Chicago tenant issue

[Matthew Scott]

I am asking this question for a friend of mine in Chicago. 

She has a tenant that stopped paying rent about 9 months ago. When confronted he just suggested she go through the eviction process, presumably because he knows that it will be hard for her to do because of the pandemic. Do you guys have any suggestions with this?

The more pressing issue she is facing is that there is a leak that needs to be addressed inside that person's apartment. Something in his bathroom is leaking and she only found out about it once water started filling up a light fixture in an apartment below his. She has called and sent him messages multiple times. She had a contractor show up to his place yesterday and although the could hear him inside, he would not open the door.

How can she handle this situation so that she can allow a plumber inside to fix the leak issue?

Thank you for any suggestions.