Two of the lawsuits say that Mr. Epstein used his time on work-release to have sex with at least two of the young women he had recruited in New York.

One, identified in court papers as Priscilla Doe, said Mr. Epstein flew her to Florida during his imprisonment and had sex with her at his mansion while he was wearing an ankle monitor.

Priscilla said in court papers that she had been drawn into his world two years earlier, at age 20. Her experience after she was offered a job as a masseuse closely tracked patterns described by his accusers in other lawsuits.

The first two visits, she had just given him massages and received payments. After that, however, Mr. Epstein began assaulting her sexually with his hands and sex toys, telling her that he had resources that he would use to advance her dancing career “if she would do what he wanted to do.”

In 2007, Priscilla flew to Mr. Epstein’s private island in the Caribbean and posted about the trip on social media, the lawsuit said. The next morning, Mr. Epstein was furious, held her down by her wrists and threatened her safety if she ever told anyone about what she knew of his activities.

After that, she “was in fear for her safety and her life and knew that strict compliance with the dictates of this very powerful man was required as a condition of maintaining her safety.” Mr. Epstein continued to coerce her into sex until 2010, the lawsuit said.

Another woman, identified only as Kaitlyn Doe, said in a lawsuit that she was introduced to Mr. Epstein through her sister, who was working for him. She said Mr. Epstein promised repeatedly that, if she complied with his sexual demands, he would help pay $20,000 for a critical medical procedure she needed. She continued to engage in sex acts with him for money until 2014.