I like the "ProActive Tax Group" font in #86 better than in #166 -- has more motion.
Could you put the correct tag line under #86? Please make sure it is readable; tag line in #166 is a little small/light.
I really like the mark, but there's something about the diamond orientation that creates white space between it and the type, kind of makes me feel like the mark/icon is not connected to the type.
Just one idea: Shorten the vertical rule so that it end (bottom of it ends) in alignment with the bottom of "tax group" -- and then stretch the tag line so that it is closer to the mark/icon, runs under the vertical rule, and ends at the far right under "group." Hope that makes sense. Just trying to accomplish two things - enlarging the tagline, and connecting the icon and the type section. Other ideas?