K’s Signature Co., Ltd. is a private advisory firm specializing in cross-border real estate, wealth planning, and international succession between Japan and the United States. Led by founder and president Keiichi Kojima, the company supports individuals and businesses with a long-term, client-focused approach, shaping strategies around each client’s goals, investment horizon, tax considerations, and exit plans. Kojima’s credentials include CCIM and CIPS designations, an MBA from the University of Colorado Boulder, and more than US$100 million in cumulative U.S. real estate transactions.

Services include investment guidance from property acquisition through sale, portfolio and asset planning, coordination on international inheritance and succession, and asset and property management support after acquisition. The firm also offers independent second opinions on proposed transactions or existing holdings, and connects clients with real estate, tax, legal, and financial professionals in Japan, the United States, Europe, and Asia. Paid options range from an initial strategy consultation to tailored planning and ongoing private advisory. K’s Signature also shares practical U.S. real estate investment insights through published work.