What does "opposing counsel" mean? "Opposing counsel" refers to the attorney or lawyer representing the opposing party in a lawsuit.You usually have 72 hours after the ruling to file the HURT FEELINGS MOTION. Counsel shall not argue objections in the presence of the jury without prior leave of court. 6. Yes it is required to provide your documents etc. , to the opposing side, that you are planning to use in trial to support your case. A lawyer shall not accept or continue employment as an advocate before a tribunal in a contemplated or pending adjudicatory proceeding. Competent and Diligent Representation. 10. This article answers frequently asked questions (FAQs) about representing yourself in a civil lawsuit when the other side has hired an attorney. The answer is the defendant's written response to the lawsuit filed against them.