County officials hope to create a ballot measure to raise fire and paramedic taxes in West Marin by 50 percent. Residents of San Geronimo Valley, Olema, Point Reyes, Inverness, Marshall, Tomales, Nicasio, Hicks Valley and Chileno Valley—as well as in Throckmorton and Marin City—would see parcel taxes raise to about $110 per parcel. The increase would generate . . .