• He that is his own lawyer has a fool for a client - Человек сам себе плохой советчик (4)
• Lawyers are thieves - В суд ногой, в карман рукой (B)
• Man who is his own lawyer has a fool for a client (A) - Человек сам себе плохой советчик (4)
• Only a fool is his own lawyer - Человек сам себе плохой советчик (4)
Русско-английский словарь пословиц и поговорок. Академик.ру. 2013.