What you're saying sounds like it should be correct so I'm not challenging you here. However, how does a tradesman protect himself if he cannot file the lien on the property irrespective of whether the tire company owns the property or not ? The entity that owns the building leased that building to the tire company. The tire company made improvements to that building, which now, for all intents and purposes, become appurtenances to that building. That means that if the tire company decides to move out they can only take portable things (like tools, etc.) with them. The car lifts, air compressor, lighting, switching, receptacles and electric service stay put. In all fairness, how can the property owner now claim that they are absolved from all liens caused by the tire company ?