Tenant with intention to sabotage

[Agustin Martinez]

BP community!! New to investing!! My first post here!!! I have a tenant who brought A roommate to supplement the rent. At some point they had a fall out so leasee left the unit ( I was unaware) so the roommate brought a roommate to supplement the rent (I was unaware) the first roommate than left the state (I was unaware). Now the original leasee contact me to terminate the lease but has the second roommate who does not want to leave! They had a text convo To which the leasee provided to me via screen shot, “ I cannot be evicted, and the credit that is on file is the one that will be damaged not mine! So I will remain rent free for as long as it takes! This situation is in Chicago with pandemic in full affect!!

Please advise BP!!