Virginia Giuffre and the Statute of Limitations for sex crimes

Claims of sexual harassment, other sex crimes, or rape are often very difficult to prove in the court of law especially if the incident dates back years.

What are actually the statute of limitations for such claims. I have only cursory followed the allegations against Jeffrey Epstein and Ghislaine Maxwell, but it appears in such high profile cases and others the statutes of limitations have no limitations. I noticed this again and again. We are told, we have to believe these females claiming to be victims of sex crimes..

Most of Ms. Giuffre's claims were filed many years after the alleged incidents occurred.

Today, I read most of the Wikipedia entry for Virginia Giuffre (born 1983). She is married since 2002, so I presume all her sexual trafficking and related sex crime crime claims date back to before her marriage. She was reportedly associated with Mr. Eppstein between 2000-2002. 

Her life and deeds suggest that she is in some ways dubious. E.g. was she really so innocent or did she seek if not exploit these environments? E.g. was she perhaps a recruiter? Is she an opportunist?

We learn following surprising things about her from Wikipedia:

1. She is an activist for female victims of sex crimes
2. She signed at least one very lucrative non disclosure agreement
3. She "from the age of seven, was molested by a close family friend"
4. She went from "an abusive situation, to being a runaway, to living in foster homes"
5. "She lived on the streets at age 13 before getting abused by a 65-year-old sex trafficker, Ron Eppinger, in Miami. Giuffre lived with Eppinger for approximately 6 months." She did not run away this time.
6. "In March 2005, while Giuffre was still establishing her family in Australia, the Palm Beach Police Department began investigating Epstein after a 14-year-old girl and her parents reported his behavior.  The girl described being recruited by a female classmate from her high school to give Epstein a massage at his mansion in exchange for money, wherein he subsequently molested her"

Will Ms. Giuffre come out with sex crime allegations against Donald Trump next after Alan Dershowitz  and Prince Andrew? I would not be surprised: "Her father worked as a maintenance manager at the Mar-a-Lago property owned by Donald Trump, and also helped Giuffre obtain a job there.", "In the summer of 2000, Giuffre first met Ghislaine Maxwell when working as a spa attendant at Donald Trump's private Mar-a-Lago club while reading a book about massage therapy."

P.S. I do little doubt that Ms. Giuffre is probably a troubled woman and needs help and treatment.