My residential tenant is a general contractor. His lease specifically states that he cannot make repairs and deduct the cost from the rent, he has repeatedly done so. Despite my reminding him that I have a home warranty service to cover many items and reminding him that this type of action on his part is not allowed, he has continued to take this action. He will be moving out the end of this month and has now emailed me that if I do not credit his outrageous bills toward unpaid rent, that he will file a mechanic's lien on me or the property. I do not believe this is possible as I have immediately protested and denied the invoices on his General Contractor letterhead. One invoice was for $880.00 for a roof issue that I paid a licensed roofer $150.00 to fix. Thank you for your attention to this question. The guy is making me crazy with wild assumptions and threats of what he can do.