Hi Ennisdeb: I am sorry to hear you and your daughter are going through this.
I started looking for a spell to make my daughter's boyfriend go away myself. He was very controlling with her and I was worried that he was a wife-beater in the making. And to top it all off, my daughter was head over heels for this guy. I'm very respectful of the rule of 3 and of the consequences of using magik to inflict harm. And too, I realized that my daughter is growing up (she's 18) and had to make the decision to leave or stay on her own.
After giving much thought, I crafted a spell asking mother goddess to help my daughter see the truth on her own about this fellow. And yay they finally broke up. It was not a pleasant break up, but I'm so happy she's not with him and she got out of what could have been a potentially abusive relationship. Because the break up was ugly, I also crafted a protection spell for her.
And I did contact local law enforcement to get the correct details of what I can and can't do, and what my daughter can and can't do to legally protect herself. I do recommend doing that so you can speak with someone who knows first hand knowledge of what the local ordinances are for your daughter's situation.
A lot may depend on your daughter, too, as it may be her who ultimately decides if she wants this guy in or out of her life.
I'm happy to share my spells - let me know if you would like me to email the ones I used for my situation. I'm sure you can make adjustments to suit yours. They are all written out in long hand so it may take time for me to type them up.