Merchants' National Properties, Inc. Merchants' National Properties, Inc. (MNPP) engages in acquiring, developing, operating, managing, and leasing commercial real estate properties throughout the continental United States; its asset portfolio includes shopping centers, office buildings, and other commercial real estate across approximately 67 properties in 17 states, with additional investments in real estate ventures. Incorporated in Delaware on December 3, 1928, following origins tracing to 1815, the company is headquartered at 10 Grand Central, 155 E 44th Street, 7th Floor, New York, New York 10017, and owns Marx Realty & Improvement, Inc., its management and development subsidiary acquired in 2006. MNPP targets institutional and retail tenants in the diversified real estate sector, generating revenue primarily from property operations, rentals, and strategic investments.