A trust deed is always used together with a promissory note (also called "prom note") that sets out the amount and terms of the loan. Riverside County Deed of Trust Form.Fill in the blank form formatted to comply with all recording and content requirements. Each document presented for recording MUST include or comply with the following general requirements: The property must be located in Riverside County. In California, a deed of trust must come with security, typically a promissory note. We can assist you with preparing the deed, the notarization, and the recording process, all for a flat fee. Identify the note which is being modified;; name the parties to the mortgage; and; identify the trust deed and the mortgaged property involved.