This Addendum is intended for use in the City of Oakland. Please also review the separate.Going Under Contract. If your offer is accepted, you will be officially under contract. Offer One party must propose an offer to the other party. The owner must file a Property Owner Certification Prior to Move-Out Negotiations with the Rent Adjustment Program prior to entering into Move-Out Negotiations. This form is intended for use with the California Association of REALTORS® forms RPA "Residential. Once the seller accepts the offer and the terms of the contract are negotiated, the parties will sign the contract making it legally binding and enforceable.