Multistate Fannie Mae Assignment of Mortgage — Single Family is a legal document used to transfer ownership of a mortgage from one party to another. The document is used when a lender (Fannie Mae) is selling or transferring an existing mortgage to another lender. It outlines the terms of the transaction, including the amount of the mortgage, the interest rate, and the loan terms, as well as the rights and responsibilities of the parties involved. The document also states the conditions under which the mortgage may be transferred. There are two types of Multistate Fannie Mae Assignment of Mortgage — Single Family: the standard assignment and the specialized assignment. The standard assignment is used for standard residential mortgages and includes all the necessary terms and conditions of the transfer. The specialized assignment is for specific types of mortgages, such as adjustable rate mortgages, balloon mortgages, and other types of mortgages with special terms.