The form you need to respond to an eviction case is Answer - Unlawful Detainer-Eviction (form UD-105). To complete an eviction we require the original writ, Sheriff's fee, and a signed Contra Costa County Sheriff letter of instruction for eviction located above.Locations of courts and additional help in filing an Answer to a Summons and Complaint in Contra Costa County. Make a copy of the Notice for your records and fill out a proof of service. The notice should state the date, date of move out, tenant and owner name and address. Phone queue may fill up, clients should call the next business day at 9am. If a tenant receives a pay or quit notice from a landlord after Oct. Contra Costa Senior Legal Services.