A pension fund is asking a judge to order Hewitt to relinquish his controlling stake in the national tax-preparation service after an internal review found that while running the company, he had sex in his office and hired relatives of female employees with whom he’d had romantic relationships.

Liberty’s directors voted in September to remove Hewitt as chief executive officer. The pension fund says that doesn’t go far enough, claiming Hewitt is breaching his legal duties to shareholders.

Hewitt’s refusal to sell his stake has caused so much turmoil at the Virginia Beach-based firm that Liberty delayed an earnings release set for Dec. 6 and watched its auditor, KPMG, resign over Hewitt’s continued involvement with the company, the asbestos workers’ pension fund said in the suit.

Liberty’s “value has been harmed by the reputational harm Hewitt has wrought on the company,’’ according to the Dec. 11 complaint, which says the internal review also found that he gave a sweetheart deal on a tax-return franchise to a girlfriend.

The Liberty case is just the latest in a string of firings of prominent men as sexual harassment accusations shake public figures in fields as diverse as the media, the U.S. Congress and restaurant chains. Even company founders such as Uber’s Travis Kalanick and the Weinstein Co.’s Harvey Weinstein have lost their jobs in the wake of harassment allegations.

Increasingly, company boards are being drawn into the fray. “This is opening up a whole new area of liability for corporations,’’ said Davia Temin, president and CEO of Temin & Co., a New York-based crisis management company. “They have to seriously look at the risks this behavior poses to the company.’’

Liberty declined to comment on the lawsuit, but said the company “remains fully committed and focused on the upcoming tax season.” John Paris, Hewitt’s lawyer, didn’t immediately return a call for comment.

Hewitt launched Liberty in 1997 after losing a battle for control of Jackson-Hewitt, the first tax preparation chain he founded in 1982. The company was sold to HFS Inc. for $480 million in cash. Liberty racked up more than $170 million in revenue in 2016.

A July call to Liberty ethics hotline touched off an internal investigation of Hewitt’s activities, according to the suit. Directors hired the New York-based law firm of Skadden Arps Slate Meagher & Flom to probe the CEO’s behavior.

The law firm found Hewitt had romantic relationships with at least 10 female employees that created a hostile work environment at the company, according to the complaint.

Hewitt caused Liberty officials to favor his romantic partners, according to the suit. In one case, he granted a girlfriend the right to buy a tax-prep franchise without a down payment. When she later decided to cash out of the business, he commanded executives to pay her seven times the franchise’s value plus $220,000 in cash and stock, according to the suit.

The pension fund also claims Hewitt has moved to oust directors who opposed him. Last month, Hewitt removed two directors and replaced them with his own picks. A third director voluntarily stepped down. A fourth board member, John Garel, announced Nov. 13 that he wouldn’t seek reelection to the board because of the upheaval tied to Hewitt’s actions.

Hewitt has seriously damaged the company through his “improper behavior, the resignation of Liberty’s auditor, and the signals Hewitt has sent to the market through his aggressive re-assertion of control that he will not operate the company for the good of its equity owners, but instead for his own personal enrichment and gratification,’’ the pension fund alleged.

The case is Asbestos Workers Philadelphia Pension Fund v. John Hewitt, 2017-0883, Delaware Chancery Court (Wilmington).