Thanks so much for providing this service. Since I'm at work right now, I've only had a chance to read through the first 50 posts and they have really given me food for thought!
This may already have been mentioned, but in the case of a second marriage where the deceased is the biological parent of children that have refused any contact with their parent, it is essential to stipulate in a Will what portion, if any, is to be left to those children. If it is the intent of the parent to leave nothing, it should be stated in the Will with an explanation as to why. This will save the surviving spouse the further grief of having to deal with children they have never met who show up just to see what they can get.
Good Luck! Can't wait to get back later and read more.....