It will only help to talk to loved ones if they are, indeed, loved ones. If someone has married a person who is abusive, talking it over won't help. Putting it on paper might, if copies are left with the right people. Even then, a spouse's wishes might trump the paper.
In that case, it MIGHT help to have a video with the individual concerned testifying in front of 5 or so trusted and sympathetic friends and relatives who would support her statements or his statements after death. A signed document and a witnessed video with the people who will later testify in support of what was said on the video, would be hard for a court to deny, I'd think.
being the layman that I am. And, all bets are off in FL.