Make the steps below to fill out Assumption Agreement of Deed of Trust and Release of Original Mortgagors - California online quickly and easily. THIS MORTGAGE ASSUMPTION AGREEMENT (hereinafter referred to as the."Agreement") made and entered into as of this ______(1)______ day of ______(2). The process is fast and easy. All you have to do is fill out our easy-to-understand questionnaire. It allows one party to "assume" the rights and responsibilities of the other party.