I see where you were going with #2 but it looks too much like an actual heart. The heartbeat may communicate a volatile real estate market rather than a success so its not working for me. I really like changing the color on homes and heartland as you did in both #2 & #1. I like the not obvious heart choice in #1 but what is it, the kc metro outline? Very creative!
Just an idea but wWhat about a heart with a skyline (preferably Kansas city's) inside the heart and the name at the base of the skyline and perhaps if it doesn't get too busy, the slogan outlining what would be the Kansas & missouri borders? I am posting this idea for all designers to see