Michael,
I might contact an attorney but a Kovel letter may not be an option. A Kovel only covers you against disclosure if you discovered this information while working as an attorney’s agent. You should probably be careful to not dig any deeper.
As Eric would say, you should contact the best criminal lawyer in town and tell the client to go to the next best criminal lawyer. I say that in jest. I doubt you are in trouble but you want to be careful you don’t end up being a witness against your client.
Jim Wade, Esq.
