Joe, I made sure to tell the guy that I wanted all the paperwork and a release letter. I told him I did not trust them and wanted to make sure that no one called me for more money after I had paid what we agreed to. So yes, I will be getting all the paperwork sorted before giving them the check.
It is the information on this site and the comments from people here that armed me with the knowledge to make sure the paperwork was in place. So thanks to everyone on all the threads I read here.