Hello and thank you for contacting us. This is Dwayne B. and I’m an expert here and looking forward to assisting you today. If at any point any of my answers aren’t clear please don’t hesitate to ask for clarification. Also, I can only answer the questions you specifically ask and based on the facts that you give so please be sure that you ask the questions you want to ask and provide all necessary facts. Please note: This is general information for educational purposes only and is not legal advice. No specific course of action is proposed herein, and no attorney-client relationship or privilege is formed by speaking to an expert on this site. By continuing, you confirm that you understand and agree to these terms.
As you probably know, the Rules of Professional Conduct are written broadly. I don't necessarily agree that the attorney violated any rules since, based upon your facts, they had express permission of their client to sign their name.
However, if there was a breach of a rule it would be Rule 5-200 (A) or (B), which you can see at http://rules.calbar.ca.gov/Portals/10/documents/2015_CaliforniaRulesofProfessionalConduct.pdf
As you can see, those sections deal with telling the court the truth and being careful not to misrepresent anything to the court.
If your question has been answered then I'd offer my best wishes to you and ask that you please not forget to leave a Positive Rating so I receive credit for my work.
Of course, please feel free to ask any follow up questions in this thread. I want to be sure that all of your questions are answered. In addition, once you issue your Positive Rating the question will lock open and no longer time out so you can come back to it anytime in the future if you think of any follow ups.