So what do we do about all these sources and differing information? We work at it. It is going to be an iterative process of working through the lists to bring them together. Some of the tools you will use along the way include those built into your existing contact program (the source of the list), Excel, and tools we have built into MRSware.
Following is a short list of a couple of the tools and features to use, and when to use them: