Code of Professional Responsibility and Opinions of the D.C. Bar Legal Ethics Committee (1991): Opinions 2 - 215. Per D.C. Bar Association: "Opinions 2-209 interpret the D.C. Code of Professional Responsibility that was in effect in the District of Columbia prior to January 1, 1991. As a very general matter, the older ethics opinions continue to provide some valid guidance, particularly to the extent that the language (interpreted in the ethics opinion) from the D.C. Code was subsequently adopted in the D.C. Rules of Professional Conduct, and no subsequent ethics opinions have analyzed the language of the D.C. Rules in a different light. In some instances, amendments to the D.C. Rules or other law may affect substantive changes to these older opinions."