As I have said the lift is in a 30 min protected shaft so how will the fire pass from floor to floor, I do accept the smoke problem but modern lift seems to have solve that one.
Enforcement officers accept labels fixed to the interior pads of scatter cushions and suggest that the label protrudes through a partly open zip at the point of sale so it is visible. Fire safety of furniture and furnishings in the home A Guide to the UK Regulations check out page 29 A4.1.
Not all exits needs to be signed but what you have stated, appear to be correct and in the case of a fire this door needs to be available and it may, without an inspection it is impossible to say.
The front exit is your principle means of escape (MoE) the rear exit is your alterative MoE so if you have to exit your premises then you use the front door and only if that is impassable do you use the rear exit. Assuming the MoE is of a high standard only one MoE will be affected in the event of a fire in your building so you will always have a means of escape available. The standard of the means of escape is a matter for the Responsible Person (owner, landlord or yourself) and without a survey I am unable to give a categoric reply.
Fire safety legislation does not give prescript requirements it simply gives requirements that needs to be achieved like, measures to reduce the risk of fire on the premises and the risk of the spread of fire on the premises, how you can achieve it is left to the guides and codes.
The insurance company is more concerned with property protection and they can lay down conditions they think necessary. If you require their insurance you have to abide by the conditions or negotiate for a more favourable situation.
Sorry about my faux pas, back in the sixties it was common to see this, but I do agree it is wrong, because if the door is open, you most likely to be unable to see the sign.
Can you post an image of the doors in question.