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To conduct a commercial eviction in CA, you must start with giving a 3 day written notice (not an email telling them they owe rent) stating they have 3 days to pay rent or leave. If they do not pay, then the landlord has to give them a 5 day written notice telling them to leave for unlawful detainer. If the tenant does not leave in the 5 days, then you can lock them out of the property contemporaneous with filing suit for unlawful eviction. They are then given 15 days to make arrangements to get their property with the landlord and if they fail to do so then the landlord sends them a notice of belief of abandonment telling them that you are seizing their property in the premises. The case would then go to court and you can get a court order against them and also seek a judgment for past due rents.
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