Seriously. Jesus christ, write your private key file to a USB flash drive and give it to the lawyer/firm in charge of executing your will. Done. Oh, and he real

Seriously. Jesus christ, write your private key file to a USB flash drive and give it to the lawyer/firm in charge of executing your will. Done. Oh, and he really knows nothing about cryptography if he thinks "splitting up the key" is a cryptographically secure way to encrypt your data. Having even part of a private key can hurt.