Al, please excuse the stupid assed answers.
#1 it is in your best interest to listen to what the real estate agent has to say. They are there to represent you (no matter if they are selling or listing agents).
You are in the “negotiating phase” not the contract phase. The client can walk at any time regardless of anything.
The client is less confident or at ease when you are there to “help them answer all the questions”. If the home inspector needs answers you will be contacted. Our job as a home inspector is to observe, document and report conditions that we see. It doesn’t matter if they need to be fixed or not it is important that the client knows that they exist. If you bought a used car and you can say that the tires will need replacing in the next six months before the snow flies you can plan. It does not have any effect on the rest of the vehicle.
#2 All you have to worry about is that the AC is disconnected. Now there are home inspectors that will think this is a significant concern. If it is disconnected they have no right to turn it back on.
Home inspectors are not qualified, certified or licensed in any way when it comes to HVAC (including whether or not it should be turned on). (Including whether or not it should be tested).
It all depends on who shows up for the home inspection.
As for home warranties, for the most part they suck.
So for the most part we simply trie to observe, report and identify what the client needs to know at the time, date and season that the inspection takes place upon.