The California Affidavit-Death Of Joint Tenant is a legal document used to legally transfer a joint tenant's interest in a property upon their death. This document is necessary to ensure that the remaining joint tenant has rights to the property, and to avoid any legal disputes in the future. There are two types of California Affidavit-Death Of Joint Tenant: the Joint Tenancy Affidavit and the Tenancy in Common Affidavit. The Joint Tenancy Affidavit is used in cases where two or more people jointly own a property, and one of the owners has died. The surviving owner must sign the Joint Tenancy Affidavit in order to declare that they are the sole owner of the property. The Tenancy in Common Affidavit is used in cases where two or more people own a property, but no one has died. The surviving owners must sign the Tenancy in Common Affidavit in order to declare that they are the joint owners of the property. Both types of California Affidavit-Death Of Joint Tenant must be notarized to be legally valid.