Rosa has advised on many types of banking transactions, prepared and negotiated different types of banking agreements, including deposit agreements, commercial and syndicated loan agreements, credit facilities linked to letters of credit and credit card agreements, corporate guarantees and security interests, repossession agreements and agreements for the management and custody of securities, among others. Likewise, she has also advised on banking regulatory matters.

As a member of the Banking and Finance Group of Jauregui, Navarrete, Nader y Rojas, S.C., she provided advice on such matters to Bank of America México, S.A., Institución de Banca Múltiple, and Bank of Tokyo-Mitsubishi (México), S.A., Institución de Banca Múltiple, among other banking institutions.

At the Supreme Court of Justice of Mexico, she worked on the development of legal precedents, such as those arising from Case ADR 2566/2015 relating to account statements, and Case ADR 1340/2009 regarding the payment of checks.