the person who i need to interviewing is a "handyman" who worked for the landlord. I need to question him.

I need to help to creating appropriate 20-30 interview questions.

Case Scenario is the follow:

The tenant, Chad Stick, and the landlord, Giovanni Ritorno, entered into a residential lease on the terms contained in the attached lease.

The landlord and tenant have had a great relationship since the tenancy began. Recently, however, there have been some problems. The tenant has not paid rent for the last eight months. Mr. Stick says that he refuses to pay rent because he wants to get the attention of the landlord, who he says has been ignoring him for months. Mr. Stick says there have been a lot of problems with the place for the last 12 months. Some of the problems he says need fixing is a leaky faucet in the bathroom, a broken window crank in one of the three bedrooms, the glass stovetop is cracked, and the refrigerator is not working at all. The tenant says some of the repairs have recently been done, but not all. According to the tenant, the stovetop and the refrigerator still need repairing. The tenant says that because of the maintenance issues he has not been able to supply himself with food and meals in the unit. The landlord says that all repairs have been done. The landlord says the stovetop was broken by the tenant and that he has repaired the refrigerator four times. The landlord is angry that the tenant has not paid any rent for the last eight months and wants to evict the tenant immediately.