Another lawsuit has been filed against Fox News claiming the company has cultivated a toxic culture in which harassment, assault and discrimination are ignored—or worse, cause for retaliation—by the company and its executives. This marks the fourth recently filed suit in which longtime Fox News in-house attorney Dianne Brandi is a named defendant.

On the face of it, it's fairly unusual to have a top in-house lawyer named in a number of suits, litigation attorneys say, and any company facing such a situation will have hard decisions to make.

In a complaint filed Sept. 18 against Brandi, 21st Century Fox and subsidiary Fox News Network, as well as spokeswoman Irena Briganti and anchor Charles Payne, former Fox News political commentator Scottie Nell Hughes alleged that Payne raped her in 2013 and the network retaliated by blacklisting her and leaking a “false narrative” to the National Enquirer.