The title holder can decree their heir, except mayors, Mayors are voted into office. and Barons are given power by the Duke.

Mayors are voted into office if you're "establishing" a town, aka. choosing the mayor will be a thing the land owners votes on. but after that mayor is an inheritable title, it's not something people get to vote on.

Baron is just a mayor being paid to keep a garrison, but he's still a mayor.

Q: Question How is the Mayorship handled from the KS title, is it elective per life, per x years, or can your heir inherit the position as a heritable position? We've got both styles in the old medieval from mayorship being inherited (appointed) to it being a elective.

A: Mayors and Barons are inherited positions in Elyria.