Karen
If you are not her appointee then I;m afraid the assessor will expect her to answer the questions at the assessment, they may accept additional comment by you but it will be at the discretion of the assessor and if they refuse your input then you will need be quiet or you risk the assessment be curtailed.
There's a section in the PIP Claim guide that covers the assessment and the questions that you are likely to be asked.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
