1. like people said - not your keys not your coins.  just like banks, not your $$
2. you will not find a new york lawyer who will take your case anonymously - will not happen, when you share your info with lawyer - they will share with gov't .  In america there is no "lawyer-client" privilege - not in practice since 9/11.  Anything AML/FATCA is considered national security and all info will be shared by lawyer.
3. unfortunately......say goodbye to your privacy or your coins - you will not keep both.