What if cash for keys doesn't get the tenant to leave?

[Josh Mollema]

I'm looking at purchasing my first property, a triplex in Cook County, Illinois. The property is fully occupied, but one tenant isn't paying his rent, claiming hardships from COVID. I'm thinking that if I purchase the property, I can offer him cash for keys so I can turn it over to a new tenant; however, given the eviction moratorium and uncertainty about how long it will last, what can I do if he decides that he would rather live rent free than take the cash to leave? Any help will be greatly appreciated!