Ex-Trump CFO Allen Weisselberg acknowledged under questioning that the Trump Organization failed to fulfill some of the basic promises detailed in letters between the firm and its external accountant, Mazars USA.

"Do you believe the Trump Organization fulfilled that fundamental responsibility?" state attorney Solomon asked Weisselberg regarding a 2017 letter from Mazars that outlined the Trump Organization's responsibility to select the accounting principles used in financial statements.

"No," Weisselberg responded.

Asked about a separate letter outlining the Trump Organization's responsibility to comply with generally accepted accounting principles, or GAAP, Weisselberg initially suggested that the Trump Organization fully relied on Mazars to comply with the accounting standards.

"We relied on Mazars to understand GAAP," Weisselberg said.

"You were relying on Mazars to make a representation back to Mazars?" Solomon said, prompting Weisselberg to reverse his statement.

When questioned about the seemingly boilerplate accounting obligations to which the Trump Organization agreed, Weisselberg appeared to struggle to articulate who at the Trump Organization fulfilled the basic responsibilities as outlined.

After initially evading the state's question, ex-Trump CFO Allen Weisselberg denied that he ever met with Trump to discuss his financial statements.

"Did you ever meet with Donald Trump or Michael Cohen where there was discussion of the statement of financial condition before it was finalized?" state attorney Louis Solomon asked.

Weisselberg initially responded that he did not recall such a meeting happening, before answering more definitively.

"No. I don't believe it happened," Weisselberg said.

Judge Engoron, appearing skeptical of the answer, asked Weisselberg to confirm.

"Could it have happened, and you just don't remember?" Engoron asked.

"I am saying it did not happen," Weisselberg responded.

The attorney general's opening statement for the case included a portion of the deposition of former Trump attorney Michael Cohen, who claimed that Trump met with him and Weisselberg to direct them to increase his net worth, in order "to be higher on the Forbes list" of billionaires.

"Allen and I were tasked with taking the assets, increasing each of those asset classes in order to accommodate that eight-billion-dollar number [Trump requested]," Cohen said in the deposition.

Former Trump Organization CFO Allen Weisselberg testified that Trump's triplex apartment in Trump Tower is 10,996 square feet -- which is a third the size that Trump claimed on financial documents.

In October 1994, Trump signed a document that certified his penthouse triplex is 10,996 square feet, but his statements of financial condition for several years beginning in 2012 listed the apartment as 30,000 square feet.

An attorney with the New York attorney general's office showed the page with Trump's signature to Weisselberg, who appeared to struggle to explain the discrepancy.

"It was always in my mind a de minimis asset on the statement of financial condition," Weisselberg said. "I never even thought about the apartment."

Louis Solomon of the attorney general's office confronted Weisselberg with emails from Forbes magazine seeking clarity about the apartment's size, as well as a letter signed by Weisselberg certifying the 30,000 square foot figure to the Trump Organization's then-accountant, Mazars USA.

Weisselberg offered a lengthy take on the discrepancy, prompting Judge Arthur Engoron to intercede.

"Your role is to answer the questions, not to give speeches. Please just answer the questions," Engoron said.

"Forbes was right, the triplex was actually only 10,996, right?" Solomon asked.

"Right," Weisselberg finally conceded.

"I've been through quite a bit the last two years," Weisselberg said at one point during the morning's questioning. The former CFO moved to Florida following three months in jail after he pleaded guilty last year to criminal fraud charges and subsequently testified against the Trump Organization.

Ex-Trump CFO Allen Weisselberg is expected to face questions this morning about his work valuing properties like Trump's triplex apartment in Trump Tower and Trump's 40 Wall Street building, as well as the Trump Organization's efforts to secure loans from banks and Weisselberg's direct conversations with the former president.

Weisselberg is the second named defendant to testify in the ongoing civil trial.

Trump Organization controller and co-defendant Jeffrey McConney, who concluded his testimony on Friday, was deemed a hostile witness by Judge Arthur Engoron, giving the state more latitude in their questions.

Cushman & Wakefield executive David McArdle, who was hired to appraise the value of 71 undeveloped residential units at the Trump National Golf Club in Westchester County, New York, testified that he also conducted multiple appraisals for conservation easements at the property in 2014 and 2015.

Signing a conservation easement would allow the Trump Organization to give up their development rights and treat the difference in property value as a charitable donation, according to the New York attorney general.

By giving up the right to develop the 71 residential units, McArdle found that the donation was worth $43 million, according to an April 2014 appraisal. A later appraisal McArdle conducted in 2015 landed on a similar valuation of $45.2 million.

But Trump's financial statements from those years appear to ignore the appraisals, valuing the land from the undeveloped units at $101 million, according to documents entered into evidence.

"Based on the supporting data, the only source for the increase in the number of units and profit per unit were telephone conversations with Eric Trump," the New York attorney general alleged in her complaint.

McArdle also testified that he was consulted to appraise Seven Springs, a New York estate Trump purchased for $7.5 million in 1995.

To value the property, which could be subdivided into 24 to 26 residential lots, McArdle testified that he toured the site, consulted a local expert, and spoke with Eric Trump on multiple occasions.

"He had a very high opinion of the property, which didn't surprise me," McArdle said.

His appraisal ultimately determined the total value for the lots in 2014 was $30-$50 million, McArdle said.

But the New York attorney general alleges that appraisal was ignored in Trump's 2014 financial statement, in favor of a "false and misleading" value of $161 million for a portion of the undeveloped lots.