Prominent attorney Alex Spiro is withdrawing from Adams’ sexual assault lawsuit as he represents the mayor in a federal corruption case

Prominent attorney Alex Spiro will not defend Eric Adams in a lawsuit accusing him of a decades-old sexual assault — because he is also defending the embattled mayor on recent federal corruption allegations.

Spiro — a regular defense attorney for the rich and famous whose clients have included Elon Musk and Jay-Z — said in a court filing Wednesday that his law firm, Quinn Emanuel Urquhart & Sullivan, would withdraw from the civil suit after conflicts of interest raised by the city’s board expressed concern that he would be advising the mayor in both cases.

“The [board] “expressed concern that Quinn Emanuel’s representation of defendant Adams in both the criminal case pending in the Southern District of New York and the present matter constituted a conflict of interest and informed Quinn Emanuel thereof,” the Manhattan Supreme Court filing states.

“Therefore, there is at least the appearance of a potential conflict of interest for Quinn Emanuel to continue to represent defendant Adams in both matters.”

The court is expected to approve Spiro’s request, which is largely a formality.

Spiro’s decision means another attorney will have to defend Adams, the city and the NYPD’s Transit Bureau in the lawsuit – which stems from allegations that Hizzoner sexually abused Lorna Beach-Mathura when the two worked for the Transit Bureau decades ago.

According to her lawsuit, Beach-Mathura alleges that Adams pressured her into performing oral sex in exchange for helping her get a promotion.

But when she rejected his advances, Adams allegedly forced her to touch him and ejaculate on her in 1993 while they were in a patrol car, the lawsuit says.

Adams denies the incident ever happened.

“I don’t recall ever meeting this person during my time on the police force,” he said shortly after the lawsuit was made public.

Spiro also defended Adams — who last week became the first sitting mayor of New York City to be criminally charged — in the Manhattan federal case against him.

Adams is accused of accepting improper gifts from Turkish officials and businessmen, including $123,000 in free or deeply discounted hotels and flights, dating back to his time as Brooklyn borough president a decade ago.

In return for the apparent freebies, Adams did favors — including urging city officials to push through fast-track approvals for the Turkish consulate in Manhattan, court papers say.

He also fraudulently received $10 million in related public campaign funds through straw donors from foreign sources, federal authorities allege.

Spiro said on September 26: “There is no corruption, this is not a real case.”

The lawyer also accused federal authorities of illegally releasing classified grand jury information to the media in order to “unfairly disadvantage the defendant.”

“The harm from these leaks was severe,” Spiro and the defense team wrote in a motion to dismiss the case.

“A cascade of critical articles based on one-sided, misleading government information undermined public support for the mayor long before he was ever charged with a crime and able to defend himself in court.”

The mayor’s indictment came shortly after a series of federal raids targeting Adams’ top lieutenants, key advisers and close allies.

While it’s not clear what federal authorities were looking for, sources say authorities were looking for evidence of corruption and influence peddling, among other things.

Several high-ranking officials have already resigned over the raids, including former NYPD Commissioner Edward Caban and his aide Tim Pearson.