The Last Dragonlord by Joanne Bertin

A solitary shape‑shifting dragonlord who has long hidden among humans finds his ordered life upended when a mysterious woman appears and is revealed to share his rare nature; as political intrigue, assassination attempts, and an ancient conspiracy threaten both dragonlords and the kingdoms that rely on them as impartial arbiters, he must confront his forgotten past, accept unexpected love, and choose how to balance his dragon instincts with his human ties.

Purchase from Bookshop.org