H1B+H4+H4EAD Extension Question

[gotbeer]

 

Hello,

I am going to apply concurrently for an extension of my H1B along with H4 and H4 EAD. I am preparing the dependent documents myself. The plan is to have the attorney put the H4/EAD extension documents in the same packet as my H1B. Can you let me know if I can put up the I-539 and I-765 along with one set of supporting documents or should I have 2 separate set of supporting documents, one for H4 extension and one for  H4 EAD.

Also do I need to include a letter for the dependent (H4/H4 EAD) petitions or since they are going to be in the same packet as the H1B extension, I don't need to put any additional letters?

Thanks and your guidance is greatly appreciated.