Yes, it's highly unethical. We are talking attorneys here so ethics are a pretty low bar, but it's even beneath that one.
Heh, your post made me chuckle a bit...I just watched a funny movie “Bedazzled” where Elizabeth Hurley is The Devil, and I could not imagine a better choice!
She appeared as The Devil in the movie under various guises and the last one was in a dark pinstriped miniskirt suit and briefcase as a lawyer! In one where she is wearing low cut pants, she turns around and when she bends over, you can see a “666” tramp stamp!