MFA Financial, Inc. operates as a Real Estate Investment Trust (REIT) primarily focused on acquiring residential mortgage assets, employing a leveraged investment strategy. Its portfolio encompasses various types of mortgage-related instruments, including both agency and non-agency mortgage-backed securities, alongside residential whole loans. The company's activities are organized into two primary divisions: the Mortgage-Related Assets segment, which manages its extensive investment holdings, and the Lima One segment, dedicated to its distinct mortgage origination and servicing enterprise. Founded by Stewart Zimmerman on July 24, 1997, the firm maintains its headquarters in New York, NY.