A friend of a relative had their house burglarized over a weekend. The burglars took their time and took apart everything, cutting all pictures out of their frames, etc. If a written password existed, they would have found it. The "give it to an attorney" plan would also worry me, unless I knew exactly who/what/when/where/why/how access was controlled and GUARANTEED (after all, an attorney's system could break down a…
Just give the attorney a sealed printed list of 10,000 numbered passwords. Someone with the passwords won't know what they are for. Even if they can guess that one of them is for your email account and they know your email account, they'll have to try thousands of passwords before they find the right one. In your house, and maybe with trusted friends, keep the instructions sheet with logins and a reference to the rel…
Simple, and provably useless to an adversary unless they have both passwords (aside from knowing password length/format with one).