My Ex Girlfriend Won't Move Out

Hey y'all, this is my first time seeking generalized advice about this topic, although I have spoken with my Landlord quite a bit. I'm hoping for some input to help:

The background:

I (31m) have lived in a rented property in Ontario, Canada for approximately 10 years now. During this time I have been the sole individual on the lease, and the only one paying the rent.

About five years ago, my girlfriend (32f) moved in and things went well for a period of time. The GF had some mental health diagnosis which started putting a strain on our relationship. In the last two years it has become commonplace for her to threaten me and our pets with violence. The neighbours and landlord have called the police on her a few times, so there should be a record of police-reports.

I'm not looking to vent about the toxicity, but wasn't sure if the background of one-sided-threats changes my legal options.

Anyway, back in August I reached my limit and ended the relationship. I asked her to look into moving out, which she promptly refused. She's explained that she feels entitled to this rented property as her home, and will not be leaving.

I spoke with my landlord who explained that she is not on the lease, and based on her past-actions that the landlord has witnessed, they would not be willing to switch the lease to her name. Additionally she does not actually have an income capable of paying the rent. She is on Ontario Disability, and the monthly payment is less than the rent. I have a reliable finance job and have been paying the rent myself, on-time, for the last 10 years.

In August I set the timeframe of 'end of 2024' to be moved out of the residence. I felt 90+ days was reasonable, and although the relationship ended on unpleasant terms I don't actually wish her any harm or want her to be homeless.

Unfortunately it's Dec 30th now, and I've seen no signs of progress. She continues to spend her disability money on a large number of online purchases to the property. (Computer Parts, Weed, and Sex Toys. Which she tries to flaunt. I am uninterested.)

If I bring up the issue and ask how the search is going, she escalates the situation. She's recently started threatening to call the police to say that I'm putting her under duress. My landlord and neighbours have heard enough of the violent and false threats that they've said they'll act as character-witnesses against her and her claims, if things go that far.

As you'd expect, the police aren't very helpful. The last time they were called was Nov 11th. The Ex became irate and started throwing furniture and damaging the property. When the police arrived they explained that she was just being emotional and I should give her more time.

At this point, I'm honestly not sure how to proceed. I'll mention that the apartment is rent-controlled, which is why I haven't just ended the lease to go somewhere else. It's about twice the size of new rental properties, at half the cost. So ideally I stay here. Outside of my Landlord not liking the Ex, I'm on extremely good terms with them and they've stated they'd like to keep me as a tenant.

I appreciate the read, and any advice that folks are able to provide.

Thanks,