A California Estoppel Affidavit is a legal document used in the state of California to prevent a person from asserting a claim or right that contradicts a previous claim or right. It is typically used to stop a tenant from denying the existence of a landlord-tenant relationship. Types of California Estoppel Affidavit include, but are not limited to, Landlord-Tenant Estoppel Certificates, Dispute Resolution Estoppel Certificates, and Foreclosure Related Estoppel Certificates. A Landlord-Tenant Estoppel Certificate is used by a tenant to provide a landlord with proof that a landlord-tenant relationship exists and that the tenant has been paying rent as agreed upon. A Dispute Resolution Estoppel Certificate is used when two parties have agreed to resolve a dispute through a mediation or settlement. It states that all claims and rights related to the dispute have been released and settled. Finally, a Foreclosure Related Estoppel Certificate is used when a foreclosure is being challenged. It prevents the borrower from denying the existence of a loan and asserts that the borrower has not paid their mortgage payments as per the agreement.