@Jiten Patel , have you asked the former owner what was the agreement. Don't worry about having a "good" relationship with your tenant. It's business; not personal. If it is not in the lease, tell him he is responsible for taking care of the lawn maintenance. If he says no way, tell him you'll pay to have it cut and charge him back for it. Make sure you drive by the property often, since I have no doubt the tenant will only cut the lawn once in a blue moon. Good luck!