Yeah Bob, All of that info is included in my Pre-inspection agreement that gets faxed or emailed to the client prior to the inspection. I also verbally tell them about access to items so they can pass it on to the agent. A lot of the agents that I have dealt with are on the ball, of course I'm sure some of them roll their eyes and those are the ones I will have utilities or access proeblems with.
As far as roofs, I will get on anything that is not too steep or not too high. I have found that I can get on the majority of roofs in my area. If I can't, My ladder goes up on every side of the house so I can view from roof level and at the very least I view with binoculars. I always inform the client as soon as possible how the roof or attic is inspected and it is also written in the report.
I agree that it is very important to get in the attic (as well as the roof) and will make every good faith attempt to do so before I disclaim such items.
As always, my safety and liability comes first!!
Eric