Is it possibly for someone to get a restraining order on someonewith a restraining order against them?

Asking for someone I know. He's starting the process of a divorce. Was forced out of the house he owns and is protected by a prenuptial agreement. He's told her she needs to find some place else to go or he'll get one for her violent outbursts. She's been arrested once in the past for assault. She said she'd file one in him, ending his career in law enforcement. She then seems to have started trying to drain his bank accounts. He's trying to get in with an attorney this coming week, but I want to make sure he can be protected from her.