Lord-Lieutenants (LLs) are HM The Queen’s representatives in each county and metropolitan area of the UK. Their primary role is to uphold the dignity of the Crown. They are Crown appointments, appointed by The Queen on the recommendation of the Prime Minister.
There is an expectation that Lord-Lieutenants will always act to protect the dignity and integrity of the Office.
The usual practice is for a Lord-Lieutenant to step down from office.