Wiktionary
n. (context legal English) In a legal proceeding, an attorney who has submitted his name to the court or tribunal as the person responsible for representation of the client, irrespective of which attorneys perform work for that client.
Wikipedia
An attorney of record is any lawyer or barrister recognized by a court as representing - and therefore responsible to - a party to legal proceedings before it. Provided he or she is qualified to appear before the court in question, an attorney may become attorney of record for a party either by notifying the court of the attorney-client relationship, or by being so designated or appointed by the court.
The attorney of record is the attorney who formally appears before the court, whether in person or by means of signed documents, on behalf of a party. However, the status is also an enforcement mechanism for a jurisdiction's applicable standards of legal ethics and professional responsibility (for example, the American Bar Association Model Rules of Professional Conduct). Once an attorney is recognized as attorney of record, the attorney has a responsibility to continue representing the party in the proceedings until the case ends, or until granted leave by the court to withdraw.
Usage examples of "attorney of record".
I don't like to ask it of you, Della, but I am an attorney of record now with interests adverse to George Anclitas, and it's not ethical for me to talk with him except in the presence of his attorney.
It was a personal conversation between Hastings and Minerva and I didn't want to have anything to do with it because actually Minerva had an attorney of record.
If he did exactly as Rufus asked, he would be the attorney of record in Harms’.