At first when I look at #11 all I saw was two arrows pointing toward each other. I like the house idea out of the "U" though. I'd like to see that with maybe just a (modified) solid red bar above "HAUER" instead of the two arrows. Also, let's go a tad darker on the shade of red so to dress it up a little.
I really like where #16 is going. Feels a little top heavy though and like it's still maybe missing something. Maybe if we were to add a black line underneath "Real Estate Group" and write "Keller Williams International" underneath it???