Are your tenants changing their A/C filters on a regular basis? How do you know? Every lease should have a clause stating that the tenant is responsible for the changing of the A/C filter within the unit. What happens if the HVAC system fails because of a filter failure? Who is responsible for the costs of the A/C repair? In this video, Harry Heist of Heist, Weisse & Wolk, P.A. explains the implications of this simple process and how to best maintain these filters in your units.