Does offer letter require buyer's signature?

[Kati Stratos]

Hi everyone! I've searched online for the answer to this question and can't seem to find it. I have purchased multiple properties in PA using an agent, and in my experience the agent always has me review and sign the offer letter before he submits it. I just put an offer in on a property in NJ for the first time, and in this case, the new agent I am working with in this area went ahead and submitted it without my review or signature of the written offer (which was fine, I think, it just felt a bit odd that I hadn't reviewed it in writing like I am accustomed to from previous PA purchases).

I'm wondering if this is part of a difference in rules between PA and NJ? Or just a difference in preferences/styles between different agents? 

Thank you for reading.

Kati