Business & farm

Thank you very much for your biggest support.

I have few more questions. 

If I decide to mail the 1065 without getting any extension,

1.What are the requirements that want to attach with 1065?

2.Can I attach w-7 copies with it?

3.Can I apply for partners ITIN by attaching w-7 copies with 1065 ir is there another process for it?

4.To fill w-7 do partners  want to contact IRS in their home country or no?