The Middlesex County Clerk's Office stands ready to assist with recordation of real property ownership and transfer, and in retrieval of information. A deed of trust is a legal document that is the security for a real estate loan.Upon the appointment of any succeeding Trustee the title to the Trust. I'm just going to take you through the exact process of how to fill out a deed of trust exactly and you can see what I mean it's very straight forward. Unlock property secrets with our comprehensive guide to the Middlesex Registry of Deeds. In a real estate transaction—the purchase of a home, say—a lender gives the borrower money in exchange for one or more promissory notes linked to a trust deed. In a real estate transaction—the purchase of a home, say—a lender gives the borrower money in exchange for one or more promissory notes linked to a trust deed. It should not be a problem. You don't need an original deed to sell or refinance property. A quitclaim deeds affects only how the property is titled.