Trump attorney Jay I. Bratt signed a document in June swearing that all classified materials had been returned to the National Archives. Obviously, that wasn't true. Equally obvious, if this attorney knowingly lied to the DOJ and the FBI, he's going to lose his freedom for a period of time and his license to practice forever.
But that isn't the best part.
If Mr. Bratt innocently repeated the lies he was told, by Trump that is, then Trump is likely guilty of aiding and abetting and probably obstruction. But it gets even better! Since this legal relationship likely involves the commission of a crime by one of the two parties, there is no attorney-client privilege, and Trump's attorney can be compelled to testify against him.
I could be wrong, but I'm thinking Mr. Bratt may turn out to be another Alexander Butterfield, of Watergate fame that is.