3 (candor toward the tribunal) / MR 3.3

See also

• ISBA Ethics Op. 16-02: Withholding Controlling Legal Authority From a Tribunal
• ISBA Ethics Op. 13-05: Discovery That a Client Has Submitted False Evidence
• NYC Bar Ethics Op. 2013-2: Obligation to Act on False Evidence After a Proceeding

Source

• Landing page: https://www.isba.org/ethics/opinions/1207