Ah yes... UP is a common last name.1) This exactly why I choose private sales over a 4473 90% of the time. ~80% of my collection is composed of private sales. I am patient and will wait for what I want to come up in the classifieds...I have not been disappointed thus far.
2) For the 4473s I have done in the past, my SSN is not on any one of them and I have never been delayed or refused. That said, my last name is rather unique. YMMV.