If you need documents you have to sign, then Sign My Pad Pro could help out. It is a program that will import a PDF document, so you can sign, and send off.
Download the PDF from the internet, or import it from another location. You can set up a signature, or sign it right there. When it’s done, the new PDF is created and you can then send the document out .
Sign My Pad is $3.99, and the Pro version is $19.99.
Autriv also has a stylus for the iPad. It is magnetic, so it can stick to the side of the iPad when not in use.