The Stars Shine Down by Sidney Sheldon

Lara Cameron is a famous powerful wealthy New York building developer who struggled from brutal poverty in Glace Bay, a banker who took her body as part of her first deal, to Chicago, banker Keller whose love she takes lightly for granted. As her skyscrapers and boutique hotels tower on earth, she is at the top of a male dominated field. She lies and cheats to close a deal, making cruel enemies. She is forty, beautiful, glamorous, insecure, ruthless, vulnerable, secretly generous, rich – and still wants more. She marries an international concert pianist, the Lochinvar of her childhood dreams, but someone puts him in the hospital and threatens to take down her empire.