In mortgage terminology, what refers specifically to the legal agreement between a lender and a borrower for a loan secured by real estate?

The term that specifically refers to the legal agreement between a lender and a borrower for a loan secured by real estate is a Mortgage Agreement. This document outlines the details of the loan, including the amount borrowed, the interest rate, and the terms of repayment. Additionally, it serves as a legal instrument that provides the lender with a claim against the property in case the borrower fails to fulfill the repayment terms, which is integral to the lending process in real estate.

In contrast, while a Deed of Trust also serves to secure a loan, it involves a third party, known as a trustee, who holds the title until the loan is repaid. The Loan Note, on the other hand, is the borrower's promise to repay the loan and details the loan amount and repayment terms but does not serve as a security interest in the property itself. A Security Agreement, while it indicates a pledge of collateral, is typically used in personal property transactions rather than real estate transactions. Thus, the Mortgage Agreement is the most precise term for this legal document in the context of real estate loans.