When a family death turns an old New York apartment building into disputed ground, every drawer, envelope, key, and keepsake becomes evidence. Gloria Mercer never expected her brother Calvin to leave behind a multimillion-dollar Harlem property—or a family trust that forces everyone she loves to decide what inheritance really means. Some see freedom in selling. Others see history worth preserving. The tenants see something more immediate: home. As relatives circle the property, old tensions rise and forgotten records begin to surface. Money orders, photographs, labor receipts, letters, and family memories reveal that the building may have had one legal owner, but it was made possible by many hands. Now the Mercer family must decide what can be sold, what must be protected, and what deserves to be carried forward. Set inside the intimate pressure of New York family life, What We Keep is a layered novel about inheritance, Black family wealth, Caribbean and Black American identity, memory, grief, ownership, and the hidden cost of legacy.