Legal Question in Legal Ethics in California

1) No harm, no foul, no damages, no lawsuit; and 2) your attorney could have filed a motion to augment the record on appeal -- which might have caused embarrassment or worse to the opposimg attorney!

Submitting false documents to a tribunal is a serious matter.

On appeal, there are several different methods for creating a record for the appellate court. In the first, and most common way, the appellant designates a record, and the court clerk prepares a "clerk's transcript" which consists of photocopies of the documents in the court file to be prepared in a booklet. I am assuming that this did not happen, since you mention that the appellant's attorney submitted a false document.

In the second method, an appendix is prepared by the appellant or appellant's attorney. This is supposed to consist of documents that were filed with the court. Additionally, an appellant can file a motion requesting judicial notice of documents or can file other types of motions that attach documents to them.

It is not clear from your post what method or what documents were submitted to the appellate court that you claim to be false. If the attorney truly submitted a document to the appellate court that was false or manufactured, I strongly suggest that you file a complaint with the State Bar, along with documentary evidence of the document's falsity.