What would you do Landorld/Tenant dispute

[Evan Westerman]

Goodmorning, I have a situation and would like some feedback. Someone I know rented out a room in there townhouse for a little over a year. There was no before or after pictures taken, no security deposit. The tenant paid rent on time and recently left for a new place. The tenant is hiring maids to come in after he leaves to clean up after him. The landlord sent pictures of mold that was in the bathroom and claimed it was from the steam of the bathroom with the door shut after use however in march 2020 they discovered mold in the living room form the HOA showing negligence with the roof. What would you do as the landlord in this situation? Can they go after the tenant for any reason?