MFA Financial, Inc. is a real estate investment trust engaged in the business of investment, on a leveraged basis, in residential mortgage assets including agency mortgage-backed securities, non-agency mortgage-backed securities, and residential whole loans. It operates through the Mortgage-Related Assets and Lima One segments. The Mortgage-Related Assets segment is involved with the remainder of the company’s investments. The Lima One segment refers to the stand-alone mortgage origination and servicing business of Lima One. The company was founded by Stewart Zimmerman on July 24, 1997, and is headquartered in New York, NY.