If you asked how many owners there were and they answered truthfully then there is no obligation to disclose the identity or nature of the previous owner.
This would not amount to misrepresentation.
It is not untruthful or misleading. It is an accurate answer to the question.
If you had asked directly and they had answered untruthfully or in a misleading way then that would be different.
I'm very sorry if that is bad news.
Can I clarify anything for you?
Yes, it is about asking really specific questions. The law of misrepresentation is generally engaged then.
I'm sorry but I cannot agree with that at all.
It is just not misrepresentation to answer a question like 'How many previous owners' by saying 'One' if that is the truth.