To be pedantic (guilty ), I think you need to add:Anyone is entitled to walk onto any residential premises so long as:
1. They do not go past the main front door
2. They do not access locked gates etc
3. There is no current AVO
4. They are entering the property for a lawful purpose and
5. The common law "implied consent" to enter has not been withdrawn.
Point 4 rules out people intending harm to or theft of property or people, etc.
Point 5 allows the person with the legal right to occupy the property (the tenant in this instance) to place clear notices at the access points to the property notifying the public that the implied consent is withdrawn (eg private property, no trespassing, do not enter without an appointment etc). In such an instance, it is a trespass to cross the property boundary.
Combine these common law principles with the usual lease clauses that the tenant is entitled to "quiet enjoyment", and a landlord absolutely cannot go knocking on the door every day. In fact, without notice, they shouldn't ever knock on the door.
Yes, you can drive by. But taking photos, staring (or sitting across the road observing for a lengthy period), and/or speaking/yelling at the tenants, though, may be a cause to legitimately complain of harassment, or breach of quiet enjoyment under the lease.