One of Denton Wilde Sapte’s highest billers has left the City firm to join top property client London & Regional Properties (L&R) in a move that will be watched keenly by rival advisers.

Leonard Sebastian left Dentons at the beginning of May and, according to the L&R website, has become the company’s chief legal counsel and a member of the its five-strong board. It is understood to be the first time the real estate giant has appointed an in-house counsel.