When a Quote or Booking is created, it automatically inherits the Property Rules in place at that time. If you change the Property Rules later, those changes will be applied to any future Quotes or Bookings at that property but not to any existing ones.
However, for those rare situations where a retroactive change is appropriate, we have provided a tool for this purpose. It's the "Apply To" button at the top of each Property Rules page. Navigate to the Property that has the rules that you'd like to share with other properties > Rules > Apply To.
Clicking this button allows you to select exactly which type of Rules you want to apply to other properties - you don't have to do all of them:
Note that changing the Rules will not affect any Rental Agreements that have already been signed. If you change terms that would affect existing Rental Agreements, we recommend that you ask the guest to sign an updated rental agreement.