Reborn for My Mr. Right

Her husband and his mistress worked together to kill her. She wakes again at the point where that was set in motion, the marriage still intact, her parents' inheritance still in other people's hands. She stops taking it quietly. At an auction she turns the mistress's setup back on her in front of the room, then spends billions on a stretch of coastal land called New Moon that nobody else wanted. A tycoon there takes an interest in her from that first meeting and lends her the money she needs to cover it, which makes him the one person standing behind her. What she remembers of the life she already lived tells her where her husband's family group has buried the risks in its projects. She brings those into the open, secures an old investor's backing, gets the divorce through, and takes back what her parents left her.