MFA Financial, Inc., together with its subsidiaries, operates as a real estate investment trust in the United States. It operates through two segments: Mortgage-Related Assets and Lima One. The Mortgage-Related Assets segment primarily invests in and manages a diversified portfolio of residential whole loans, including nonqualified mortgage loans, business purpose loans such as single-family rental loans, single-family and multifamily transitional loans, legacy re-performing and non-performing loans, and agency-eligible investor loans. This segment also invests in residential mortgage-backed securities, including agency MBS, non-agency MBS, and credit risk transfer securities. The Lima One segment includes a stand-alone mortgage origination and servicing business; and originates and services business purpose loans for real estate investors, and related mortgage banking activities. The company offers residential whole loans, including purchased credit deteriorated and non-performing loans; and mortgage servicing rights-related assets. The company's investment activities through a combination of securitization transactions, term loan warehouse financing and repurchase agreement financing. The company qualifies as a real estate investment trust for federal income tax purposes. It generally would not be subject to federal corporate income taxes if it distributes at least 90% of its taxable income to its stockholders. MFA Financial, Inc. was incorporated in 1997 and is based in New York, New York.