Lisa Bloom, a California-based attorney, said she intended to file a lawsuit against Mr. Epstein’s estate in the coming days on behalf of two accusers. She said her two clients were above the age of 18 when Mr. Epstein victimized them in the early 2000s in New York and that they had been communicating with federal investigators. She said the lawsuit would be filed under sex-trafficking statutes, although the statute of limitations may have expired.

Ms. Bloom said she believed she had arguments that the statute of limitations may not apply, and also that the estate may waive the requirement “in the interest of justice.”

Several of Mr. Epstein’s alleged victims have already filed and settled civil suits against him and his associates.

Ms. Araoz’s attorneys said they planned to target Mr. Epstein’s assets in this suit, which include his properties in New York, Florida and the United States Virgin Islands.

While it is possible that Mr. Epstein shielded his vast wealth in shell companies, Mr. Kaiser said, the real estate properties are “hard assets that are difficult to hide.”

In her lawsuit, Ms. Araoz said she was approached by the unnamed “recruiter” — whom she described as a brunette — outside Talent Unlimited High School, where she was a freshman.

Ms. Araoz, who was raised in modest means by a single mother in Queens, said she confided in the woman about the recent death of her father from AIDS. She and the woman met for several weeks before meeting Mr. Epstein in his townhouse, located a few blocks from her school on the Upper East Side, the lawsuit said.