I am currently writing a non-fiction book and I have changed the names of everyone except those people who are dead now. One of them, my ex-girlfriend . . . well her mother HATES me and would probably welcome the chance to take me to court even though everything I have written about these friends is true.
I use my real name (and admit to some pretty embarrassing stuff) so do I need to change theirs or am I cool? What are the rules regarding this?