The lawyer who repped Jeffrey Epstein in his 2008 teen-prostitution plea deal maintained personal ties with him, newly unsealed files show — and was later hired by Columbia University to fight the White House. Department of Justice documents on its probe into Epstein revealed that former Epstein lawyer Jay Lefkowitz kept a personal relationship with the sex offender after his conviction, including by tooling around on the millionaire financier’s private helicopter, attending his dinner parties