Cotati City Councilwoman Pat Gilardi has agreed to step down from her elected post and take a job as district director for Sonoma County Supervisor Susan Gorin.

Gilardi begins her new county job Monday. She is set to resign from city office effective Friday, creating an immediate vacancy on the five-member Cotati council.

Gilardi, 54, has been on the council since 2000 and was set to assume the rotating mayor's post for the third time before news of her negotiations for the county job surfaced two weeks ago.

She said previously she would step down from her appointed board post on the Sonoma County Transportation Authority. Her last day at the Marin Independent Journal, where she is a sales manager, is also Friday.

As Gorin's district director, Gilardi will be paid $73,008 annually and be responsible for outreach to constituents, scheduling and representing the supervisor at events she is unable to attend. The full-time, at-will position for each supervisor has rarely if ever gone to a sitting elected official, sources familiar with county government said.