Room Inspections with new tenants/properties

[Kaylee Mitchell]

I'm a new property manager and the owner has asked that I conduct quarterly room inspections. Right from the start I had a tenant respond simply, "I pay rent, and sorry I don't allow anyone in my room. Your not inspecting my room sorry."

I want to make sure I am firm and professional without taking on an immature emotional response. What has everyone else found to be the best way when handling stubborn tenants, and how should I respond so they take me seriously?