You could add a simple paragraph like:

FILMING & PHOTOGRAPHY - While taking videos and photographs for personal use of family vacation events is permissible, filming and photography for commercial use is strictly prohibited.

Below is the general law but it can vary from state to state and location to location.

Property owners may legally prohibit photography on their premises but have no right to prohibit others from photographing their property from other locations.  Whether you need permission from a property owners while on their premises depends on the circumstances.  In any case, when a property owner tells you not to take photographs while you are on the premises you are legally obligated to honor the request.