You need Conditional text for each field that could be empty.
When you have an empty field you also need to make the space between the
words conditional.
For empty paragraphs an Hidden Paragraph (don't forget to deselect the
View Hidden Paragraph).
The fields and conditions are shown below, for
A client asked me a question I am unable to answer, or find definite
information about. I suspect the answer will be "not possible", but
wanted to check with you folks first.
In mail merge and labels there is a work-around to skip empty lines, but
is there a hack to skip empty fields within an oth