I am guessing we are talking about different levels of commercial inspection here. I wouldn't pretend to have the knowledge or expertise to inspect a strip mall, large grocery store, high rise or anything similar. All the commercial I have done (maybe 200 inspections, W.A.G.) have been things like 4 small connected retail units, small warehouses, house converted to an insurance office, 12 unit B&B, that sort of thing. I have always used the same standards as a home inspection, i.e, inspect and report on everything I can access. I have never had any client complaints about the scope, so will continue to inspect the same way. I agree with you about the "protection" aspect. The protection of the buyer is that they can decide to buy or walk, nothing more. It shouldn't matter to us which they choose (although more and more I find myself hoping they will walk). You can put 100 warning stickers on a ladder and people are still going to choose to stand on the top step.