The attorney - or any other near-legal or patent person - can only help you with wording of your description, but he or she does not know what is the essence of your invention and what makes it different from billions of others.It's a very basic idea. I've already written some descriptions but I'm gearing up for more. Does the attorney not assist with this in some way? Or, do I simply submit it for his review?
Many of them are fairly pushy - you may find right away that exactly the same thing has already been invented, yet they will keep offering you changes in the description that they think may make it sneak under the radar of the patent office.
By the time you've finished writing the description, you won't recognize it.