(RepublicanWire.org) – Lunden Roberts, 30, joins a growing list of former business partners and associates who have been subpoenaed to give evidence in the Department of Justice’s secretive three-year probe into Hunter’s murky financial affairs.

As well as having a three-year-old daughter with the President’s son, whom he refuses to publicly acknowledge, Roberts spent more than a year working in a junior position at his investment firm, Rosemont Seneca.

She also chased Hunter through the courts for 10 months after he claimed in 2019 that he was too poor to pay child support despite living in a $12,000-per-month Hollywood rental and driving a Porsche.

Roberts gave evidence at a federal courthouse in Joe Biden’s home state of Delaware for several hours on Tuesday morning. Details of grand jury testimony remain secret and the single mom declined to speak about the case with a DailyMail.com reporter as she left.

Scandal-plagued Hunter claimed in his 2021 memoir that he had ‘no recollection’ of Roberts, nor the ‘encounter’ that led to the birth of their daughter, Navy Joan, in 2018.

And he has never mentioned the little girl’s name in public despite paying her mom a reported $2.5 million settlement after a court-ordered DNA test proved he was the dad.

DailyMail.com revealed last year that Hunter, 52, not only had an affair with Roberts, he once hired her to work at Rosemont Seneca, his Washington, D. C.-based investment firm that now finds itself in the crosshairs of the federal inquiry.

Rosemont Seneca was one of a handful of companies listed in a May 2019 grand jury subpoena that ordered JP Morgan Chase to hand over records of transactions between Hunter’s various ventures and the Bank of China for the previous five years.

It also asked for similar ‘records, documents and accounts’ related to James Biden, the President’s brother, and Hunter’s former business partners Eric Schwerin and Devon Archer, both founding partners at Rosemont Seneca.

Archer’s attorney, Matthew Schwartz, confirmed that his client had ‘cooperated completely’ with the DOJ after the subpoena was leaked online last month by conservative research group Marco Polo.

The document offered the first real clues as to the specifics of Delaware U. S. Attorney David Weiss’s probe, which was launched in late 2018 but controversially kept under wraps until weeks after the 2020 Presidential election, supposedly to avoid becoming a campaign issue.

CNN has reported that the investigation is focused on Hunter’s business dealings in China while Politico claims it relates to whether he paid taxes on all of his income.

‘I learned yesterday for the first time that the U. S. Attorney’s Office in Delaware advised my legal counsel, also yesterday, that they are investigating my tax affairs,’ Hunter announced in December 2020.

‘I take this matter very seriously but I am confident that a professional and objective review of these matters will demonstrate that I handled my affairs legally and appropriately, including with the benefit of professional tax advisors.’

Roberts was not named in the 2019 subpoena and her involvement remained a secret until she was compelled to attend the J. Caleb Boggs Federal Building in downtown Wilmington.