My deck guy came out Friday night and took a look at the concrete forms. We made some updates, and also determined that there was not a very good way to lay out the support posts. The posts would have been right in the path So we changed the design to have one extremely long and large beam that will span the entire yard. This beam will be supported by two single posts on each end and will hold up the entire deck without any need for posts in the middle. This will create a vey open space underneath for the patio.
Here is a new 3D mockup: