Hi,
One of my characters is a Mentor, and recently when I adressed a newbie as Lord, I was informed that the title was reserved for the 'Lords of the realm' and instead I address them as 'Sir', but then I replied informing them that the title 'Sir' is supposed to be used only if the character has earned it... and unless that must be refrained from being used.
I wish to know what is generally followed and what I must have used.