1. Amendment to Deed of Trust. A legal document that gives a mortgage lender right to any future profits that may come from leases and rents when a property owner defaults on their loan.Additional Collateral Deed of Trust, Assignment of Rents and Leases, Security Agreement and. This assignment allows the new lender to enforce the terms of the deed of trust, collect payments, and take action in case of default. An extension and modification agreement is an addendum added to an existing contract that extends the terms and makes certain changes as outlined within. An assignment of rents makes no difference in this result after a trust deed sale. Be contained in the trust deed itself as to parties to the trust deed. The "Assignment of Rents" can be a standalone document or contained within a "Deed of Trust". ("Mortgage"). Herein and, in any modification, or amendment of this Trust Deed. 1. Identify and fill in the names and addresses of the Trustor, Trustee, and Beneficiary.