I like the use of the checkmark in design #8, I think that illustrates me achieving my clients goals. Part of our brand is keeping our clients goals on target, can you somehow incorporate "target" within the logo?
Additionally can you incorporate buildings and/or a skyline into the logo? I want someone to recognize at a glance that I'm in real estate without them having to read the sub title. I think that buildings and/or a city skyline may accomplish this.