You may delete (or edit) any post for up to 24 hrs. after it was posted.
A forum of this nature where information is submitted, and others, (sometimes many others) provide their time and expertise and to respond, is intended to be present for the long haul. This way it provides value well into the future.
As such think before you write. Realize that you are posting information to the public, thus do not include any information whatsoever that you would not be happy for anyone - including those you may in fact be a counter party in negotiations - to see.