A question on making an offer

[Mary Paras]

I've always used a real estate agent, to make an offer for a property.  Recently, I've been hearing that RE investors  are making offers on their own even if they  are not agents.  Can this happen, and if so, what forms do I need  to use?  The forms that I've seen my agent  use have broker and agent info and signatures, so, seems like I need  to use different  forms.