A search of how many lawyers were at the Wannsee Conference came back with three. According to Wikipedia: "At the Wannsee Conference, held on January 20, 1942, there were 15 participants, including at least three lawyers: Adolf Eichmann, Wilhelm Stuckart, and Otto Hofmann. The conference was primarily focused on coordinating the logistics of the Holocaust."
Reinhard Hydrich called for the meeting to be held. He wasn't a lawyer. Adolf Eichmann, at his trial in Israel claimed that he wasn't a participant, but as secretary and Hydrich's primary Lieutenant in charge of deportations, he took the notes of the meeting.
According to the Jewish Virtual Library:
"Eichmann took minutes, thirty copies of which were evidently distributed among the participants and other interested parties in the following weeks. The only surviving copy, marked No. 16 out of 30, was found in March 1947 among German Foreign Office files by American War Crimes investigators. After that discovery, the minutes, or Wannsee Protocol, rapidly attained postwar notoriety."
The “Final Solution”: The Wannsee Protocol (January 20, 1942)
This wasn’t about the Wannsee conference.
This isn’t about Wannsee 1942 but a June 5 1934 meeting.
I just posted a link to Whitman’s book in this thread. Read and judge for yourself.