Hey Mel, Thanks for all your efforts so far, I am liking entry #4 & #6 the most so far out of your designs, and think they have more potential. The UL in a full blk square is a little too boxey for me if that's a word. I also like the window logo concept with #6 as it gives the feeling into our knowledge of the city, and serves as very welcoming to the client.
Although, I just see too many other companies around town (whether it's real estate, consulting, management) with the skyline in their logo. I want to stay away from the basic Boston skyline outline since I think it's been overused around town. Thanks, Sal ;)