I researched these a while ago and the way these “titles” work is simple: you change your name by deed poll to “Lord Appleseed” or whatever you fancy. Although

I researched these a while ago and the way these “titles” work is simple: you change your name by deed poll to “Lord Appleseed” or whatever you fancy. Although amusingly while they say deed poll, there’s no such concept in law. In actuality you just start using your new name and that’s basically it.