Looking for your dream spot in Vegas? Mockingbird by Lennar in Summerlin Slaps. Not just 'cause the homes look sharp (though they do—seriously, talking Pinterest-core), but the vibe? It's got that neighbor-waves-at-you, dog-walks-feel-like-a-movie sort of thing going on. Smack in the middle of Summerlin, that Summerlin everyone's always raving about. You get modern digs and trails for days, and people...