Yeah, I don’t know why people keep posting that on Reddit and Lemmy. Having been a former landlord, eviction is not difficult, it’s just that some inexperienced landlords are not aware of the laws. You own the property, If someone moves in without an agreement from you, you evict them, or more accurately, you have them charged with breaking and entering, plus trespassing.
I once rented to a couple where the boyfriend became verbally abusive and would throw things at his girlfriend during arguments. The thing is, he wasn’t on the rental agreement, she was. He refused to leave, I laughed and had his ass out within 3 hours.