Answer:
A message in which you are trying to get the reader to agree with your opinion. This way the walk away with a new perspective over such topic.
Answer:
If there are two lawyers with similar experience and fees, you should make a decision by asking other lawyers for recommendations.
Look at the very last page (page 2) of this pdf, does it help?
https://www.monmouth.edu/resources-for-writers/documents/bluebook-explanatory-parentheticals.pdf/