Steve asks essentially this question in the comments below which received the following response in the Mental Health Q&A;

100.1 On the ITT form at section 11, question 4 refers to organisations with limited liability, however there appears to be no appropriate response where an organisation is neither a charity or has limited liability (eg sole practitioner or partnership). Please advise.

Unfortunately, the answer to this question should have also made reference to organisations without limited liability (in addition to charities). Rather than making a change to the ITTs, organisations that do not have limited liability should select the answer option ‘No –registered charity’.

This is of course a cruelly ironic statement about the nature of much Legal Aid work.