How about just appraising "as is" and leave it at that noting the hazards etc.
In any case, I don't think it is a good idea to get into the security bars thing as you are making a recommendation that you can be liable for; I think the best way to handle it is like you did the rest of the items, recommend that a competent tradesman, local code official etc inspect and determine what needs to be done; said person to be determined at the client’s sole discretion.
In the same line of thinking, it might be good to change - by a state certified general contractor - to "by a qualified professional of the clients sole determination" then the client is responsible for who does what etc........
I have quite a bit of experience at this type of thing, from the loan funding and portfolio review standpoint and I think the above would serve you best as it applies to limiting your liability.
Hope this helps.