Donald Trump and two of his children, Ivanka Trump and Donald Trump Jr., have agreed to testify in a civilian investigation in the state of New York about the former US president’s business practices.
Attorney General Letitia James is investigating whether the Trump organization misled lenders and tax authorities.
The deal came more than six months after Mrs James first issued subpoenas for their testimony, which Mr Trump, 75, and the children, both in their 40s, fought bitterly in court.
Last month, a state appeals court rejected Trump’s attempt to avoid testifying.
Trumps had argued that testimony in the civilian investigation would violate their constitutional rights because their words could be used in a related criminal investigation led by Manhattan District Attorney Alvin Bragg.
Their testimony, which began on July 15, could last through the following week, according to an agreement with Ms. James published Wednesday.
The longtime CFO of Trump’s family company, Allen Weisselberg, was accused of tax fraud in the Manhattan investigation last year.
He pleads not guilty and will appear in court later this year.
Republican Mr Trump has denied any wrongdoing and called the investigation politically motivated as Mrs James is a Democrat.
Last month, a federal judge in the state capital, Albany, rejected a separate lawsuit from Trump that sought to halt the investigation on the grounds that she was politically biased.
The judge found no evidence that she had acted in bad faith.
The Trump family has until June 13 to ask New York’s highest court, the Court of Appeals, to further delay any testimony in Ms. James’ investigation.