For CA contracts, there are special wording for counter offer (which is issued and signed by one party), if the 2nd party agrees with the counter offer, then they need to sign and return to the party who issued the counter. After that, it's done. But we do need signatures not just email a counter back without signature or initial.
However, like I said, that's what happens in CA and while I am waiting for VA agent to reply at this late hour, I did some googling... here they are ..
From what I am reading - you will need to have e-Signature if you are emailing the contract out without physically signing it. I donâ€™t think sending a email out with blank signature without some approved e-Signature format works.
Check out this definition of e-Signature http://www.answers.com/topic/electronic-signature?cat=technology
I will let you know when I hear back from a VA agent, or if we are lucky, they will just go ahead and reply here.