(2) fail to disclose a material fact to a tribunal when disclosure is necessary to avoid assisting a criminal or fraudulent act by the client;
(3) fail to disclose to the tribunal legal authority in the controlling jurisdiction known to the lawyer to be directly adverse to the position of the client and not disclosed by opposing counsel; or
(4) offer evidence that the lawyer knows to be false. A lawyer may not offer testimony that the lawyer knows to be false in the form of a narrative unless so ordered by the tribunal. If a lawyer, the lawyer’s client, or a witness called by the lawyer has offered material evidence and the lawyer comes to know of its falsity, the lawyer shall take reasonable remedial measures including, if necessary, disclosure to the tribunal. A lawyer may refuse to offer evidence that the lawyer reasonably believes is false.
(c) Ex Parte Proceedings. In an ex parte proceeding a lawyer shall inform the tribunal of all material facts known to the lawyer that will enable the tribunal to make an informed decision, whether or not the facts are adverse.
(d) Extent of Lawyer’s Duties. The duties stated in this rule continue beyond the conclusion of the proceeding and apply even if compliance requires disclosure of information otherwise protected by rule 4-1.6.
(Amended March 8, 1990 (557 So.2d 1368); July 23, 1992, effective January 1, 1993 (605 So.2d 252); May 20, 2004 (875 So.2d 448); November 19, 2009, effective February 1, 2010 (24 So.3d 63).)


