Can the property owner restrict where, when, or how petitions can be circulated?
Yes, within limits. Washington courts have explained that when initiative or referendum supporters collect signatures on private property, there might be limits so that the activity does not interfere with what other people are doing on the property. Just what limits might be reasonable will depend on the circumstances, including how big the area is, the potential for blocking traffic or interfering with the business involved, or perhaps whether somebody else has already made arrangements to be on the property at a particular time. There might also be other reasonable concerns. The relevant case is Initiative 172 v. Western Washington Fair Assoc., 88 Wn. App. 579, 945 P.2d 761 (1997).