|Many of them, like the Password Safe I mentioned above, encrypt everything with a master password, and the site that supplies the software never sees the master password. Thus, they can't help anyone recover the passwords if the master password is lost.|
You could break the master password into parts, and give one part to each of several relatives.
In the case of Password Safe, it's a program that is stored on your PC. Anyone who can get into the PC and who knows the master password can gain access to all the other passwords. There is no subscription that would need to be transferred, or anything like that.