X. In a complaint for disbarment, Connie alleged that she engaged the services of Atty. Cesar Corpuz in the preparation and execution in her favor of a Deed of Sale over a parcel of land from her common-law husband. Subsequently, Atty. Corpuz filed a civil case on behalf of Constancia, the legal wife of Connie's common-law husband, for the annulment of the Deed of Sale, impleading Connie as defendant. In his defense, Atty. Corpuz asserted that, with the permission of Constancia, he wrote a letter to Connie informing the latter of Constancia's adverse claim and urging her to settle the same, but Connie ignored his letter. He also said that Connie did not object to his handling of the case on behalf of Constancia; therefore, he felt free to file the complaint against her. Is Atty. Corpuz guilty of misconduct for representing conflicting interests? (5%)