(CNN) Ghislaine Maxwell, the late Jeffrey Epstein's former girlfriend, filed a civil claim against his estate in the US Virgin Islands because she says he promised to always support her financially -- and she says she has it in writing.

Several women who say they were sexually abused by Epstein have accused Maxwell of playing an integral part in facilitating their abuse. She has not been criminally charged and has denied all allegations.

Epstein maintained a home on Little St. James , which he acquired in 1998, and purchased nearby Great St. James in 2016, according to a lawsuit filed by the attorney general of the US Virgin Islands. The suit alleges that Epstein transported underage girls to his secluded homes in the US Virgin Islands and forced them into sex work from 2001 through 2018.

Maxwell's lawsuit says she worked for Epstein from 1999 through "at least" 2006, managing his properties all over the world and dealing with some of his affiliated businesses. Around 2004, Epstein sent Maxwell a "typewritten" letter asking that she continue to work for him and also pledging to support her financially, the lawsuit claims.