As Donald Trump sought to buy a Florida golf course in 2011, his daughter Ivanka expressed concern he was not wealthy enough to close the deal, according to evidence presented in a civil fraud trial that threatens the former US president's business empire.
The emails and other documents were presented as New York state lawyers wrapped up their case, which argues Trump and his company inflated his net worth by as much as $US2.2 billion ($A3.4 billion) to win better financing terms.
They are seeking more than $US250 million in penalties and restrictions that could strip Trump of some of his best-known trophy properties.
Testifying as the state's final witness, Ivanka Trump sought to distance herself from the questionable valuation methods that have already been ruled fraudulent by the judge overseeing the trial.
She acknowledged she worked on real estate deals for the company but said she was not involved in calculating Trump's net worth.
"I generally understood that there was a personal guarantee," she testified on Wednesday.
"This level of granularity was not something that I can sit here today and say that I recall."
Trump's lawyer Christopher Kise said he would ask Engoron to resolve the case in the defence's favour on Thursday, though he is unlikely to prevail.
The lawsuit by New York Attorney-General Letitia James, a Democrat, accuses Trump and his family businesses of manipulating real estate asset values to dupe lenders and insurers and embellish Trump's reputation as a successful businessman.
Trump has acknowledged on the witness stand that some of the estimates of golf courses, office towers and other company assets were inaccurate, though he said many were undervalued.
Unlike her siblings and father, Ivanka Trump is not a defendant in the case.
As a top executive at the Trump Organization between 2011 and 2017, Ivanka said she focused on redeveloping the Doral golf course in Florida and the Old Post Office property in Washington.
At the trial, she was shown a 2011 email in which she acknowledged that a requirement by lender Deutsche Bank that her father maintain a net worth of at least $US3 billion was a problem but encouraged company officials to approve it anyway.
"We wanted to get a great rate and the only way to get proceeds/term and principal where we want them is to guarantee the deal," she wrote to a Trump Organization lawyer.
The two sides ultimately agreed to set the net-worth requirement at $US2.5 billion, even though her father claimed a net worth of $US4.3 billion that year.
She was also shown a 2011 email she received from the federal government expressing concern about irregularities in Trump's financial statements as the company was proposing to redevelop the Old Post Office.
Other evidence showed she profited personally from that deal, but she again said she did not recall specifics.
Trump, who leads his rivals for the 2024 Republican presidential nomination despite a maelstrom of legal troubles, has denied wrongdoing and accused James and Justice Arthur Engoron of political bias.
Trump acknowledged on the witness stand that valuations for his properties were not always accurate but said the errors were not relevant to the financial institutions that used them to price deals.
His sons Donald Jr and Eric Trump testified last week that the financial documents at the heart of the case were not their responsibility, though emails and other documents showed they might have been more involved than their testimony indicated.
Ivanka joined her father during his 2017-21 term in the White House, leaving her brothers in charge of the company during that time.
James said Ivanka nevertheless was involved in manipulating property values.
In a ruling that found Trump, his adult sons and 10 of his companies liable for fraud, Engoron described in scathing terms how the defendants concocted valuations.
As well as this case, Trump is a defendant in four separate criminal cases, including two stemming from his attempts to overturn Democrat Joe Biden's 2020 presidential election victory.