Barbara Jones, the court-appointed special master in Cohen's case, in a court filing Wednesday said that out of more than 887,000 documents seized from Cohen in April, just 4,085 items were designated as privileged by Cohen's and Trump's legal teams.
The remaining items, or more than 883,000 files, were turned over last week to prosecutors.
Jones said she has determined that just 2,633 items flagged by Cohen and Trump's lawyers are actually privileged or partially privileged, while the remaining 1,452 items are not.
Jones' report, filed in U.S. District Court in Manhattan, said Cohen's team objected to the designation of "not privileged" for 22 of the items, "but has advised the Special Master that he will not raise these objections with the Court."
"Accordingly, all 1,452 items that have been designated 'not privileged' will be promptly released to the Government," Jones wrote.
Prosecutors will be able to use non-privileged items to continue their probe of Cohen, and possibly use against him at any trial that results.
Cohen, who has not been charged with any crimes, is being investigated for his business dealings, as well as for a $130,000 payment he made to porn star Stormy Daniels on the eve of the 2016 presidential election.
Daniels since has said the payment was in exchange for her agreeement to keep quiet about an affair she claims to have had with Trump in 2006. The White House has denied that Trump had sex with Daniels.
Cohen, who last year said that he was "the guy who would take a bullet for the president," in recent weeks has signaled being less likely to put Trump's interests ahead of his his own and his family's.
“My wife, my daughter and my son have my first loyalty and always will,” Cohen told ABC News in an off-camera interview detailed earlier this month.
“I put family and country first.”
On Monday, Trump sparked a storm of bi-partisan criticism by refusing to condemn Russian leader Vladimir Putin for what American intelligence agencies have said was Russia's interference in the 2016 presidential election.
Trump, who was meeting in Helsinki, Finland, with Putin, suggested that Putin's denial of such meddling was due the same amount of credibility as the findings by U.S. intelligence.
Cohen, in a tweet on the same day as Trump's comments, put himself at odds with his former boss.
On Thursday, in another tweet, Cohen quoted legendary CBS newsman Walter Cronkite's on the value of a free press, even as Trump continued making references to "Fake News, which the president says is "the real enemy of the people."
After Cohen confirmed Sharpton's tweet about their meeting on Friday, Sharpton tweets that he has known Cohen for decades, and that the lawyer used to "broker meetings between Trump and I when were fighting."