The civil fraud trial of former President Trump, his adult sons, and Trump Organization executives enters its third week with a notable schedule change.

Trump's former lawyer and so-called "fixer" Michael Cohen, who was initially scheduled to begin his testimony on Tuesday, has delayed his court appearance due to a preexisting medical condition.

"I look forward to testifying and correcting the record as to the multiple misstatements and responses by previous witnesses who stated … 'I don't recall.' Unfortunately for them, I do," Cohen told ABC News on Saturday.

Trump is expected to attend multiple days of the trial beginning on Tuesday, according to sources familiar with his plans.

In the meantime, Trump Organization executive Patrick Birney is expected to conclude his testimony this morning.

Birney is scheduled to be followed on the stand by Mark Hawthorn, the chief accounting officer at Trump Hotels.

Trump Organization executive Patrick Birney was once pressured by his former CFO, Allen Weisselberg, to use an unrealistic metric to inflate the value of Trump Tower, Birney testified.

Birney testified that he consulted a generic real estate report to determine a 2.67% capitalization rate to measure the value of Trump Tower -- despite an executive at real estate company Cushman and Wakefield recommending a higher rate, which would have decreased Trump Tower's value.

When Weisselberg and Birney discussed the topic in a Trump Tower restroom, Birney said he encouraged the CFO to use a higher, more realistic capitalization rate that would be more sustainable, in order to maintain the building's value in the future, Birney testified.

"I think he said, just use 2.67%," Birney recalled. "I said I am fine using that capitalization rate, but I am worried that if we are only using 2.67, the building is so old, next year there might not be a cap rate as low as 2.67."

The New York attorney general alleges that Weisselberg "systematically rejected" multiple valuations of Trump Tower in 2019 that would have lowered its value between $161 and $224 million.

Court has adjourned for the day, with Birney scheduled to continue his testimony on Monday morning.

Trump Organization executives considered adding $144 million to Trump's net worth based on a "premium for presidential property" in 2017, according to testimony of executive Patrick Birney.

The premium, which was applied to draft versions of Trump's financial statements, varied between 15% and 35% for Trump's properties, including his Mar-a-Lago Club, which was described in documents as the "presidential winter residence," according to materials entered into evidence.

The potential adjustment followed a $200 million shortfall between Trump's 2016 and 2017 statements, after a Forbes magazine article prompted executives to revalue the former president's penthouse, state attorneys said.

"Who directed you?" state attorney Eric Haren asked Birney about adding the premium.

"I don't really remember, but probably Allen Weisselberg," Birney said.

Birney testified that the premium was eventually removed from the 2017 statement, according to a document that tracked changes made to the statement. He did not provide additional context about why the premium was removed.

Trump Organization executive Patrick Birney will continue his testimony this morning on Day Nine of the trial.

Roughly 40 years younger than ex-Trump Organization CFO Allen Weisselberg -- his former boss and the previous witness in the trial -- Birney testified yesterday that he largely relied on Weisselberg and controller Jeffrey McConney to put together Trump's annual financial statements.

"I was not the final decision maker," said Birney, who was an assistant VP during that time period.

State attorney Kevin Wallace highlighted Birney's statements during his opening statement as evidence of an alleged conspiracy within the Trump Organization to inflate Trump's net worth.

"He likes to see it go up," Birney said, according to Wallace.

If Birney completes his testimony today, Trump Hotels chief accounting officer Mark Hawthorn is scheduled to testify next.

After claiming a net worth of $8 billion, Donald Trump declined to share his financial statements with bankers related to his $1 billion bid to purchase the Buffalo Bills football team in 2014, according to documents presented at trial and testimony from Morgan Stanley executive K. Don Cornwell.

Of the 86 parties contacted to potentially bid on the Bills, Trump was one of six parties to make a final bid, according to a Morgan Stanley document shown at trial.

However, when Morgan Stanley attempted a close review of Trump's bid, Trump declined to provide his financial statements.

"We feel it is premature to sign the consent release forms until such time as we know that Mr. Trump is the final bidder," then-Trump attorney Michael Cohen said in a 2014 email shown at trial.

During a management presentation with Bills' leadership, Trump instead handed out a Forbes magazine list to support his bid, according to Cornwell.

"He gave us handouts of the Forbes list of the top-paid entertainers," Cornwell said.

Trump eventually lost his bid to purchase the football team to billionaire Terry Pegula, who outbid Trump by $400 million.

During cross-examination, Cornwell acknowledged that a lawsuit Trump previously brought against the NFL, as well as his affiliation with casinos, also limited the likelihood of his success.

"You thought that President Trump had little chance of being approved by the NFL?" defense attorney Ivan Feris asked.

"Yes," Cornwell replied.

Trump's lawyers have argued that his bid to purchase the Bills -- which has featured prominently in the testimony of other witnesses -- is irrelevant to the conduct alleged in the attorney general's lawsuit.

"It is the defense position that none of this relates to a cause of action in this case," Feris said.