Guaranty GuarantyPayment Guaranty, Non-Recourse Guaranty, or other guaranty by a Guarantor for the Mortgage Loan. executed by a Key Principal Key PrincipalPerson who controls and/or manages the Borrower or the Property, is critical to the successful operation and management of the Borrower and the Property, and/or may be required to provide a Guaranty. on Form 4502 series or  Form 6020 series , or approved by Fannie Mae Fannie MaeThis Glossary term Is Created Using Automation in Lower Environments and is used for testing purposes only!! .