Let me recommend you a modern romance novel called I'm Another Lawyer. The female lead of this novel was also a lawyer and had a complicated relationship with her sister. The male lead was also a high-ranking official. However, I'm not sure if it matches the plot described in the question, because the paragraph doesn't mention the plot of the younger sister being infatuated with the male lead. I hope my recommendation can satisfy your reading needs.
Chapter 319, "Sister Xiao Wan", is the clearest early answer because it turns Director Zhang's situation into a concrete plot event. The chapter gives readers a real answer by opening on Staring at the screen displaying "Sister Xiao Wan," Jiang Cheng...
Chapter 376, "I'm Just Afraid You Don't Need Me Anymore", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. It opens with The phone call fell into a long silence. and closes on A week passed like this before she finally brought gifts to the....
Chapter 704, "Even if I were a slave, I would be willing!", is the clearest early answer because it turns President Sun's situation into a concrete plot event. The chapter gives readers a real answer by opening on Wu Daoshan looked at Zhao Lang in shock.
Chapter 309, "Then Come Die with Me!", is the clearest early answer because it turns Zhou Xu's situation into a concrete plot event. The chapter turns that into something concrete by moving from In the dim and damp underground room, only a single incandescent bulb...
Chapter 678, "The Biggest Connection in the Circle of Friends!", is the clearest early answer because it turns Jiang Mingyu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The landlord stood up, maintaining his smile, "Fifty-eight thousand,...
Chapter 271, "How Did Shen Lan Marry an Old Fool?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from He had barely finished speaking when he received a withering look...
Chapter 543, "Please Name Ten Things You Dislike About Su Yinwan", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event.
Chapter 253, "She Hit My Head Three Times, I Hit Hers Seven Times", is the clearest early answer because it turns Round Brain's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Wen Jiaojiao immediately lost her composure, leaping up from the bed...
Chapter 325, "Miss Jiang, What Do You Think?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Xiao Yu cleared his throat and said, "So, Miss Jiang, our interview...
Chapter 277, "Jiang Yan Really Has a Youthful Vibe", is the clearest early answer because it turns Zhou Xu's situation into a concrete plot event.