FruminousBandersnatch wrote:For the non-lawyers, the problem is that use of words in a non-standard manner can create ambiguity. While "ask" may be a term of art in some aspects of finance (e.g., "bid-ask"), using it generically as a noun in legal drafting may open the usage up to some argument about meaning. So, while it may sound pedantic for the lawyers to get snippy about casual usage of things like "ask," it can make a difference.
In contracts, grammar can make an enormous difference. There's a famous case where millions of dollars turned on the placement and interpretation of a comma (see
http://www.theregister.co.uk/2006/10/26/the_case_of_the_million_dollar_comma/). In that case, the placement of the comma determined when one party could terminate the contract.
Correct grammar and diction are essential for lawyers because of the potential for things like this.